Mercedes-Benz ML430 1999 - 1999 MERCEDES-BENZ ML320 & ML430

Mercedes-Benz ML430 1999 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz ML430 1999 BUZZERS, RELAYS & TIMERS

Component	Component Location
Alarm Horn Relay	In left side of engine compartment, in fuse & relay box.
Blower Motor Relay	In left side of engine compartment, in fuse & relay box.
Central Locking, All Doors Lock Relay	In left side of engine compartment, in fuse & relay box.
Central Locking, Left Front Door & Fuel Filler Flap Unlock Relay	In left side of engine compartment, in fuse & relay box.
Central Locking, Right Front Door & Rear Doors Unlock Relay	In left side of engine compartment, in fuse & relay box.
Central Locking, Tailgate Unlock Relay	In left side of engine compartment, in fuse & relay box.
Circuit 15 Relay	In left side of engine compartment, in fuse & relay box.
Circuit 58 Relay	In left side of engine compartment, in fuse & relay box.
Circuit 58L Relay (W/ DRL)	In left side of engine compartment, in fuse & relay box.
Circuit 58R Relay (W/ DRL)	In left side of engine compartment, in fuse & relay box.
Circulation Pump Relay	In left side of engine compartment, in fuse & relay box.
Convenience Relay	In left side of engine compartment, in fuse & relay box.
Engine Cooling Fan Stage 1 Relay	In left side of engine compartment, in fuse & relay box.
ESP Stoplight Suppression Relay	In left side of engine compartment, in fuse & relay box.
Front Foglight Relay	In left side of engine compartment, in fuse & relay box.
Front Wiper Motor Relay	In left side of engine compartment, in fuse & relay box.
Fuel Pump Relay	In left side of engine compartment, in fuse & relay box.
High Pressure/Return Pump Relay	In left side of engine compartment, in fuse & relay box.
Left Front Power Window Relay	In left side of engine compartment, in fuse & relay box.
Left Turn Signal Relay	In left side of engine compartment, in fuse & relay box.
Low Beam Headlamp Relay (W/ DRL)	In left side of engine compartment, in fuse & relay box.
Rear Foglight Relay	In left side of engine compartment, in fuse & relay box.
Rear Window Defroster Relay	In left side of engine compartment, in fuse & relay box.
Right Front Power Window Relay	In left side of engine compartment, in fuse & relay box.
Right Turn Signal Relay	In left side of engine compartment, in fuse & relay box.
Seat Heater Relay (Stage 1)	On underside of left/right front seat.
Seat Heater Relay (Stage 2)	On underside of left/right front seat.
Secondary Air Injection Pump Relay	In left side of engine compartment, in fuse & relay box.
Starter Relay	In left side of engine compartment, in fuse & relay box.
Two-Tone Horn Relay	In left side of engine compartment, in fuse & relay box.

Mercedes-Benz ML430 1999 - CIRCUIT PROTECTION DEVICES

Mercedes-Benz ML430 1999 CIRCUIT PROTECTION DEVICES

Component	Component Location
"E" Box	In left side of engine compartment.
Fuse & Relay Box	In left side of engine compartment, in "E" box. See Fig. 1 .

Mercedes-Benz ML430 1999 - CONTROL UNITS

Mercedes-Benz ML430 1999 CONTROL UNITS

Component	Component Location
Acoustimass Bass Module	Under driver's seat. See Fig. 1 .
All Activity Module (AAM)	In left side of engine compartment, in "E" box. See Fig. 1 .
ASR/ETS/ESP Hydraulic Unit	In left side of engine compartment, below washer bottle.
ATA Control Module	At right rear of engine compartment.
Engine Control Module (ME-SFI)	In left side of engine compartment, in "E" box. See Fig. 1 .
ESP/SPS/BAS Control Module	In left side of engine compartment, in "E" box.
ETC Control Module	Behind center of dash. See Fig. 1 .
MB-Immobilizer Control Module	In top right side of steering column. See Fig. 1 .
SRS Control Module	Below front of center console. See Fig. 1 .
Traction System Control Module	In left side of engine compartment in "E" box. See Fig. 1 .
Trailer Turn Signal Control Module	Integral to trailer harness.
Transfer Case Control Module	Below center console, behind shift assembly. See Fig. 1 .
Trip Computer Control Module	In front of roof.

Mercedes-Benz ML430 1999 - MOTORS

Mercedes-Benz ML430 1999 MOTORS

Component	Component Location
Blend Air Flap Actuator Motor	Behind right side of dash.
Blower Motor	Under right side of dash.
Coolant Circulation Pump	In right rear of engine compartment.
Electric Air Pump	On center front of engine.
Filler Flap CL Actuating Motor	In left rear cargo area, behind trim.
Fuel Pump	In top of fuel tank.
Module Box Blower Motor	In left side of engine compartment, in "E" box.
Rear Wall Door Washer Pump	In left side of engine compartment, on side of washer fluid reservoir.
Tailgate Window Wiper Motor	In liftgate, behind trim.
Transfer Case Range Selection Motor	On left rear of transfer case.
Windshield Washer Pump	In left front of engine compartment, on washer fluid reservoir.
Wiper Motor	At left rear of engine compartment, under plenum cover.

Mercedes-Benz ML430 1999 - SENDING UNITS & SENSORS

Mercedes-Benz ML430 1999 SENDING UNITS & SENSORS

Component	Component Location
ABS Lateral Acceleration Sensor	Below center console, behind shift assembly.
Camshaft Hall Effect Sensor	On right front of engine.
Crankshaft Position (CKP) Sensor	On left rear of engine.
ECT Sensor	On center front of engine.
ESP Brake Pressure Sensor No. 1	In left rear of engine compartment.
ESP Brake Pressure Sensor No. 2	In left rear of engine compartment.
Freeze Protection Temperature Sensor	Behind right side of dash, in evaporator.
Fuel Tank Emissions Monitoring Pressure Sensor	In left rear side of cargo area, behind trim on fuel filler pipe.
Hot Film MAF Sensor	In right side of engine compartment.
In-Car Temperature Sensor	Behind center of dash.
Knock Sensor No. 1 (KS 1)	On right side of engine, below intake manifold.
Knock Sensor No. 2 (KS 2)	On left side of engine, below intake manifold.
Left Front Brake Pad Wear Sensor	Behind left front wheel.
Left Front VSS	Behind left front wheel.
Left Rear Brake Pad Wear Sensor	Behind left rear wheel.
Left Rear VSS	Behind left rear wheel.
Membrane Travel Sensor	Integral to brake booster.
Oil Sensor	On lower right front of engine.
Outside Temperature Indicator Temperature Sensor	Behind left side of front grille.
Oxygen Sensor (O2S 1) (Left) (Before TWC)	Under left side of vehicle, in left exhaust downpipe.
Oxygen Sensor (O2S 2) (Left) (After TWC)	Under left side of vehicle in left exhaust pipe.
Oxygen Sensor (O2S 1) (Right) (Before TWC)	Under right side of vehicle, in right exhaust downpipe.
Oxygen Sensor (O2S 2) (Right) (After TWC)	Under right side of vehicle in right exhaust pipe.
Pedal Value Sensor	In left rear corner of engine compartment.
Pressure Sensor	On right front of engine.
Refrigerant Pressure Sensor	In left front of engine compartment.
Right Front VSS	Behind right front wheel.
Right Rear VSS	Behind right rear wheel.
Steering Angle Sensor	Below driver's side of dash.
Yaw Rate Sensor	Below center console, behind shift assembly.

Mercedes-Benz ML430 1999 - SOLENOIDS & SOLENOID VALVES

Mercedes-Benz ML430 1999 SOLENOIDS & SOLENOID VALVES

Component	Component Location
Activated Charcoal Canister Shutoff Valve	Under rear of vehicle, above spare wheel.
AIR Pump Switchover Valve	On right front of engine.
EGR Switchover Valve	On top rear of engine.
Purge Control Valve	In left rear corner of engine compartment.
R/P Lock Valve	Below center console, in right side of shift assembly.
Resonance Intake Manifold Switchover Valve	On top center front of engine.
Solenoid Valve (BAS)	Integral to brake booster.
Throttle Valve Setting Element	On center rear of engine.
Valve Unit (ETC)	In transmission.

Mercedes-Benz ML430 1999 - SWITCHES

Mercedes-Benz ML430 1999 SWITCHES

Component	Component Location
Back-Up Light Switch	Under center console, at base of shift assembly.
Brake Fluid Level Switch	In brake fluid reservoir.
Electronic ECL Switch	In left rear of engine compartment.
Engine Hood Switch (ATA)	In left rear corner of engine compartment.
Kickdown Switch	Below accelerator pedal.
Left Front Seat Belt Buckle Switch	In driver's seat belt buckle.
Parking Brake Switch	On parking brake support bracket.
Passenger's Seat Belt Switch	In passenger's seat belt buckle.
Release Switch (BAS)	Integral to brake booster.
Right Front Seat Belt Buckle Switch	In passenger's seat belt buckle.
Rotary Tumbler Trunk Lid Microswitch	Part of tailgate latch assembly.
Stoplight Switch	On brake pedal support.
Transmission Range Recognition Switch	Under center console, at base of shift assembly.

Mercedes-Benz ML430 1999 - MISCELLANEOUS

Mercedes-Benz ML430 1999 MISCELLANEOUS

Component	Component Location
Alarm Horn	In left rear corner of engine compartment.
Antenna Coil (Left)	At left side of rear window, behind trim.
Antenna Coil (Right)	At right side of rear window, behind trim.
Antenna Splitter	On right side of liftgate.
Audio Amplifier	Behind left side of dash.
Blower Motor Preresistor Group	Under right side of dash, in blower assembly.
Data Link Connector (DLC)	Below left side of dash.
Diagnostic Module (OBD II) Scan Tool Connector	Below left side of dash.
Driver's ETR Squib	On base of left "B" pillar, behind trim.
FM/AM Amplifier	In liftgate, behind trim.
Front Passenger ETR Squib	On base of right "B" pillar, behind trim.
Low Beam Headlight Relay Shorting Clip	In left side of engine compartment, in fuse & relay box.
Recirculated Air Flap Element	Behind right side of dash.
Transponder Coil	Top right side of steering column, on ignition switch.

Mercedes-Benz ML430 1999 - CONNECTORS

Mercedes-Benz ML430 1999 CONNECTORS

Component	Component Location
X11/4 (Black, 16-Pin)	Below driver's side of dash.
X18 (Orange, 28-Pin)	Behind left side of dash.
X18/1 (Black, 9-Pin)	In tailgate, behind trim.
X18/2 (Black, 6-Pin)	Left side of engine compartment, in "E" box.
X18/3 (Black, 10-Pin)	Right rear of vehicle, behind rear tire.
X18/5 (Black, 3-Pin)	Left rear cargo area (trim removed).
X18/6 (Black, 3-Pin)	Left rear cargo area, behind trim.
X18/7 (Black, 9-Pin)	Left side of engine compartment, in "E" box.
X18/10 (White, 2-Pin)	Left side of engine compartment, in "E" box.
X18/11 (Black, 2-Pin)	Lower left front of engine compartment, behind headlamp.
X18/12 (Red, 2-Pin)	Left side of engine compartment, in "E" box.
X18/18 (Black, 10-Pin)	Behind center of dash.
X18/29 (Gray, 6-Pin)	Left side of engine compartment, in "E" box.
X18/30 (Black, 8-Pin)	Left side of engine compartment, in "E" box.
X22 (Black, 16-Pin)	Left side of engine compartment, in "E" box.
X22/2 (Black, 13-Pin)	Right front of transmission, on bell housing.
X28/13 (Black, 2-Pin)	Underside of left/right front seat.
X33/19 (Green, 2-Pin)	Left side of engine compartment, in "E" box.
X35/1 (Black, 20-Pin)	Front of left front door.
X35/2 (Black, 20-Pin)	Front of right front door.
X35/3 (Black, 20-Pin)	Front of left rear door.
X35/4 (Black, 20-Pin)	Front of right rear door.
X36/4 (Black, 1-Pin)	Left rear cargo area, behind trim.
X52 (Black, 16-Pin)	Left rear cargo area, behind trim.
X54/1 (Red, 2-Pin)	Underside of left/right front seat.
X54/9 (White, 2-Pin)	Under left/right front seat.
X54/10 (Green, 2-Pin)	Underside of left/right front seat.
X54/20 (Black, 2-Pin)	Rear of left/right front seat back, behind trim.
X55/3 (Black, 16-Pin)	Underside of driver's seat.
X55/4 (Black, 16-Pin)	Underside of passenger's seat.
X58 (Black, 13-Pin)	On rear bumper.
X58/3 (Green, 2-Pin)	Behind center of dash.
X58/4 (White, 2-Pin)	Right rear cargo area.
X58s1 (Green, 2-Pin)	Rear of vehicle, in trailer connector.
X88/17 (Black, 2-Pin)	Left side of engine compartment, in "E" box.

Mercedes-Benz ML430 1999 - GROUNDS

Mercedes-Benz ML430 1999 GROUNDS

Component	Component Location
W2	Lower right front of engine compartment, behind headlight. See Fig. 1 .
W6	Left rear cargo area, behind trim. See Fig. 1 .
W7	Right rear cargo area, behind trim. See Fig. 1 .
W8	On tailgate, behind trim.
W9	Behind right headlight. See Fig. 1 .
W11/3	Top center front of engine.
W16	Left rear corner of engine compartment. See Fig. 1 .
W16/4	Right rear of engine compartment. See Fig. 1 .
W18	Under driver's seat, below carpet. See Fig. 1 .
W19	Under right front seat, below carpet. See Fig. 1 .
W26	Under center console, on SRS mounting bolt. See Fig. 1 .
W29/2	Below passenger's side of dash, behind kick panel. See Fig. 1 .

Mercedes-Benz ML430 1999 - SPLICES

Mercedes-Benz ML430 1999 SPLICES

Component	Component Location
Z3/29a	In motor harness, under plastic harness channel.
Z3/29	In motor harness, left side of engine, under plastic harness channel.
Z3/29	In motor harness, left rear of engine compartment.
Z3/29b	In motor harness, in "E" box.
Z7/5	In motor harness, left rear of engine compartment.
Z7/35	In motor harness, left side of engine, under plastic harness channel.
Z7/35a	In motor harness, left side of engine, under plastic harness channel.
Z7/35b	In motor harness, left side of engine, under plastic harness channel.
Z7/36	In motor harness, left side of engine, under plastic harness channel.
Z50/1	In dash harness, behind instrument cluster, near breakout for instrument cluster connector.
Z50/2	In dash harness, center, near breakout for A/C control module.
Z50/3	In dash harness, in breakout harness for passenger harness to dash harness interconnect.
Z50/4	In dash harness, right side, near breakout for icing sensor.
Z50/5	In dash harness, behind instrument cluster, between breakouts for parking brake switch & stoplamp switch.
Z50/6	In dash harness, behind instrument cluster.
Z50/10	In dash harness, behind instrument cluster.
Z50/11	In dash harness, behind instrument cluster.
Z50/12	In dash harness, behind instrument cluster
Z50/13	In dash harness, in breakout harness for passenger harness to dash harness interconnect.
Z50/14	In dash harness, near breakout for parking brake switch.
Z50/16	In dash harness, near breakout for parking brake switch.
Z50/17	In dash harness, near breakout for parking brake switch.
Z50/18	In dash harness, near breakout for parking brake switch.
Z51/1	In passenger harness, under center of dash, between breakouts for kickdown switch & N15/3.
Z51/2	In passenger harness, under center of dash, between breakouts for kickdown switch & N15/3.
Z51/3	In passenger harness, left side of engine compartment, in "E" box.
Z51/4	In passenger harness, left side of engine compartment, in "E" box.
Z51/5	In passenger harness, under front of center console, near breakout for radio & SRS control module.
Z51/6	In passenger harness, under center console, in harness breakout for transmission range recognition switch.
Z51/7	In passenger harness, under center console, in harness breakout for center console switch assembly.
Z51/8	In passenger harness, under passenger's side of dash.
Z51/9	In passenger harness, under left front seat, near breakout for W18.
Z51/10	In passenger harness, in breakout for left front seat adjustment auxiliary fuse.
Z52/1	In passenger harness, under right front seat, near breakout for W19.
Z52/2	In passenger harness, left rear of vehicle, near breakout for trailer connector X52.
Z52/4	In passenger harness, under center console, in main harness breakout for right side of vehicle.
Z52/5	In passenger harness, left rear of vehicle, near breakout for tailgate harness.
Z52/6	In passenger harness, left rear of vehicle, near breakout for tailgate harness.
Z52/7	In passenger harness, left side of engine compartment, in "E" box.
Z52/9	In passenger harness, under center console, in main harness breakout for right side of vehicle.
Z52/10	In passenger harness, in harness breakout for dash connector X18.
Z52/11	In passenger harness, in harness breakout for dash connector X18.
Z53/1	In passenger harness, under center console, in main breakout for left side of vehicle.
Z53/2	In passenger harness, under center console, in main breakout for left side of vehicle.
Z53/3	In passenger harness, under center console, in main breakout for left side of vehicle.
Z53/4	In passenger harness, left rear of cargo area, near breakout for trailer connector.
Z53/5	In passenger harness, under center console, in main harness breakout for right side of vehicle.
Z53/6	In passenger harness, left rear of cargo area, near breakout for trailer connector X52.
Z53/7	In passenger harness, in harness breakout for dash connector X18.
Z53/8	In passenger harness, under center console, in main breakout for right side of vehicle.
Z53/9	In passenger harness, under center console in plastic harness channel.
Z54/1	Headliner harness, near breakout for left rear dome lamp.
Z54/2	Headliner harness, near breakout for sliding/pop-up roof assembly.
Z54/3	Headliner harness, near breakout for sliding/pop-up roof assembly.
Z54/5	Headliner harness, in breakout harness to rear dome lamp.
Z55/1	Tailgate harness, in breakout for W8 & trunk lid microswitch.
Z55/2	Tailgate harness, near breakout for tailgate CL actuating motor, rear wiper motor & license plate lamps.
Z56/1	Lower left front of engine compartment, behind headlamp.
Z56/2	Lower left front of engine compartment, behind headlamp.
Z56/4	Lower left front of engine compartment, behind headlamp.
Z57/1	Lower right front of engine compartment, behind headlamp.
Z57/2	Left side of engine compartment, in "E" box.
Z57/3	Right engine harness, near breakout for wiper motor.

Mercedes-Benz ML430 1999 - COMPONENT LOCATION GRAPHICS

NOTE:

Fig.res may show multiple component locations. - appropriate table for proper figure references.

Fig. 1: Mercedes-Benz ML430 1999 - Component Locations - Vehicle Overview