Diagram sections — 27 (47 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY COMPUTER COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCKS STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION WIPER/WASHER
AIR CONDITIONING Air Conditioning Wiring Diagrams for Mercedes-Benz ML320 1998 List of elements for Air Conditioning Wiring Diagrams for Mercedes-Benz ML320 1998: 55 A/c compressor A/c on A/c on in A/c on switch A/c pushbutton control module (center of dash) A12 All activity module Auxiliary coolant pump B12 Blend air flap actuator motor (right side of dash) Blower motor Blower motor preresistor group (lower right side of dash) Blower relay Blower switch C/c C/g Circulating air switch Circulation pump relay Early production Engine control module (me-sfi) (left rear of engine compt) Engine cooling fan stage 1 relay Fuse 15a Fuse 30a Fuse and relay box G106 (behind left headlight) G107 (behind right headlight) G203 (right kick panel) Ground Heater a/c switch Hot at all times Hot in run or start Icing protection temperature sensor (in upper passenger's footwell) Ignition In-car temperature sensor Interior lights system Late production Left auxiliary fan M/a Ml/b Module box blower motor Mot cool Mot hot Nca Off Pnk Recirculated air flap element (right side of dash) Red Refrigerant pressure sensor Right auxiliary fan Sens gnd Sens in Tan Temp reg in Temperature regulator Vref
ANTI-LOCK BRAKES Anti-lock Brake Wiring Diagrams (1 of 2) for Mercedes-Benz ML320 1998 List of elements for Anti-lock Brake Wiring Diagrams (1 of 2) for Mercedes-Benz ML320 1998: 43 (below left side of dash) data link connector (on parking brake support bracket) parking brake switch Abs mil indicator Asr/sps/bas control module (in left side of engine compt) Bas warning indicator Battery Brake fluid level switch (in brake fluid reservoir) Brake pad wear indicator C/b C/c Computer data lines system Data high Data low Diagnosis Fuse & relay box Fuse & relay box (left side of engine compt) Fuse 10a Fuse 15a G106 (behind left headlamp) G107 (behind right headlamp) G203 (behind right kick panel) Ground Hot at all times Hot in run or start Instrument cluster Left front axle vss speed sensor Left front brake pad wear sensor Left rear axle vss speed sensor Left rear brake pad wear sensor Lf vss input Lr vss input Ml/c Mr/b Nca P/b P/d Pnk Red Rf vss input Right front axle vss speed sensor Right rear axle vss speed sensor Rr vss input Tan Anti-lock Brake Wiring Diagrams (2 of 2) for Mercedes-Benz ML320 1998 List of elements for Anti-lock Brake Wiring Diagrams (2 of 2) for Mercedes-Benz ML320 1998: 34 All activity module (left side of engine compt) Asr/ets/esp hydraulic unit (left side of engine compt) C/c C/e C/f Circuit 15 relay Fuse & relay box Fuse & relay box (left side of engine compt) Fuse 27 40a G106 (behind left headlamp) High pressure/ return pump High- pressure/ return pump relay Hot at all times Left front hold Left front release Left rear hold Left rear release Ml/a Ml/b Ml/c P/c P/d Pnk Pressure 1 switchover Pressure 1 vacuum Pressure 2 switchover Pressure 2 vacuum Red Right front hold Right front release Right rear hold Right rear release Stoplight switch (on brake pedal support) Tan
ANTI-THEFT Anti-theft Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Anti-theft Wiring Diagram for Mercedes-Benz ML320 1998: 59 (behind right headlamp) g107 (center of hatch door) g412 15c A10 A12 Acc Alarm horn Alarm horn relay All activity module (left side of engine compt, in "e" box) Ata ind B10 B11 B12 Battery C/d C/e Center console switch group Computer data lines system Door ajar switch Door lock switch Double combi- nation switch Engine hood switch Exterior lights system Fuse & relay box (left side of engine compt, in "e" box) Fuse 20a Fuse 7.5a G203 (behind G300 (below G300 (below left front seat) G301 (below right front seat) G412 (center Glass break sensor Ignition key switch Ignition switch Immobilizer control module (top right side of steering column) Incline sensor Left front door lock motor Left front seat) Left rear door lock motor Ml/a Mr/a Mr/d Of hatch door) Off P/d P/e Pnk Power distribution Red Right front door lock motor Right kick panel) Right rear door lock motor Run Start Tailgate lock motor Tan Transponder coil Trip computer control module Trunk lid micro switch
BODY COMPUTER Body Computer Wiring Diagrams for Mercedes-Benz ML320 1998 List of elements for Body Computer Wiring Diagrams for Mercedes-Benz ML320 1998: 43 15c A10 A11 A12 Acc Air conditioning system All activity module (left side of engine compt) Anti-theft system B10 B11 B12 Battery C/d Circuit 15 relay Cmr/d Computer data lines system Cooling fans system Defogger system Door locks system Exterior lights system Fuse & relay box (left side of engine compt, in "e" box) G123 (right side of firewall) G404 (behind left rear side trim panel) Headlights system Horns system Ignition switch Instrument cluster system Interior lights system Key in Off Pnk Power distribution Power windows system Red Run Seats system Seats system, power windows system Start Tan Trailer hitch socket Trailer recognition microswitch Trunk, tailgate, fuel doors system Wiper/washer system
COMPUTER DATA LINES Computer Data Lines for Mercedes-Benz ML320 1998 List of elements for Computer Data Lines for Mercedes-Benz ML320 1998: 37 1998 early production 1998 late production and 1999 A12 All activity module B10 B11 B13 C/b C/c C/e C/f Data high Data low Diagnosis Diagnostic module (obdii) generic scantool connector (below left side of dash) Engine control module (me-sfi) (in left side of engine compt, in "e" box) Fuse & relay box Fuse 10a Fuse 15a G123 (right side of firewall) G203 (below left front seat) Hot at all times Hot in run or start Instrument cluster Mr/d Mr/e Nca P/b P/c Pnk Red Srs control module (below front center of console) Tan Traction systems control module (in left side of engine compt, in "e" box) Transfer case control module (below center console, behind shift assembly) Transmission control module (behind center of dash) Trip computer control module
COOLING FAN Cooling Fan Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Cooling Fan Wiring Diagram for Mercedes-Benz ML320 1998: 20 A12 All activity module Auxiliary coolant pump B12 C/g Circulation pump relay Engine control module (me-sfi) (left side of engine compt) Engine cooling fan stage 1 relay Fuse & relay box Fuse 30a G106 (behind left headlight) G107 (behind right headlight) Hot at all times Left auxiliary fan Ml/b Module box blower motor Pnk Red Refrigerant pressure sensor Right auxiliary fan
CRUISE CONTROL Cruise Control Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Cruise Control Wiring Diagram for Mercedes-Benz ML320 1998: 24 (early prod) (late prod) Accel C/d C/e C/f Cancel Cruise control switch Decel Engine control module (me-sfi) (left side of engine compt, in e box) Fuse & relay box Fuse 22 15a Hot in run or start P/c P/d Pedal value sensor (left rear corner of engine compt) Pnk Pnk c/c Red Resume S40x1 Stoplight switch (on brake pedal support) Tan Throttle valve actuator (center rear of engine) Traction systems control module (left side of eng compt, in e box)
DEFOGGERS Defogger Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Defogger Wiring Diagram for Mercedes-Benz ML320 1998: 24 All activity module (left side of eng compt) Antenna splitter (right side of leftgate) C2 a Center console switch group Condenser Convenience relay Defogger on signal Fuse & relay box Fuse 25a Fuse 30a G300 (below left front seat) Heated rear window switch Hot at all times Interior lights system Left antenna coil P/a P/b P/e Pnk Rear window defogger Rear window defroster relay Red Right antenna coil Sound systems
ENGINE PERFORMANCE
3.2L 3.2L, Engine Performance Wiring Diagrams, Early Production (1 of 3) for Mercedes-Benz ML320 1998 List of elements for 3.2L, Engine Performance Wiring Diagrams, Early Production (1 of 3) for Mercedes-Benz ML320 1998: 25 C/c C/f Can(h)+ Can(l)- Computer data lines system Cruise control system Diagnostic module (obd ii) generic scan tool connector Engine control module (me-sfi) (left side of engine compt, in e box) Fuse and relay box G104 (left rear corner of engine compt) Left oxygen sensor 1 (before twc) (in exhaust pipe) Left oxygen sensor 2 (after twc) (in exhaust pipe) Mr/e Nca P/c Pedal value sensor (left rear corner of eng compt) Pnk Pnk/red Purge control valve (left rear corner of engine compt) Red Right oxygen sensor 1 (before twc) (in exhaust pipe) Right oxygen sensor 2 (after twc) (in exhaust pipe) Starting system Tan Transmission control module (behind center of dash) 3.2L, Engine Performance Wiring Diagrams, Early Production (2 of 3) for Mercedes-Benz ML320 1998 List of elements for 3.2L, Engine Performance Wiring Diagrams, Early Production (2 of 3) for Mercedes-Benz ML320 1998: 32 (right front of engine) air pump switchover valve (top center front of engine) resonance intake manifold switchover valve (top rear of engine) egr switchover valve Activated charcoal canister shut-off valve (under rear of vehicle, above spare wheel) Air pump (center front of engine) Battery Camshaft hall-effect sensor (right front of engine) Ckp sensor (left rear of engine) Fuel pump Fuel pump relay Fuel pump with fuel level sensor (top of fuel tank) Fuel tank pressure emissions monitoring sensor (behind trim on fuel filler pipe) Fuse 15a Fuse 40a Fuse and relay box G125 (front of engine) G404 (left rear cargo area) Hot film maf sensor (right side of engine compartment) Hot in run or start M/a M/b M/c Mr/a Mr/c Mr/d Mr/e P/a P/d Pnk Red Secondary air injection pump relay Throttle valve actuator (center rear of engine) 3.2L, Engine Performance Wiring Diagrams, Early Production (3 of 3) for Mercedes-Benz ML320 1998 List of elements for 3.2L, Engine Performance Wiring Diagrams, Early Production (3 of 3) for Mercedes-Benz ML320 1998: 20 Ect sensor (center front of engine) Engine control module (me-sfi) (left side of engine compt, in e box) Fuel injectors Fuse 10a Fuse 15a Fuse and relay box G104 (left rear corner of engine compt) Hot in run or start Ign coil Ign coil coil Knock sensor 1 (right side of engine) Knock sensor 2 (left side of engine) M/a M/c Nca Oil sensor (lower right front of engine) Pnk Pressure sensor (right front of engine) Red To spark plugs 3.2L, Engine Performance Wiring Diagrams, Late Production (1 of 3) for Mercedes-Benz ML320 1998 List of elements for 3.2L, Engine Performance Wiring Diagrams, Late Production (1 of 3) for Mercedes-Benz ML320 1998: 23 C/f Can(h)+ Can(l)- Computer data lines system Cruise control system Diagnostic module (obd ii) generic scan tool connector Engine control module (me-sfi) (left side of engine compt, in e box) Fuse and relay box G104 (left rear corner of engine compt) Left oxygen sensor 1 (before twc) (in exhaust pipe) Left oxygen sensor 2 (after twc) (in exhaust pipe) Mr/e Nca Pedal value sensor (left rear corner of eng compt) Pnk Pnk/red Purge control valve (left rear corner of engine compt) Red Right oxygen sensor 1 (before twc) (in exhaust pipe) Right oxygen sensor 2 (after twc) (in exhaust pipe) Starting system Tan Transmission control module (behind center of dash) 3.2L, Engine Performance Wiring Diagrams, Late Production (2 of 3) for Mercedes-Benz ML320 1998 List of elements for 3.2L, Engine Performance Wiring Diagrams, Late Production (2 of 3) for Mercedes-Benz ML320 1998: 31 (right front of engine) air pump switchover valve (top center front of engine) resonance intake manifold switchover valve (top rear of engine) egr switchover valve Activated charcoal canister shut-off valve (under rear of vehicle, above spare wheel) Air pump (center front of engine) Battery Camshaft hall-effect sensor (right front of engine) Ckp sensor (left rear of engine) Fuel pump Fuel pump relay Fuel pump with fuel level sensor (top of fuel tank) Fuel tank pressure emissions monitoring sensor (behind trim on fuel filler pipe) Fuse 15a Fuse 40a Fuse and relay box G125 (front of engine) G404 (left rear cargo area) Hot film maf sensor (right side of engine compartment) Hot in run or start M/a M/c Mr/a Mr/c Mr/d Mr/e P/a P/d Pnk Red Secondary air injection pump relay Throttle valve actuator (center rear of engine) 3.2L, Engine Performance Wiring Diagrams, Late Production (3 of 3) for Mercedes-Benz ML320 1998 List of elements for 3.2L, Engine Performance Wiring Diagrams, Late Production (3 of 3) for Mercedes-Benz ML320 1998: 20 Ect sensor (center front of engine) Engine control module (me-sfi) (left side of engine compt, in e box) Fuel injectors Fuse 10a Fuse 15a Fuse and relay box G104 (left rear corner of engine compt) Hot in run or start Ign coil Ign coil coil Knock sensor 1 (right side of engine) Knock sensor 2 (left side of engine) M/a M/c Nca Oil sensor (lower right front of engine) Pnk Pressure sensor (right front of engine) Red To spark plugs
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Back-up Lamps Wiring Diagram for Mercedes-Benz ML320 1998: 11 Back-up Back-up lamp switch Fuse & relay box Fuse 15a G404 (behind left rear side trim panel) G405 (behind right rear side trim panel) Hot in run or start Left taillight unit P/c Right taillight unit Trailer hitch socket Exterior Light Wiring Diagram (1 of 2) for Mercedes-Benz ML320 1998 List of elements for Exterior Light Wiring Diagram (1 of 2) for Mercedes-Benz ML320 1998: 51 (not used) 56a 56d 58l 58r 87a A11 Accy All activity module C/b C/d C/e Circuit relay Combination switch Flash Fuse & relay box (left side of engine compt) Fuse 7.5a G203 (behind right kick panel) G412 (center of hatch door) Hazard flasher switch Head Head park Headlamp flasher switch Headlights system High Hot at all times Instrument cluster system Left license plate lamp Light switch Low Ml/a Mr/d Nca Off P/b P/e P30 Park Pnk Right license plate lamp Run Shorting clip Standing Start Starter switch Tan To left headlamp unit (diagram 2 of 2) To left taillamp unit (diagram 2 of 2) To right headlamp unit (diagram 2 of 2) To right taillamp unit (diagram 2 of 2) Turn signal switch Exterior Light Wiring Diagram (2 of 2) for Mercedes-Benz ML320 1998 List of elements for Exterior Light Wiring Diagram (2 of 2) for Mercedes-Benz ML320 1998: 48 (not used) A10 All activity module Anti-lock brakes system C/c C/e C/f Center high mounted stop lamp Circuit relay From fuse 12 (diagram 1 of 2) From fuse 24 (diagram 1 of 2) Fuse & relay box (left side of engine compt) Fuse 10a Fuse 7.5a G106 (behind left headlamp) G107 (behind right headlamp) G203 (behind right kick panel) G404 (behind left rear side trim panel) G405 (behind right rear side trim panel) G412 (center of hatch door) Hot at all times Instrument cluster Left auxiliary turn signal lamp Left headlamp unit Left taillamp unit Left turn ind Left turn signal relay Ml/a Mr/d Nca P/c P/d P/e Pnk Right auxiliary turn signal lamp Right headlamp unit Right taillamp unit Right turn ind Right turn signal relay Standing/ parking Stop Stop lamp switch Tail/ parking Tan Trailer hitch socket Turn signal W/ door mounted spare wheel W/o door mounted spare wheel
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 3) for Mercedes-Benz ML320 1998 List of elements for Ground Distribution Wiring Diagram (1 of 3) for Mercedes-Benz ML320 1998: 45 (dealer installed option) left fog lamp (dealer installed option) right fog lamp Abs hydraulic unit Alarm horn All activity module Automatic dimming inside rearview mirror Auxiliary coolant pump Battery Brake fluid level switch C/b Data link connector Engine control module (me-sfi) Engine coolant level switch Engine hood switch Front dome light Fuse & relay box G106 (behind left headlamp) G107 (behind right G116 (left side of firewall) G123 (right side of firewall) Headlamp) Left auxiliary fan Left auxiliary turn signal lamp Left headlamp unit Left rear dome light Left sun visor Left two-tone horn Module box blower motor Mr/d Nca Rear dome light Rear window washer pump Right auxiliary fan Right auxiliary turn signal lamp Right headlamp unit Right rear dome light Right sun visor Right two-tone horn Sliding/ pop-up roof drive assembly Sliding/ pop-up roof switch Tan Traction system control module Windshield washer pump Wiper motor X11/22 Ground Distribution Wiring Diagram (2 of 3) for Mercedes-Benz ML320 1998 List of elements for Ground Distribution Wiring Diagram (2 of 3) for Mercedes-Benz ML320 1998: 54 A/c pushbutton control module Ata status indicator Audio amplifier C/f Center console switch group Clutch pedal switch (not used) Combination switch Diagnostic module generic scan tool connector Double combination switch Driver seat belt switch Electrically adjustable front passenger outside rear- view mirror Esp off switch (not used) Front cigar lighter Front/rear fog lamp switch Fuse & relay box G203 (behind right kick panel) G300 (below left front seat) Glove compartment lamp Heater/ a/c switch Horn/airbag clock spring contact Instrument cluster Interior socket Kickdown switch Left electrically adjustable outside rear- view mirror Left front door central locking actuating motor Left front electric seat adjustment switch Left front seat cushion heater element Left front seat heater switch Left headlamp unit Left hinged window switch (not used) Left rear door central locking actuating motor Ml/c Mr/e Parking brake switch Radio Rear window wiper/ washer switch Right front door central locking actuating motor Right front seat heater switch Right headlamp unit Right hinged window switch (not used) Seat heater relay (stage 1) Srs control module Steering angle sensor (not used) Steering wheel Steering- lock switch Tan Transfer case control module Transfer case switch Transmission control module Transmission range recognition switch X18 X35/1 X35/2 X35/3 Ground Distribution Wiring Diagram (3 of 3) for Mercedes-Benz ML320 1998 List of elements for Ground Distribution Wiring Diagram (3 of 3) for Mercedes-Benz ML320 1998: 31 Cargo area connector box Center high mounted stop lamp Fuel pump Fuel tank support/ ground screw connection G301 (below right front seat) G302 (below center console) G404 (behind left rear side trim panel) G405 (behind right rear side trim panel) G412 (center of hatch door) Left license plate light Left spare wheel carrier license plate lamp Left taillamp unit Nca Right front electric seat adjustment switch Right front seat belt buckle/ belt lock switch Right front seat cushion heater element Right license plate light Right rear door central locking actuating motor Right spare wheel carrier license plate lamp Right taillamp unit Rotary tumbler/ trunk lid microswitch Seat heater relay (stage 1) Srs control module Statonary heater fuel metering pump (not used) Tailgate central locking actuating motor Tailgate window wiper motor Trailer hitch socket Trailer recognition microswitch W/ door mounted spare wheel W/o door mounted spare wheel X58
HEADLIGHTS Headlight Wiring Diagram (1 of 2) for Mercedes-Benz ML320 1998 List of elements for Headlight Wiring Diagram (1 of 2) for Mercedes-Benz ML320 1998: 47 (not used) 56a 56d 58l 58r 87a A11 Accy All activity module C/b C/d C/e Circuit relay Combination switch Exterior lights system Flash Fuse & relay box (left side of engine compt) Fuse 7.5a G203 (behind right kick panel) Hazard flasher switch Head Head park Headlamp flasher switch High Hot at all times Instrument cluster system Light switch Low Ml/a Mr/d Nca Off P/b P/e P30 Park Pnk Run Shorting clip Standing Start Starter switch Tan To instrument cluster (diagram 2 of 2) To left headlamp unit (diagram 2 of 2) To right headlamp unit (diagram 2 of 2) Turn signal switch Headlight Wiring Diagram (2 of 2) for Mercedes-Benz ML320 1998 List of elements for Headlight Wiring Diagram (2 of 2) for Mercedes-Benz ML320 1998: 28 All activity module C/e Double combination switch From fuse 34 (diagram 1 of 2) From fuse 5 (diagram 1 of 2) Front/rear fog lamp switch Fuse & relay box (left side of engine compt) Fuse 7.5a G106 (behind left headlamp) G107 (behind right headlamp) G203 (behind right kick panel) G404 (behind left rear side trim panel) High beam High beam indicator Hot at all times Indicator Instrument cluster Left headlamp unit Left taillamp unit Low beam P/e Pnk Rear fog lamp Rear fog lamp relay Right headlamp unit Tan Trailer hitch socket Z50/10
HORN Horn Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Horn Wiring Diagram for Mercedes-Benz ML320 1998: 18 All activity module (in left side of engine compt, in "e" box) C/b Fuse 20a Fuse & relay box (in left side of engine compartment, in "e" box) G106 (behind left headlamp) G107 (behind right headlamp) G203 (behind right kick panel) Horn switch Horn/ airbag clock spring contact Hot at all times Left two-tone horn Ml/a Mr/c Nca Right two-tone horn Steering wheel Tan Two-tone horn relay
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Instrument Cluster Wiring Diagram for Mercedes-Benz ML320 1998: 75 (behind right kick panel) 0 0 0 0 0 0:0 0 A10 A11 A13 A14 A15 A18 Abs mil All actitvity module B10 B11 Battery Brake indicator Brake wear indicator C/b C/c C/d C/e C/f Charge indicator Charging system Check engine mil Clock Clock set switch Computer data lines system Diagnostic module generic scan tool connector (below left side of dash) Early production Ecl switch (left rear of engine compt) Ect gauge Ets mil Exterior lights system Fuel gauge Fuel level sensor (on fuel tank) Fuse & relay box (left side of engine compt) Fuse 10a Fuse 15a Fuse 7.5a G107 (behind right headlamp) G203 G203 (behind right kick panel) High beam indicator Hot in run or start Hot in run, acc or start Hot with headlamps on Ignition key switch (part of starter switch) Instrument cluster Instrument illumination (3 bulbs) Instrument illumination (4 bulbs) Interior lights system Late production Left turn indicator Low oil indicator Low range indicator Ml/a Mr/e Not used Odometer Outside temperature indicator sensor (left side of front grille) Pnk Power distribution Red Rheostat Right turn indicator Seat belt indicator Speedo- meter Srs control module (below front of center console) Srs indicator Steering lock indicator Steering lock switch Tacho- meter Tan Trip odometer reset Warning buzzer
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Courtesy Lamps Wiring Diagram for Mercedes-Benz ML320 1998: 32 A10 All activity module (left side of engine compt, in e box) B4 c3 C/b Central locking micro- switch D/a Front dome lamp Fuse & relay box Fuse 10a G123 (right side of firewall) G203 (behind right kick panel) G300 (below left front seat) G301 (below right front seat) G412 (center of hatch door) Glove compartment lamp Hot at all times Hot off, acc, & run Left front door central locking actuating motor Left rear dome lamp Left rear door central locking actuating motor Left sun visor P/d Pnk Rear dome lamp Red Red b Right front door central locking actuating motor Right rear dome lamp Right rear door central locking actuating motor Right sun visor Rotary tumbler/ trunk lid micro- switch Tan Instrument Illumination Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Instrument Illumination Wiring Diagram for Mercedes-Benz ML320 1998: 35 (not used) A11 A13 C/e C11 C12 Center console switch group Cigar lighter Combination switch Double combination switch Flash Fuse & relay box Fuse 10a Fuse 7.5a G123 (right side of firewall) G203 (right kick panel) G300 (below left front seat) Head Heater/ a/c switch Hot at all times Illumina- tion Instrument cluster Instrument illumination rheostat Left front seat heater switch Light switch Off P/b P/e Park Radio Rear window wiper/ washer switch Red Right front seat heater switch Sliding/ pop-up roof switch Transmission range recognition switch
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 2) for Mercedes-Benz ML320 1998 List of elements for Power Distribution Wiring Diagram (1 of 2) for Mercedes-Benz ML320 1998: 78 (not used) 15c 15r A/c system, wiper/ washer system A10 Accy All activity module Anti-lock brakes system Battery C/a C/b C/c C/d C/e Cargo area connector Circuit relay Combination switch Cruise control system D/a Diagnostic module (obdii) generic scantool connector Early production Engine control module Engine controls system Engine controls system, anti-lock brakes system, transmissions system Exterior lights system From b fuse 18 (diagram 1 of 2) From c fuse 11 (diagram 1 of 2) Fuel pump Fuel pump relay Fuse & relay box Fuse 10a Fuse 15a Fuse 20a Fuse 25a Fuse 30a Fuse 40a Fuse 7.5a G123 (right side of firewall) Generator Headlights system Ignition key switch (closed with key in starter switch) Instrument cluster Instrument cluster (early production), (diagnostic module (obdii) generic scantool connector (late production) Instrument cluster, diagnostic module (obdii) generic scantool connector Interior lights system, trip computer control module Interior socket Late production M/a M/c Mirrors system Ml/a Mr/d Mr/e N49 Nca Off P/a P/b P/c P/d P/e Pnk Power tops system Red Run Sound systems Start Starter Starter relay Starter switch Tan To convenience relay (diagram 2 of 2) To fuse 10 (diagram 2 of 2) To fuse 20 (diagram 1 of 2) To fuse 21 (diagram 1 of 2) Trailer hitch socket Transfer case control module Wiper/ washer system Power Distribution Wiring Diagram (2 of 2) for Mercedes-Benz ML320 1998 List of elements for Power Distribution Wiring Diagram (2 of 2) for Mercedes-Benz ML320 1998: 71 (below left front seat) g300 (not used) 87a Air conditioning system Alarm horn relay All activity module Anti- theft system Blower relay C/b C/d C/e C/f C/g Central locking all doors lock relay Circuit relay Circulation pump relay Convenience relay Cooling fans system D/a Defogger system Door locks system Engine control systems Engine cooling fan stage 1 relay Exterior lights system From conven- e ience relay (diagram 2 of 2) From d fuse 22 (diagram 1 of 2) From starter switch (diagram 1 of 2) Front cigar lighter Front wiper motor relay Fuse & relay box Fuse 10a Fuse 15a Fuse 20a Fuse 25a Fuse 30a Fuse 40a Fuse 7.5a Horns system Instrument cluster system Interior lights system Interior lights system, trip computer control module Lamp Left front power window relay M/a Mirrors system, power tops system Ml/a Ml/b Mr/a Mr/c Mr/d Mr/f P/a P/b P/c P/d P/e P/f Pnk Power windows Rear fog Rear fog lamp relay Rear window defroster relay Right front power window relay Seats system Secondary air injection pump relay Sound systems system System Tan To alarm horn relay (diagram 2 of 2) Two-tone horn relay Wiper/ washer system
POWER DOOR LOCKS Power Door Lock Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Power Door Lock Wiring Diagram for Mercedes-Benz ML320 1998: 44 (behind right kick panel) g203 A10 Acc All activity module (left side of engine compt, in "e" box) All doors lock relay B11 Battery C/d C/e C/f Center console switch group Door ajar Door lock Door lock switch Fuel filler flap motor Fuse & relay box (left side of engine compt, in "e" box) Fuse 20a G203 (behind right kick panel) G300 (below left front seat) G300 (below left front seat) a G301 (below right front seat) G412 (center G412 (center of hatch door) Ignition switch Left front door & fuel filler flap unlock relay Left front door lock motor Left rear door lock motor Lock motor Of hatch door) Off P/d P/e Pnk Power distribution Red Right front door & rear doors unlock relay Right front door lock motor Right rear door lock motor Run Start Tailgate lock motor Tailgate unlock relay Tan Trunk lid micro switch
POWER MIRRORS Power Mirrors Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Power Mirrors Wiring Diagram for Mercedes-Benz ML320 1998: 17 Center console switch group Electrically adjustable front passenger outside mirror Fuse & relay box Fuse 15a G203 (behind right kick panel) G300 (below left front seat) Horizontal Hot at all times Hot in acc or run Left Left electrically adjustable outside mirror Mirror select switch (left/ right) P/c P/d Pnk Right Vertical
POWER SEATS Driver Heated Seat Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Driver Heated Seat Wiring Diagram for Mercedes-Benz ML320 1998: 22 (left side of engine compt, in e box) (left side of engine compt, in e box) all activity module B12 Fuse & relay box Fuse 20a G205 (behind right kick panel) G300 (below left front seat) Hot at all times Interior lights system Left front backrest heater element Left front seat cushion heater element Left front seat heater switch Nca Norm Off P/f Rapid Red Seat heater relay (stage 1) (on underside of left front seat) Seat heater relay (stage 2) (on underside of left front seat) Tan Tan e Driver Power Seat Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Driver Power Seat Wiring Diagram for Mercedes-Benz ML320 1998: 22 All activity module Backrest Convenience center Fore/ aft motor Front raise/ lower motor Front seat height Fuse & relay box Fuse 33 30a G300 (below left front seat) Hot at all times Left front electric seat adjustment switch Lower Nca P/c Pnk Raise Rear raise/ lower motor Rear seat height S22x1 Seat fore/aft Tan X54/1 Passenger Heated Seat Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Passenger Heated Seat Wiring Diagram for Mercedes-Benz ML320 1998: 23 (left side of engine compt, in e box) (left side of engine compt, in e box) all activity module B11 Fuse & relay box Fuse 20a G203 (behind right kick panel) G301 (below right front seat) Hot at all times Interior lights system Nca Norm Off P/f Pnk Pnk e Rapid Red Right front backrest heater element Right front seat cushion heater element Right front seat heater switch Seat heater relay (stage 1) (on underside of right front seat) Seat heater relay (stage 2) (on underside of right front seat) Tan Passenger Power Seat Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Passenger Power Seat Wiring Diagram for Mercedes-Benz ML320 1998: 22 All activity module Backrest Convenience center Fore/ aft motor Front raise/ lower motor Front seat height Fuse & relay box Fuse 32 30a G300 (below right front seat) Hot at all times Lower Nca P/c Pnk Raise Rear raise/ lower motor Rear seat height Right front electric seat adjustment switch S23x1 Seat fore/aft Tan X54/1
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagrams for Mercedes-Benz ML320 1998 List of elements for Power Top/Sunroof Wiring Diagrams for Mercedes-Benz ML320 1998: 13 Fuse & relay box (left side of engine compt) Fuse 15a Fuse 30a G123 (right side of firewall) Hot at all times Interior lights system P/b P/c Roof forward/ backward Roof raise/ lower Sliding/ pop-up roof drive assembly Sliding/ pop-up roof switch Tan
POWER WINDOWS Power Window Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Power Window Wiring Diagram for Mercedes-Benz ML320 1998: 32 0 off 1 close 2 open 0 off 1 close 2 open 3 exp down 4 lock 5 unlock 87a A11 All activity module B10 Center console switch group Convenience relay Fuse & relay box (left side of engine compt) Fuse 30a G300 (below left front seat) Hot at all times Left front power Left front power window motor Left front power window relay Left rear Left rear power window motor P/b P/d P/e Pnk Power window combination switch (rear center console) Power window switch Right front power Right front power window motor Right front power window relay Right rear Right rear power window motor Tan Window switch X35/3 X35/4
RADIO Radio Wiring Diagrams, Premium Radio for Mercedes-Benz ML320 1998 List of elements for Radio Wiring Diagrams, Premium Radio for Mercedes-Benz ML320 1998: 36 A10 A11 A12 Acoustimass bass module (under driver's seat) Antenna splitter (on right side of liftgate) Audio amplifier (behind left side of dash) B10 B11 B12 Cd changer Coax Defoggers system Fm/am amplifier (in liftgate, behind trim) Fuse & relay box Fuse 10 10a Fuse 21 20a G203 (behind right kick panel) G412 (center of hatch door) Hot at all times Hot in off, acc or run Interior lights system Left antenna coil Left front door speaker group Left rear door speaker P/b P/d Pnk Pnk a Radio Rear window defroster element Red Red b Right antenna coil Right front door speaker group Right rear door speaker Tan Radio Wiring Diagrams, Standard for Mercedes-Benz ML320 1998 List of elements for Radio Wiring Diagrams, Standard for Mercedes-Benz ML320 1998: 30 Antenna splitter (on right side of liftgate) Cd changer Coax Defoggers system Fm/am amplifier (in liftgate, behind trim) Fuse & relay box Fuse 10 10a Fuse 21 20a G203 (behind right kick panel) G412 (center of hatch door) Hot at all times Hot in off, acc or run Interior lights system Left antenna coil Left front door speaker group Left rear door speaker P/b P/d Pnk Pnk (nca) Pnk (or nca) Pnk a Radio Rear window defroster element Red Red b Right antenna coil Right front door speaker group Right rear door speaker Tan
SHIFT INTERLOCKS Shift Interlock Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Shift Interlock Wiring Diagram for Mercedes-Benz ML320 1998: 7 Computer data lines system Fuse & relay box (left side of eng compt) Fuse 22 10a Hot in run or start Pnk R/p lock solenoid (right side of shift assembly) Transmission control module (behind center of dash)
STARTING/CHARGING Charging Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Charging Wiring Diagram for Mercedes-Benz ML320 1998: 15 (1998) (1999) Battery C/e c/c C/f Charge indicator Fuse & relay box Fuse & relay box (left side of eng compt) Fuse 22 (1998) fuse 16 (1999) 15a G123 (right side of firewall) Generator Hot in run or start Instrument cluster Mr/e Red Starter Starting Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Starting Wiring Diagram for Mercedes-Benz ML320 1998: 24 (left side of engine compt) 1998 early production 1998 late production and Acc Battery C/e Engine control module (me-sfi) Fuse & relay box Fuse & relay box (left side of engine compt) G123 (right side of firewall) Generator Hot in run or start Ignition switch M/c Mr/e Off P/a Pnk Red Run Start Starter Starter relay Tan
SUPPLEMENTAL RESTRAINTS Supplemental Restraint Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Supplemental Restraint Wiring Diagram for Mercedes-Benz ML320 1998: 32 (below left side of dash) diagnostic module scan tool connector A11 A15 All activity module (left side of engine compt, in "e" box) Automatic child seat recognition sensor C/b C/c C3 b6 Driver airbag squib Driver etr squib Fuse & relay box (left side of engine compt, in "e" box) Fuse 10a G300 (below left front seat) G301 (below right front seat) G302 (below center console, on srs mounting bolt) Horn/ airbag clock spring contact Hot at all times Hot in run, acc or start Instrument cluster Left front seat belt buckle switch Left side airbag squib Nca Not used P/b Passenger airbag squib Passenger etr squib Pnk Red Right front seat belt buckle switch Right side airbag squib Seat belt warning indicator Srs warning indicator
TRANSMISSION 4WD Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for 4WD Wiring Diagram for Mercedes-Benz ML320 1998: 38 A11 B10 Battery Can h Can l Computer data lines system Double combination switch Fuse & relay box (left side of engine compt) Fuse 10a Fuse 15a Fuse 25a G203 (right kick panel) G300 (under driver seat) Ground High/low Hot at all times Hot in run or start Ignition Illum Instrument cluster Interior lights system Low range Low range ind Low/high Nca P/c P/d Pnk Position 1 Position 2 Position 3 Position 4 Red Return Tan Transfer case control module (behind shift assembly) Transfer case range selection motor (left rear of transfer case) Transfer case switch A/T Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for A/T Wiring Diagram for Mercedes-Benz ML320 1998: 52 (right rear of engine compt) (right side of shift assembly) r/p lock valve 1-2/ 4-5 valve 1-2/4-5 vlv 2-3 shift valve 2-3 vlv 3-4 shift valve 3-4 vlv Base of shift assembly) Can (+) Can (-) Computer data lines system Data a Data b Data c Data d Data line Data link connector Engine control module (left side of engine compt) Fuse & relay box (left side of engine compt) Fuse 15a G203 (right kick panel) G300 (under driver seat) Ground Hot in run or start Ignition Illum Interior lights system Kickdown sw Kickdown switch (below accelerator pedal) Lock up valve Modu- lator valve Modulator vlv Nca P/d P/n Pnk Pwm vlv R/p lock sol Rpm 2 Rpm 3 Rpm sensor Sensor rtn Shift valve Shift vlv Start interlock switch Tan Temp sensor Temp/start Transmission control module (behind center of dash) Transmission range recognition switch (under center console, at Valve unit (electronic transmission control)
WIPER/WASHER Front Wiper/Washer Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Front Wiper/Washer Wiring Diagram for Mercedes-Benz ML320 1998: 32 (behind right headlamp) g107 Acc All activity module (left side of engine compt) Battery C/b C/d C/f Combination switch Front wiper motor relay Fuse & relay box (left side of engine compt, in "e" box) Fuse 15a G106 (behind left headlamp) G123 (right side of firewall) Hot in off, acc or run Ignition switch Int Ml/a Mr/a Mr/d Mr/e Off Power distribution Red Run Start Tan Wash Washer switch Windshield washer pump Windshield wiper motor Wipe Wiper switch Rear Wiper/Washer Wiring Diagram for Mercedes-Benz ML320 1998 List of elements for Rear Wiper/Washer Wiring Diagram for Mercedes-Benz ML320 1998: 31 470 ohm Acc All activity module (left side of engine compt) Battery C/c C/d C/f Fuse & relay box (left side of engine compt, in "e" box) Fuse 15a Fuse 7.5a G106 (behind left headlamp) G123 (right side of firewall) G412 (center of hatch door) Hot in run Ignition switch Interior lights Ml/c Mr/b Mr/d Mr/e Off P/b Power distribution Rear window washer pump Rear window wiper/ washer switch Red Run Start Tailgate window wiper motor Tan Wash
