Mercedes-Benz ML55 2000 - 2000 MERCEDES-BENZ ML55

Mercedes-Benz ML55 2000 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz ML55 2000 BUZZERS, RELAYS & TIMERS LOCATION

Component	Component Location
Alarm Horn Relay	At left side of engine compartment, on fuse & relay box.
All Doors Lock Relay	At left side of engine compartment, on fuse & relay box.
Blower Motor Relay	At left side of engine compartment, on fuse & relay box.
Circuit 15 Relay	At left side of engine compartment, on fuse & relay box.
Circuit 15 Delayed Relay	At left side of engine compartment, on fuse & relay box.
Circuit 58 Relay	At left side of engine compartment, on fuse & relay box.
Circuit 58L Relay	At left side of engine compartment, on fuse & relay box.
Circuit 58R Relay	At left side of engine compartment, on fuse & relay box.
Circulation Pump Relay	At left side of engine compartment, on fuse & relay box.
Convenience Relay	At left side of engine compartment, on fuse & relay box.
Engine Cooling Fan Stage 1 Relay	At left side of engine compartment, on fuse & relay box.
ESP Stoplight Suppression Relay	At left side of engine compartment, on fuse & relay box.
Front Foglight Relay	At left side of engine compartment, on fuse & relay box.
Front Wiper Motor Relay	At left side of engine compartment, on fuse & relay box.
Fuel Pump Relay	At left side of engine compartment, on fuse & relay box.
Headlight Cleaning System Relay	On right front footwell fuse & relay box.
Heated Rear Window Relay	On right front footwell fuse & relay box.
High Pressure/Return Pump Relay	At left side of engine compartment, on fuse & relay box.
Left Front Door & Fuel Filler Flap Unlock Relay	At left side of engine compartment, on fuse & relay box.
Left Front Power Window Relay	At left side of engine compartment, on fuse & relay box.
Left Turn Signal Relay	At left side of engine compartment, on fuse & relay box.
Low Beam Headlight Relay	At left side of engine compartment, on fuse & relay box.
Rear Foglight Relay	At left side of engine compartment, on fuse & relay box.
Right Front Door & Rear Doors Unlock Relay	At left side of engine compartment, on fuse & relay box.
Right Front Power Window Relay	At left side of engine compartment, on fuse & relay box.
Right Turn Signal Relay	At left side of engine compartment, on fuse & relay box.
Seat Comfort Relay	On right front footwell 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	At left side of engine compartment, on fuse & relay box.
Starter Relay	At left side of engine compartment, on fuse & relay box.
Tailgate Unlock Relay	At left side of engine compartment, on fuse & relay box.
Two-Tone Horn Relay	At left side of engine compartment, on fuse & relay box.

Mercedes-Benz ML55 2000 - CIRCUIT PROTECTION DEVICES

Mercedes-Benz ML55 2000 CIRCUIT PROTECTION DEVICES LOCATION

Component	Component Location
E-Box	At left side of engine compartment.
Fuse & Relay Box	At left side of engine compartment, in E-Box. See Fig. 1 .
Right Front Footwell Fuse & Relay Box	Behind right kick panel. See Fig. 1 .

Mercedes-Benz ML55 2000 - CONTROL UNITS

Mercedes-Benz ML55 2000 CONTROL UNITS LOCATION

Component	Component Location
Acoustimass Bass Module	Under driver's seat. See Fig. 1 .
All Activity Module (AAM)	At left side of engine compartment, in E-Box. See Fig. 1 .
ASR/ETS/ESP Hydraulic Unit	At left side of engine compartment, below washer bottle.
Electronic Selector Lever Control Module	Under center console, at base of selector lever assembly.
Engine Control Module (ME-SFI)	At left side of engine compartment, in E-Box. See Fig. 1 .
ESP/SPS/BAS Control Module	At left side of engine compartment, in E-Box. See Fig. 1 .
ETC Control Module	Behind center of dash. See Fig. 1 .
Extended Activity Module	Behind left side of dash.
Global Positioning System Control Module	At center of dash.
Headlight Range Adjustment Control Module.	Behind left side of dash.
MB-Immobilizer Control Module	At top right side of steering column. See Fig. 1 .
Left ESA Control Module	Under left front seat.
Left Xenon Headlight Control Module	Behind left headlight.
Left Xenon Headlight Ignition Module	Behind left headlight.
Rear A/C Electronic Blower Regulator	Below center console.
Right ESA Control Module	Under right front seat.
Right Xenon Headlight Control Module	Behind right headlight.
Right Xenon Headlight Ignition Module	Behind right headlight.
SRS Control Module	Below front of center console. 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	At front of roof.

Mercedes-Benz ML55 2000 - MOTORS

Mercedes-Benz ML55 2000 MOTORS LOCATION

Component	Component Location
Blend Air Flap Actuator Motor	Behind right side of dash.
Blower Motor	Under right side of dash.
Coolant Circulation Pump	At right rear of engine compartment.
Electric Air Pump	On center front of engine.
Filler Flap Actuating Motor	At left rear cargo area, behind trim.
Fuel Pump	At top of fuel tank.
Headlight Washer Pump	At left front of engine compartment, on side of washer fluid reservoir.
In-Car Temperature Sensor Aspirator Blower	Behind center of dash.
Module Box Blower Motor	At left side of engine compartment, in E-Box.
Tailgate Window Washer Pump	At 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	At left front of engine compartment, on washer fluid reservoir.
Wiper Motor	At left rear of engine compartment, under plenum cover.

Mercedes-Benz ML55 2000 - SENDING UNITS & SENSORS

Mercedes-Benz ML55 2000 SENDING UNITS & SENSORS LOCATION

Component	Component Location
ABS Lateral Acceleration Sensor	Below center console, behind shift assembly.
Camshaft Hall Effect Sensor	On right front of engine.
Crankshaft Position Sensor	On left rear of engine.
Engine Coolant Temperature Sensor	On center front of engine.
ESP Brake Pressure Sensor No. 1	At left rear of engine compartment.
ESP Brake Pressure Sensor No. 2	At left rear of engine compartment.
Freeze Protection Temperature Sensor	Behind right side of dash, in evaporator.
Front Axle Sensor	Behind right front wheel.
Fuel Level Sensor	On top of fuel tank.
Fuel Tank Emissions Monitoring Pressure Sensor	At left rear side of cargo area, behind trim on fuel filler pipe.
Hot Film Mass Airflow Sensor	At right side of engine compartment.
In-Car Temperature Sensor	Behind center of dash.
Knock Sensor No. 1	On right side of engine, below intake manifold.
Knock Sensor No. 2	On left side of engine, below intake manifold.
Left Front Brake Pad Wear Sensor	Behind left front wheel.
Left Front Vehicle Speed Sensor	Behind left front wheel.
Left Oxygen Sensor (After Catalytic Converter)	Under left side of vehicle in left exhaust pipe.
Left Heated Oxygen Sensor (Before Catalytic Converter)	Under left side of vehicle, in left exhaust downpipe.
Left Rear Brake Pad Wear Sensor	Behind left rear wheel.
Left Rear Vehicle Speed Sensor	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.
Outside Temperature Sensor (A/C)	Behind lower right side of dash.
Pedal Value Sensor	At left rear corner of engine compartment.
Pressure Sensor	On right front of engine.
Refrigerant Pressure Sensor	At left front of engine compartment.
Rear Axle Sensor	Behind right rear wheel.
Right Front Brake Pad Wear Sensor	Behind right front wheel.
Right Heated Oxygen Sensor (After Catalytic Converter)	Under right side of vehicle, in right exhaust downpipe.
Right Heated Oxygen Sensor (Before Catalytic Converter)	Under right side of vehicle in right exhaust pipe.
Right Front Vehicle Speed Sensor	Behind right front wheel.
Right Rear Brake Pad Wear Sensor	Behind right rear wheel.
Right Rear Vehicle Speed Sensor	Behind right rear wheel.
Steering Angle Sensor	Below driver's side of dash.
Sun Sensor	At top of dash.
Yaw Rate Sensor	Under center console, behind shift assembly.

Mercedes-Benz ML55 2000 - SOLENOIDS & SOLENOID VALVES

Mercedes-Benz ML55 2000 SOLENOIDS & SOLENOID VALVES LOCATION

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	At left rear corner of engine compartment.
Shifting Induction Pipe Switchover Valve	On top center front of engine.
Solenoid Valve	Integral to brake booster.
Throttle Valve Control Element	On center rear of engine.
Transmission Valve Unit	In transmission.

Mercedes-Benz ML55 2000 - SWITCHES

Mercedes-Benz ML55 2000 SWITCHES LOCATION

Component	Component Location
Back-Up Light Switch	On right side of transmission.
Brake Fluid Level Switch	At brake fluid reservoir.
Electronic ECL Switch	At left rear of engine compartment.
Engine Hood Switch	At left rear corner of engine compartment.
Kickdown Switch	Below accelerator pedal.
Parking Brake Switch	On parking brake support bracket.
Release Switch (BAS)	Integral to brake booster.
Stoplight Switch	On brake pedal support.
Temperature Regulator Microswitch	Behind right side of dash.

Mercedes-Benz ML55 2000 - MISCELLANEOUS

Mercedes-Benz ML55 2000 MISCELLANEOUS LOCATION

Component	Component Location
Alarm Horn	At left rear corner of engine compartment.
Alarm Siren W/Auxiliary Battery	At left rear corner of engine compartment.
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.
CD Changer	At right side of luggage compartment, behind trim panel.
Data Link Connector	Below left side of dash.
Diagnostic Module (OBD II) Scan Tool Connector	Below left side of dash.
FM/AM Amplifier	In liftgate, behind trim.
Left Antenna Coil	At left side of rear window, behind trim.
Recirculated Air Flap Element	Behind right side of dash.
Right Antenna Coil	At right side of rear window, behind trim.
Transponder Coil	Top right side of steering column, on ignition switch.

Mercedes-Benz ML55 2000 - CONNECTORS

Mercedes-Benz ML55 2000 CONNECTORS LOCATION

Component	Component Location
X18 (Orange, 28 Pin)	Behind left side of dash. See Fig. 3 .
X18/1 (Black, 9 Pin)	In liftgate, behind trim.
X18/A_B (Black, 16 Pin)	At right front footwell.
X18/2(1) (Black, 10 Pin)	In E-Box.
X18/2(2) (4 Pin)	In E-Box.
X18/2(3) (Black, 6 Pin)	In E-Box.
X18/3 (Black, 10 Pin)	Behind right rear tire.
X18/5 (Black, 3 Pin)	At left rear of cargo area, under trim.
X18/6 (Black, 3 Pin)	At left rear of cargo area, under trim.
X18/7 (Black, 9 Pin)	In E-Box.
X18/10 (White, 2 Pin)	In E-Box.
X18/11 (Black, 2 Pin)	Behind left headlight.
X18/18 (3 Pin)	Behind center of dash.
X18/23 (Black, 3 Pin)	In E-Box.
X18/27 (Black, 8 Pin)	In E-Box.
X18/28 (Black, 8 Pin)	In E-Box.
X18/29 (Natural, 14 Pin)	In E-Box.
X18/31 (Black, 24 Pin)	In E-Box.
X18/33 (Black, 3 Pin)	In E-Box.
X22 (Black, 16 Pin)	In E-Box.
X35/1 (Black, 20 Pin)	At front of left front door.
X35/2 (Black, 20 Pin)	At front of right front door.
X35/3 (Black, 20 Pin)	At front of left rear door.
X35/4 (Black, 20 Pin)	At front of right rear door.
X35/27 (Black, 6 Pin)	Behind center of dash.
X52 (Black, 16 Pin)	In left rear cargo area, behind trim.
X55/3 (Black, 14 Pin)	Under left front door.
X55/4 (Black, 14 Pin)	Under right front seat.
X58 (13 Pin)	On rear bumper.
X85/9 (2 Pin)	In E-Box.
X88/17 (Black, 2 Pin)	In E-Box.

Mercedes-Benz ML55 2000 - GROUNDS

Mercedes-Benz ML55 2000 GROUNDS LOCATION

Component	Component Location
W2	Behind right headlight.
W2/1	Behind right headlight.
W6	Behind trim at left rear wheelwell.
W7	Behind trim at right rear wheelwell.
W8	Behind trim on liftgate.
W9	Behind left headlight.
W11/3	At top center of engine.
W16	At left rear of engine compartment. See Fig. 2 .
W16/4	At right rear of engine compartment. See Fig. 2 .
W16/5	At left rear of engine compartment.
W16/6	At right rear of engine compartment. See Fig. 2 .
W18	Below left front seat, under carpet.
W19	Below right front seat, under carpet.
W26	Under center console, on SRS mounting bolt.
W29/2	Behind right kick panel.

Mercedes-Benz ML55 2000 - SPLICES

Mercedes-Benz ML55 2000 SPLICES LOCATION

Component	Component Location
Z0/1	In telephone harness.
Z0/2	In telephone harness.
Z3/29a	In engine harness, on top of engine. See Fig. 2 .
Z3/29b	In engine harness, in E-Box. See Fig. 2 .
Z7/35a	In engine harness, at top left side of engine. See Fig. 2 .
Z7/35b	In engine harness, at top left rear side of engine. See Fig. 2 .
Z7/36	In engine harness, at top left side of engine. See Fig. 2 .
Z50/1	In dash harness, near breakout to instrument cluster. See Fig. 3 .
Z50/2	In dash harness, near breakout to A/C control module. See Fig. 3 .
Z50/5	In dash harness, between breakouts to parking brake switch & stoplight switch. See Fig. 3 .
Z50/6	In dash harness, near breakout to instrument cluster connector. See Fig. 3 .
Z50/8	In dash harness, in breakout to starter switch. See Fig. 3 .
Z50/9	In dash harness, near breakout to instrument cluster connector. See Fig. 3 .
Z50/11	In dash harness, near breakout to instrument cluster connector. See Fig. 3 .
Z50/12	In dash harness, between breakouts to parking brake switch & stoplight switch. See Fig. 3 .
Z50/13	In dash harness, near breakout to starter switch. See Fig. 3 .
Z50/14	In dash harness, near breakout to parking brake switch. See Fig. 3 .
Z50/17	In dash harness, near breakout to entrance to E-Box. See Fig. 3 .
Z50/18	In dash harness, near breakout to data link connector.
Z50/19	In dash harness, near breakout to parking brake switch. See Fig. 3 .
Z50/20	In dash harness, in E-Box.
Z50/21	In dash harness, near breakout to PTC heater relays. See Fig. 3 .
Z50/22	In dash harness, near breakout to PTC heater relays. See Fig. 3 .
Z50/24	In dash harness, near breakout to PTC heater. See Fig. 3 .
Z50/26	In dash harness, near breakout to combination switch. See Fig. 3 .
Z50/27	In dash harness, near breakout to combination switch. See Fig. 3 .
Z50/28	In dash harness, in E-Box.
Z50/29	In dash harness, near breakout to A/C control module. See Fig. 3 .
Z50/30	In dash harness, near breakout to A/C control module. See Fig. 3 .
Z51/1	In passenger harness, in breakout to X18.
Z51/2	In passenger harness, in breakout to X18.
Z51/3	In passenger harness, in E-Box.
Z51/4	In passenger harness, in E-Box.
Z51/5	In passenger harness, under front of center console, in breakout to radio & SRS control module.
Z51/6	In passenger harness, under center console, in breakout to center console switch assembly.
Z51/7	In passenger harness, under center console, in breakout to electronic selector lever module control module.
Z51/8	In passenger harness, under right side of dash.
Z51/9	In passenger harness, under left front seat, near breakout to W18.
Z51/11	In passenger harness, under front of center console, in breakout to radio & SRS control module.
Z51/12	In passenger harness, under front of center console, in breakout to radio.
Z51/14	In passenger harness, in E-Box.
Z51/15	In passenger harness, under front of center console, in breakout to radio.
Z51/16	In passenger harness, in breakout to X18.
Z52/1	In passenger harness, under right front seat, near breakout to W19.
Z52/2	In passenger harness, at left rear of vehicle, near breakout to X52.
Z52/4	In passenger harness, under center console, in main harness breakout to left side of vehicle.
Z52/5	In passenger harness, at left rear of vehicle, near breakout to liftgate harness.
Z52/6	In passenger harness, at left rear of vehicle, near breakout to liftgate harness.
Z52/7	In passenger harness, in E-Box.
Z52/8	In passenger harness, under center console, in main breakout to left side of vehicle.
Z52/9	In passenger harness, under center console, in main breakout to left side of vehicle.
Z52/11	In passenger harness, near breakout to X18.
Z52/14	In passenger harness, under center console, in main breakout to left side of vehicle.
Z52/15	In passenger harness, under front of center console, near breakout to radio & SRS control module.
Z53/1	In passenger harness, under center console, in main breakout to left side of vehicle.
Z53/2	In passenger harness, under center console, in main breakout to left side of vehicle.
Z53/4	In passenger harness, at left rear of cargo compartment, near breakout to X52.
Z53/5	In passenger harness, under center console, in main breakout to right side of vehicle.
Z53/6	In passenger harness, at left rear of cargo area, near breakout to X52.
Z53/7	In passenger harness, in breakout to X18.
Z53/8	In passenger harness, under center console, in main breakout to right side of vehicle.
Z53/9	In passenger harness, under center console.
Z53/16	Under right front seat.
Z53/17	In passenger harness, under center console, in main breakout to right side of vehicle.
Z53/18	In passenger harness, in E-Box.
Z53/20	Under front of center console.
Z54/1	In headliner harness, near breakout to right sun visor connector.
Z54/2	In headliner harness, near breakout to right sun visor connector.
Z54/3	In headliner harness, near breakout to rear dome lights.
Z54/7	In headliner harness, near breakout to left sun visor connector.
Z54/8	In headliner harness, near breakout to left sun visor connector.
Z54/9	In headliner harness, in breakout to W7.
Z55/1	In liftgate harness, near breakout to W8.
Z55/2	In liftgate harness, near breakout to liftgate lock motor, rear wiper motor & license plate lights.
Z56/1	Behind left headlight.
Z56/4	Behind left headlight.
Z56/5	Behind left headlight.
Z56/6	Behind left headlight.
Z56/7	At left side of engine compartment, near breakout to horns.
Z57/1	Behind right headlight.
Z57/2	In E-Box.
Z57/3	In right engine harness, near breakout to wiper motor.
Z57/7	In E-Box.
Z58/1	In trailer harness.
Z58/8	In trailer harness.
Z59/1	In door mounted spare wheel harness.
Z59/2	In door mounted spare wheel harness.
Z60/4	In foglight harness.
Z60/5	In foglight harness.
Z61/5	Under center console, near breakout to lower control field control module connector.
Z61/6	Under center console, near breakout to lower control field control module connector.