Mercedes-Benz E320 4Matic 2003 - 2002-04 MERCEDES-BENZ E320, E500 & E55

Mercedes-Benz E320 4Matic 2003 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz E320 4Matic 2003 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
AIRmatic Relay	Left rear of engine compartment.
Air Pump Relay	Left rear of engine compartment. See Fig. 2.
Circuit 15 Relay	Left rear of engine compartment.
Circuit 15R Relay	Left rear of engine compartment.
Circuit 15R/30 Cut-Off Relay	Left rear of engine compartment.
Circuit 87 Relay, Chassis	Left rear of engine compartment.
Circuit 87 Relay, Engine	Left rear of engine compartment. See Fig. 2.
Combination Relay Module (Turn Signal, Rear Window Defroster, Wiper Motor, ATA)	Left rear of engine compartment.
Fan Relay Module	Left rear of engine compartment.
Fuel Filler Cap Polarity Change 1 Relay	Left rear of engine compartment.
Fuel Filler Cap Polarity Change 2 Relay	Left rear of engine compartment.
Fuel Pump Relay	Left rear of engine compartment. See Fig. 2.
Rear Window Defroster Relay	Left rear of engine compartment.
Relay 1, Circuit 15R	Left rear of engine compartment.
Relay 2, Circuit 15R	Left rear of engine compartment.
Reserve 1 Relay	Left rear of engine compartment.
Reserve 2 Relay	Left rear of engine compartment.
SEQ Pump Control Relay	Left rear of engine compartment.
Starter Relay	Left rear of engine compartment. See Fig. 2.
Wiper Relay Stage 1-2	Left rear of engine compartment.

Mercedes-Benz E320 4Matic 2003 - CIRCUIT PROTECTION DEVICES

Mercedes-Benz E320 4Matic 2003 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Driver Side SAM Control Module With Fuse/Relay Module	Left rear of engine compartment. See Fig. 2.
Front Prefuse Box	Right front footwell.
Interior Fuse Box	Left end of dash.
Rear Prefuse	Lower right front of trunk.
Rear SAM Control Module With Fuse/Relay Module	Left side of trunk. See Fig. 7.
Right Fuse/Relay Box	Right rear of engine compartment. See Fig. 4.

Mercedes-Benz E320 4Matic 2003 - CONTROL UNITS

Mercedes-Benz E320 4Matic 2003 CONTROL UNITS LOCATION

Component	Location
AIRmatic With ADS Control Module	Right front footwell. See Fig. 5.
Audio Gateway Control Module	Left side of trunk.
Battery Control Module	Right side of trunk.
CDI Control Unit	Left rear of engine compartment.
Central Gateway Control Module	Left front footwell.
Cycling Module/High Pressure Pump	Right front of engine compartment.
DC/DC Converter Control Module	Left cargo area.
Distronic (DTR) Control Module	Right front seat. See Fig. 4.
Driver Door IR Receiver Unit	Left front door.
Driver Side SAM Control Module With Fuse/Relay Module	Left rear of engine compartment. See Fig. 2.
Dynamic Seat Control Module, Left Front	Left front seat.
Dynamic Seat Control Module, Right Front	Right front seat.
EIS Control Module	Behind left side of dash. See Fig. 7.
Electronic Center Air Outlet Control Module	Center console.
Electronic Selector Lever Module Control Module	Center console.
Electronic Steering Locking Control Module	Left front footwell.
EPS/SPS/BAS Control Module	Left rear of engine compartment. See Fig. 6.
ESA Control Module, Left Front (W/ Memory)	Left front seat.
ESA Control Module, Right Front (W/ Memory)	Right front seat.
ETC Control Module	Right front footwell. See Fig. 4.
Front Passenger Side Door Control Module	Right front door.
Headlamp Range Adjustment Control Module	Under right front seat.
HRA (LWR) Power Module	Attached to respective lamp unit.
HS & Seat Ventilation Control Module	Left front door sill.
Interior Module Keyless Go Control Module	Center of dash.
Left Front Door Control Module	Left front door. See Fig. 7.
Left Rear Door Control Module	Left rear door. See Fig. 7.
Loading Floor Control module	Integrated in automatic loading floor.
Lower Control Field Control Module	Under center console.
ME-SFI Control Module	Left rear of engine compartment. See Fig. 4.
Navigation Processor (CNS)	Left side of trunk.
Panoramic Sliding Roof Drive Unit	Front center of roof.
Passenger Door IR Receiver Unit	Right front door.
PTS Control Module	Left rear of trunk.
Radiator Sir Flow Shutter Control Module	Right front bumper.
Rear Axle Level Control System Control Unit	On back of front passenger footrest.
Rear Door Keyless Go Control Module, Left	Left rear door.
Rear Door Keyless Go Control Module, Right	Right rear door.
Rear Driver-Side Door Control Module	Left rear door.
Rear Module Keyless Go Control Module	Left cargo area.
Rear Passenger-Side Door Control Module	Right rear door.
Rear SAM Control Module With Fuse/Relay Module	Left side of trunk. See Fig. 7.
Restraint System Control Module	Center control module.
Right Front Door Control Module	Right front door. See Fig. 7.
Right Rear Door Control Module	Right rear door. See Fig. 7.
Roof Control Unit Control Module	Front center of roof.
SBC Control Module	Right front of engine compartment. See Fig. 6.
Signal Pickup & Activation Module (SAM), Left Front	Left rear of engine compartment.
Signal Pickup & Activation Module (SAM), Right Front	Right front footwell.
Sliding/Pop-Up Roof Drive Assembly	Behind overhead control panel.
Sliding Sunroof Lining Drive Unit	Front center of roof.
Solar Generator Control Module	Right side of dash.
Steering Column Module	Left side of dash. See Fig. 4.
Telecommunications Control Module	Front of trunk.
Tire Pressure Monitoring Control Module	Left rear of trunk.
Traction System Hydraulic Unit	Right front of engine compartment.
Trailer Recognition Control Module	Right side of trunk. See Fig. 4.
Voice Activation Control Module	Front of trunk.
Xenon Headlamp Ignition Module	On back of xenon lamp.
Xenon Headlamp Supply Module	Attached to respective lamp unit.

Mercedes-Benz E320 4Matic 2003 - MOTORS

Mercedes-Benz E320 4Matic 2003 MOTORS LOCATION

Component	Location
A/C Compressor	Lower left front of engine compartment.
Active Charcoal Filter Flap Adjustment Motor	Front of center console.
Active Charcoal Filter Flap Adjustment Motor	Right front footwell.
Actuator Motor	Left rear of engine compartment.
Air Compressor Motor Connector	Lower left front of engine compartment.
AIRmatic Compressor Unit	Lower left front of engine compartment. See Fig. 5.
Blending Air Flap Actuator, Left	Center of dash.
Blending Air Flap Actuator Motor, Left Rear	Front of center console.
Blending Air Flap Actuator Motor, Right Rear	Front of center console.
Blending Air Flap Actuator, Right	Center of dash.
Blower Motor	Behind center of dash.
Center Vent Temperature Regulating Flap Actuator Motor, Left	Center of dash.
Center Vent Temperature Regulating Flop Actuator Motor, Right	Center of dash.
Coolant Circulation Pump	Right front of engine compartment.
Defroster Vent Flap Actuator Motor, Left	Center of dash.
Defroster Vent Flap Actuator Motor, Right	Center of dash.
Differential Lock Vacuum Pump	Left rear of trunk.
Electric Air Pump	Right front of engine compartment.
Engine/Climate Control Cooling Fan With Integrated Control	Front center of engine compartment. See Fig. 3.
ESC Motor	Left front footwell.
Footwell Flap Actuator Motor, Left	Left front footwell.
Footwell Flap Actuator Motor, Right	Left front footwell.
Fresh Air/Recirculated Air Flaps Actuator Motor	Right front footwell.
Fuel Filler Flap CL Motor	Right side of trunk. See Fig. 7.
Fuel Pump (FP)	Under left rear seat, in fuel tank.
HCS Pump	Right front wheelhouse.
Headlamp Range Adjustment Motor, Left	Attached to left front headlamp unit.
Headlamp Range Adjustment Motor, Right	Attached to right front headlamp unit.
Head Restraint Motor, Center Rear	Rear of passenger compartment.
Head Restraint Motor, Left Rear	Rear of passenger compartment.
Head Restraint Motor, Right Rear	Rear of passenger compartment.
Heat Exchanger Shutoff Motor	Left rear of engine compartment.
High Pressure Return Pump	Right front of engine compartment.
Left Front Door CL Motor	Left front door. See Fig. 7.
Left Rear Door CL Motor	Left rear door. See Fig. 7.
Loading Floor Hydraulic Pump	Integrated in automatic loading floor.
Module Box Blower Motor	Left rear of engine compartment.
Opening Assist Motor. Left Front	Left front door.
Opening Assist Motor, Left Rear	Left rear door.
Opening Assist Motor, Right Front	Right front door.
Opening Assist Motor, Right Rear	Right rear door.
Panoramic Sliding Roof Motor	Front center of roof.
Pneumatic Pump, Dynamic Seat Control	Left rear of trunk.
Rear Sun Shade Motor	Under hat shelf.
Right Front Door CL Motor	Right front door. See Fig. 7.
Right Rear Door CL Motor	Right rear door. See Fig. 7.
Seat Back Ventilation Motor Group, Right Front	Left front footwell.
Seat Ventilation Motor Group, Left Front	Left front seat.
Seat Ventilation Motor Group, Left Front	Right front seat.
Seat Ventilation Motor Group, Right Front	Right front seat.
Sliding/Pop-Up Roof Motor	Behind overhead control panel.
Sliding/Pop-Up Roof Motor (Hall Sensor 1)	Mounted on axle.
Sliding/Pop-Up Roof Motor (Hall Sensor 2)	Mounted on axle.
Sliding Sunroof Lining Motor	Front center of roof.
Starter	Left rear of engine compartment.
Tailgate CL Actuator Motor	Lower center of trunk lid.
Tailgate Washer Pump	Right front wheelhouse.
Tailgate Wiper Motor	Center of tailgate.
Telescopic Adjustment Motor (In/Out)	Left front footwell.
Throttle Valve Actuator	Left side of engine.
Tilt Adjustment Motor (Up/Down)	Left front footwell.
Wiper Motor	Rear of engine compartment.

Mercedes-Benz E320 4Matic 2003 - SENDING UNITS & SENSORS

Mercedes-Benz E320 4Matic 2003 SENDING UNITS & SENSORS LOCATION

Component	Location
AIRmatic Pressure Sensor	Left front wheelhouse. See Fig. 5.
ATA Tow Sensor	Right "C" pillar.
Brake Lining Wear Sensor, Left Front	Left front wheel.
Brake Lining Wear Sensor, Right Front	Right front wheel.
Brake Lining Wear Sensor, Right Rear	Right rear wheel.
Camshaft Hall-Effect Sensor	Right front of engine compartment.
Charge Air Temperature Sensor	Left side if engine compartment.
Charge Pressure Sensor	Left side of engine.
CKP Sensor	On top of bellhousing, behind left cylinder head.
Distronic (DTR) Radar Sensor	Front of engine compartment. See Fig. 4.
Door Airbag Sensor, Left	Left front door sill.
Door Airbag Sensor, Right	Under right front seat.
Driver-Side Frontal Acceleration Sensor	Left front of engine compartment.
ECT Sensor	Right front of engine compartment.
Emissions Sensor	Left rear of engine compartment.
Evaporator Temperature Sensor	Left front footwell.
Front Axle Level Sensor	Right front wheelhouse.
Front Axle Pre-Pressure Sensor	In hydraulic unit.
Front Body Acceleration Sensor, Left	Left rear of engine compartment.
Front Body Acceleration Sensor, Right	Right rear of engine compartment.
Front Level Sensor, Left	Left front wheelhouse.
Front Level Sensor, Right	Right front wheelhouse.
Fuel Tank Pressure Sensor	In fuel tank, under left rear seat.
Fuel Temperature Sensor	Right front of engine compartment.
Gear Display Sensor	Under center console.
Heater Coil Temperature Sensor	In steering wheel.
Hot Film MAF Sensor	Left rear of engine compartment.
Hot Film MAF Sensor	Right front of engine compartment.
In-Car Temperature Sensor	Right of steering column.
Intake Air Temperature Sensor	Right front of engine compartment, integral with hot film MAP sensor.
Knock Sensor 1, Right	Engine block.
Knock Sensor 2, Left	Engine block.
Left Center Sensor (Front Bumper)	Front bumper.
Left Front Body Lateral Acceleration Sensor	Left front wheelhouse. See Fig. 5.
Left Front Pressure Sensor	Inside hydraulic unit.
Left Fuel Level Sensor	In fuel tank, under left rear seat. See Fig. 5.
Left Inner Sensor (Front Bumper)	Front bumper.
Left Inner Sensor (Rear Bumper)	Rear bumper.
Left Outer Sensor (Front Bumper)	Front bumper.
Left Outer Sensor (Rear Bumper)	Rear bumper.
Left O2S 1 (Before TWC)	Behind left front wheel. See Fig. 3.
Left O2S 2 (After TWC)	Behind left front wheel. See Fig. 3.
Left Rear Pressure Sensor	Inside hydraulic unit.
Oil Sensor (Level, Temperature, Quality)	Behind right front wheel.
Outside Temperature Indicator Temperature Sensor	Behind left side of front bumper.
O2 Sensor Upstream Of TWC	Behind turbocharger.
Passenger Seat Occupied Recognition/Automatic Child Seat Recognition (ACSR)	Right front seat.
Passenger-Side Front Acceleration Sensor	Right front of engine compartment.
Pedal Value Sensor	Above accelerator pedal. See Fig. 1.
Pedal Value Sensor	Left rear of engine compartment.
Pressure Differential Sensor TWC (KAT)	Right rear of engine compartment, behind heat shield.
Pressure Sensor	Right front of engine compartment.
Pressure Sensor Downstream Of Air Cleaner	Right front of engine compartment.
PTS Sensor Assembly (Front Bumper)	Right front bumper.
PTS Sensor Assembly (Rear Bumper)	Rear bumper.
PTS Warning Indicator (Rear Dome Lamp)	Rear center of roof.
Quadruple Sun Sensor For A/C	Top rear of engine hood.
Rail Pressure Sensor	Left side of engine.
Rain/Light Sensor	Behind top center of windshield.
Rear Axle Level Sensor	Left side of rear axle. See Fig. 5.
Refrigerant Pressure & Temperature Sensor	Left rear of engine compartment.
Reservoir Sensor	In hydraulic unit.
Right Center Sensor (Front Bumper)	Front bumper.
Right Front Body Lateral Acceleration Sensor	Right front wheelhouse. See Fig. 5.
Right Front Level Sensor	Right front wheelhouse. See Fig. 5.
Right Inner Sensor (Front Bumper)	Front bumper.
Right Inner Sensor (Rear Bumper)	Rear bumper.
Right Outer Sensor (Front Bumper)	Front bumper.
Right Outer Sensor (Rear Bumper)	Rear bumper.
Right O2A 1 (Before TWC)	Behind right front wheel. See Fig. 3.
Right O2S 2 (After TWC)	Behind right front wheel. See Fig. 3.
Right Rear Body Acceleration Sensor	Right rear wheelhouse.
Right Rear Body Acceleration Sensor	Right rear wheelhouse. See Fig. 5.
Right Rear Pressure Sensor	Inside hydraulic unit.
Rotational Speed & Lateral Acceleration Sensor	Under right front seat. See Fig. 6.
RPM 2 Sensor	In transmission.
RPM 3 Sensor	In transmission.
Steering Angle Sensor	Left side of dash. See Fig. 5.
Tire Pressure Control (TCP) Sensor, Left Front	Left front wheel.
Tire Pressure Control (TPC) Sensor, Left Rear	Left rear wheel.
Tire Pressure Control (TPC) Sensor, Right Front	Right front wheel.
Tire Pressure Control (TPC) Sensor, Right Rear	Right rear wheel.
Transmission temperature Sensor	In transmission.
TWC (KAT) Temperature Sensor, Downstream	Screwed from below into oxidation catalytic converter housing.
TWC (KAT) Temperature Sensor, Upstream	Screwed from below into oxidation catalytic converter housing.
VSS, Left Front	Left front wheel.
VSS, Left Rear	Left rear wheel.
VSS, Right Front	Right front wheel.
VSS, Right Rear	Right rear wheel.

Mercedes-Benz E320 4Matic 2003 - SOLENOIDS & SOLENOID VALVES

Mercedes-Benz E320 4Matic 2003 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
Activated Charcoal Filter Shutoff Valve	Right rear wheelhouse.
Additional Volume Valve, Left Front	Integrated into left front suspension strut.
Additional Volume Valve, Left Rear	Integrated into left rear suspension strut.
Additional Volume Valve, Right Front	Integrated into right front suspension strut.
Additional Volume Valve, Right Rear	Integrated into right rear suspension strut.
AIRmatic Pressure Relief Valve	In AIRmatic compressor unit. See Fig. 1.
Air Pump Switchover Valve	Right front of engine compartment.
Axle Solenoid, Left Front	Inside hydraulic unit.
Axle Solenoid, Left Rear	Inside hydraulic unit.
Axle Solenoid, Right Front	Inside hydraulic unit.
Axle Solenoid, Right Rear	Inside hydraulic unit.
Axle Solenoid Valve, Left Front (Hold)	Inside hydraulic unit.
Axle Solenoid Valve, Left Front (Release)	Inside hydraulic unit.
Axle Solenoid Valve, Left Rear (Hold)	Inside hydraulic unit.
Axle Solenoid Valve, Left Rear (Release)	Inside hydraulic unit.
Axle Solenoid Valve, Right Front (Hold)	Inside hydraulic unit.
Axle Solenoid Valve, Right Front (Release)	Inside hydraulic unit.
Axle Solenoid Valve, Right Rear (Hold)	Inside hydraulic unit.
Axle Solenoid Valve, Right Rear (Release)	Inside hydraulic unit.
Front Axle Damper Valve Assembly Connector, Left	Left front axle.
Front Axle Damper Valve Assembly Connector, Right	Right front axle.
Front Axle Damper Valve Assembly, Left	Left front axle.
Front Axle Damper Valve Assembly, Right	Right front axle.
Front Axle Solenoid Valve 1, Left	Left front axle.
Front Axle Solenoid Valve 1, Right	Right front axle.
Front Axle Solenoid Valve 2, Left	Left front axle.
Front Axle Solenoid Valve 2, Right	Right front axle.
Front Spring Strut AIRmatic Valve Unit, Left	Integrated into crown of suspension strut.
Front Spring Strut AIRmatic Valve Unit, Right	Integrated into crown of suspension strut.
Fuel Injectors (Cylinder 1, 2, 3, 4)	Right side of engine.
Fuel Injectors (Cylinder 5, 6, 7, 8)	Left side of engine.
Left RHR Release Valve	Integrated into left rear seat backrest.
Level Regulating Valve Assembly	Left front wheelhouse.
Modulating Pressure Regulating Solenoid Valve	In transmission.
Pressure Regulator Valve	Rear of engine compartment.
Purge Control Valve	Left front of engine compartment. See Fig. 2.
PWM Solenoid Valve (Torque Converter Lock-Up)	In transmission.
Quality Control Valve	Right front of engine compartment.
Rear Axle Damper Valve Assembly, Left	Left rear axle.
Rear Axle Damper Valve Assembly, Right	Right rear axle.
Rear Axle Solenoid Valve 1, Left	Left rear axle.
Rear Axle Solenoid Valve 1, Right	Right rear axle.
Rear Axle Solenoid Valve 2, Left	Left rear axle.
Rear Axle Solenoid Valve 2, Right	Right rear axle.
Rear Suspension Strut AIRmatic Valve Unit, Left	Integrated into crown of suspension strut.
Rear Suspension Strut AIRmatic Valve Unit, Right	Integrated into crown of suspension strut.
Right RHR Release Valve	Integrated into left rear seat backrest.
Shift Pressure Regulating Solenoid Valve	In transmission.
Throttle Valve Control Element	Left rear of engine compartment.
1-2/4-5 Shift Solenoid Valve	In transmission.
2-3 Shift Solenoid Valve	In transmission.
3-4 Shift Solenoid Valve	In transmission.

Mercedes-Benz E320 4Matic 2003 - SWITCHES

Mercedes-Benz E320 4Matic 2003 SWITCHES LOCATION

Component	Location
Brake Fluid Level Switch	Left rear of engine compartment.
Clutch Pedal Switch	Left front footwell.
Door Switch, Left Front	Left "B" pillar.
Door Switch, Left Rear	Left "C" pillar.
Door Switch, Right Front	Right "B" pillar.
Door Switch, Right Rear	Right "C" pillar.
ECL Switch	Left rear of engine compartment.
Engine Hood Switch (ATA)	Right front of engine compartment.
ESC Switch	Left front footwell.
Kickdown Switch	Left front footwell.
Loading Floor Off Limit Switch	Integrated into automatic loading floor.
Loading Floor On Limit Switch	Integrated into automatic loading floor.
Parking Brake Switch	Left front footwell.
Power Locking Switch	On trunk lid.
Seat Belt Buckle Switch, Left Front	Left front seat.
Seat Belt Buckle Switch, Right Front	Right front seat.
Trunk Lid Contact Switch	Rear center of trunk.
Trunk Lid Emergency Release Switch	Center of trunk lid.
Windshield Washer Fluid Level Switch	Right front wheelhouse.

Mercedes-Benz E320 4Matic 2003 - MISCELLANEOUS

Mercedes-Benz E320 4Matic 2003 MISCELLANEOUS LOCATION

Component	Location
Acoustimass Bass Module	Under center of hat shelf.
Actual Value Potentiometer, Drive	Left rear of engine compartment.
Actual Value Potentiometer, Throttle Valve	Left rear of engine compartment.
Actual Value Potentiometer (Wiper 1)	Left rear of engine compartment.
Actual Value Potentiometer (Wiper 2)	Left rear of engine compartment.
Alarm Horn	Left front wheelhouse.
Antenna Amplifier, Left	Left "C" pillar.
Antenna Amplifier, Right	Right "C" pillar.
Antenna, GPS	Rear of roof.
Antenna, Left Rear Door (Keyless Go)	Near center of dash.
Antenna, Rear Bumper	Rear bumper.
Antenna, Right Rear Door (Keyless Go)	Right rear door.
Antenna, TELE AID Backup	Right of trunk.
Antenna, Trunk (Keyless Go)	In trunk.
Auxiliary Battery	Right rear of engine compartment.
Battery	Lower right side of trunk.
Diagnostic Data Link Connector	Lower left side of dash. See Fig. 1.
Driver Airbag (AB) Squib 1	Steering wheel.
Driver Airbag (AB) Squib 2	Steering wheel.
Driver ETR Squib	Left "B" pillar.
Driver Side Door Airbag Squib	Left front seat.
DTR Diagnosis Connector	Left front door sill.
E-Net Compensator	Front of trunk.
Exhaust Gas Recirculation Positioner, Left	Left side of engine compartment.
Fanfare Horns	Behind left side of front bumper.
Fanfare Horn 2	Right front of engine compartment.
Front Passenger Belt Force Limiter	Right "A" pillar.
Front Passenger ETR Squib	Right "B" pillar.
Front Seat Ventilation Blower Regulator, Left	Left front seat.
Front Seat Ventilation Bower Regulator, Right	Right front seat.
Front Window Airbag Squib, Right	Left "B" pillar.
Generator	Lower right front of engine compartment.
Glow Output Stage	Left front of engine compartment, in coolant bottle.
Glow Plugs	In cylinder head below rail.
Heater System Air Circulation Unit	Right front footwell.
Heater System Air Circulation Unit	Right front footwell.
Horn/Airbag Clock Spring Contact	Top of steering column.
Ignition Coil (Cylinder 1, 2, 3, 4)	Right side of engine compartment.
Ignition Coil (Cylinder 5, 6, 7, 8)	Left side of engine compartment.
Left Front IR Receiver	Left front door handle. See Fig. 7.
Passenger AB Squib 1	Right side of dash.
Passenger AB Squib 2	Right side of dash.
Passenger Side Door Airbag Squib	Right front door.
Rear Door Airbag Squib	Right rear door.
Rear Door Airbag Squib, Left	Left rear door.
Rear ETR Squib, Left	Left "C" pillar.
Rear ETR Squib, Right	Right "C" pillar.
Rear Window (Curtain) Airbag Squib, Left	Left "A" pillar.
Rear Window (Curtain) Airbag Squib, Right	Right "A" pillar.
Right Front IR Receiver	Right front door handle. See Fig. 7.
Spark Plugs	Right front of engine compartment.
Tire Pressure Control (TPC) Antenna, Left Front	Left front wheelhouse.
Tire Pressure Control (TPC) Antenna, Left Rear	Left rear wheelhouse.
Tire Pressure Control (TPC) Antenna, Right Front	Right front wheelhouse.
Tire Pressure Control (TPC) Antenna, Right Rear	Right rear wheelhouse.
Transmission Diagnosis Connector	Left front door sill.
Washer Nozzle Hose Heating	Right front wheelhouse.
Window Antenna Amplifier Module 2	Upper right side of tailgate.

Mercedes-Benz E320 4Matic 2003 - CONNECTORS

Mercedes-Benz E320 4Matic 2003 CONNECTORS LOCATION

Component	Location
X18/4	Left rear door sill.
X18/35	Center console.
X25/8 (4 Pin)	Left "C" pillar.
X25/10	Near right rear wheelhouse.
X26 (8 Pin)	Left rear side of engine compartment.
X26/12 (4 Pin)	Right front door.
X26/27 (8 Pin)	Left front bumper.
X28/12 (12 Pin)	Front of center console.
X30/4 (2 Pin)	Right front footwell.
X30/5 (3 Pin)	Left front door sill.
X30/6 (2 Pin)	Right front footwell.
X30/7 (2 Pin)	Left front footwell.
X30/8 (10 Pin)	Left front footwell.
X30/9	Left front footwell.
X30/12	Left front footwell.
X30/13 (10 Pin)	Left front footwell.
X35/1	Left front door.
X35/2	Right front door.
X35/3 (4 Pin)	Left rear door.
X35/4 (4 Pin)	Right rear door.
X35/27	Left front footwell.
X35/28 (6 Pin)	Left rear of trunk.
X36/3	Under left rear seat.
X38	Near left taillamp unit.
X39/5	Center console.
X39/48 (6 Pin)	Center console.
X39/50	Near left rear wheelhouse.
X39/57 (4 Or 20 Pin)	Center console.
X55/3 (4 Or 12 Pin)	Under left front seat.
X55/4(1) (4 Pin)	Right front footwell.
X55/4(12) (12 Pin)	Right front footwell.
X62/32(1) (4 Pin)	Left "C" pillar.
X62/32(2) (4 Pin)	Left "C" pillar.
X62/32(3) (4 Pin)	Left "C" pillar.
X62/32(4) (4 Pin)	Left "C" pillar.
X62/33(1) (4 Pin)	Right rear wheelhouse.
X62/33(2) (4 Pin)	Right rear wheelhouse.
X62/33(3) (4 Pin)	Right rear wheelhouse.
X62/33(4) (4 Pin)	Right rear wheelhouse.
X103(1)	Left end of rear seat.
X103(2) (4 Pin)	Right end of rear seat.
X103(3) (6 Pin)	Right end of rear seat.
X103(4)	Left end of rear seat.
X148 (4 Pin)	Center of trunk lid.

Mercedes-Benz E320 4Matic 2003 - GROUNDS

Mercedes-Benz E320 4Matic 2003 GROUNDS LOCATION

Component	Location
W2	At right headlamp unit.
W3/1	Right front wheelhousing, at ignition coil.
W6	Left wheelhousing in trunk.
W6/1	Left taillamp in trunk.
W8/3	Lower left of liftgate.
W9	At left headlamp unit.
W9/1	At left headlamp unit ignition coil.
W10	Battery ground, right rear of trunk.
W/11/3	Left front of engine.
W15/1	Right front footwell.
W15/2	Right front footwell.
W15/3	Left rear of engine compartment.
W17/1	Left end of rear seat back.
W26	Under center console.

Mercedes-Benz E320 4Matic 2003 - SPLICES

Mercedes-Benz E320 4Matic 2003 SPLICES LOCATION

Component	Location
Z3/1	Left side of engine compartment.
Z3/4	Left rear of engine compartment.
Z3/11	Upper left side of dash.
Z3/29(2)	Left front of engine compartment.
Z4/3(1)	Left rear door.
Z6	Upper left side of dash.
Z6(1)	Upper right end of dash.
Z6/1	Upper right end of dash.
Z6(2)	Upper right end of dash.
Z6(8)	Upper left side of dash.
Z6/20(1)	Lower left side of tailgate.
Z6/20(2)	Lower left side of tailgate.
Z6/26	Left kick panel.
Z6/27	Right side of engine compartment.
Z6/42(1)	Upper left side of trunk lid.
Z6/46	Near gear selector.
Z6/46(1)	Right footwell.
Z6/46(2)	Right footwell.
Z6/46(3)	Right footwell.
Z6/46(4)	Right footwell.
Z6/47	Left footwell.
Z6/49	Right front of engine compartment.
Z6/50	Left front of engine compartment.
Z6/50(1)	Right rear of engine compartment.
Z6/50(2)	Left front of engine compartment.
Z6/50(3)	Left side of engine compartment.
Z6/56	Left footwell.
Z7/1	Upper left end of dash.
Z7/24	Upper left end of dash.
Z7/35(1)	Center of engine compartment.
Z7/35(2)	Center of engine compartment.
Z7/35(3)	Center of engine compartment.
Z7/36	Center of engine compartment.
Z7/38	Left rear of engine compartment, under fuse & relay box.
Z7/39	Left rear of engine compartment, under fuse & relay box.
Z7/53	Left rear footwell.
Z7/56	Left rear footwell.
Z7/57	Left rear footwell.
Z7/58	Upper left side of dash.
Z36/1	Left side of rear bumper.
Z36/2	Left side of rear bumper.
Z36/3	Left front of engine compartment.
Z36/4	Left front of engine compartment.
Z36/12	Left rear of engine compartment, under fuse & relay box.
Z37/6	Upper left side of dash
Z37/7	Upper left side of dash.
Z37/8	Left side of engine compartment.
Z53/9	Right front door.
Z53/9(1)	Right front door.
Z53/9(2)	Right front door.
Z70/3	Left font door.
Z70/4	Near left front wheelhouse.
Z81/5	Upper left end of dash.
Z92	Near left front wheelhouse.
Z111	Upper left end of dash.