Mercedes-Benz E320 1996 - 1996 MERCEDES-BENZ E300D, E320 & E420

Mercedes-Benz E320 1996 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz E320 1996 BUZZERS, RELAYS & TIMERS

Component	Component Location
High Pressure/Return Pump Relay (ESP & SPS)	On left side of engine compartment. See Fig. 1 .

Mercedes-Benz E320 1996 - CIRCUIT PROTECTION DEVICES

Mercedes-Benz E320 1996 CIRCUIT PROTECTION DEVICES

Component	Component Location
Fuse Box (In Trunk)	On right side of trunk compartment.
Fuse/Relay Box	On left rear of engine compartment.
Relay Unit	In module box, on right rear of engine compartment.

Mercedes-Benz E320 1996 - CONTROL UNITS

Mercedes-Benz E320 1996 CONTROL UNITS

Component	Component Location
ADS Control Module	On left rear corner of engine compartment.
AIR Relay Module (E320)	On left rear corner of engine compartment. See Fig. 5 .
ASR/ETS/ESP Hydraulic Unit (ESP & SPS)	On left front of engine compartment. See Fig. 1 .
ASR/ETS/ESP Hydraulic Unit Traction Systems (ASR, ETS) & SPS	On left front of engine compartment. See Fig. 2 .
ASR/SPS Control Module	In module box, on right rear of engine compartment.
ASR/SPS Control Module Traction Systems (ASR, ETS) & SPS	In module box, on right rear of engine compartment. See Fig. 2 .
Automatic Transmission Control Module (EATC) (5-Speed)	In module box, on right rear of engine compartment.
Cycling Module	On left rear corner of engine compartment.
Diagnostic Module	On left rear corner of engine compartment.
Engine Control Module	In module box, on right rear of engine compartment.
Engine Control Module (HFM-SFI) (E320)	In module box, on right rear of engine compartment. See Fig. 6 .
ESP/SPS Control Module (ESP & SPS)	In module box, on right rear of engine compartment. See Fig. 1 .
ETS/SPS Control Module	In module box, on right rear of engine compartment.
ETS/SPS Control Module Traction Systems (ASR, ETS) & SPS	In module box, on right rear of engine compartment. See Fig. 2 .
Headlamp Range Adjustment Control Module	Under left side of rear seat.
IFI Control Module (E300D)	In module box, on right rear of engine compartment. See Fig. 4 .
Infrared Remote Central Locking (IRCL) Control Module	Behind right side of dash.
Left Infrared Transmitter & Receiver	At top of left "B" pillar.
Light Module	Under left side of dash.
Malfunction Control Module	On left rear corner of engine compartment.
Multi-Function Control Module	In module box, on right rear corner of engine compartment.
Oxygen Sensor 2 (After TWC) Heater Relay Module (E320)	On left rear corner of engine compartment. See Fig. 5 .
Preglow Time-Limit Relay Module (E300D)	On left front of engine compartment.
Pressure Engine Management (PMS) Control Module (E320)	On left side of engine compartment.
Pulse Module (ESP & SPS)	On left rear of engine compartment.
Pulse Module (ETS/HCS/ATA, A/C) (ESP & SPS)	On left rear corner of engine compartment. See Fig. 1 .
Pulse Module/Traction Systems (ASR, ETS) & SPS	On left rear corner of engine compartment. See Fig. 2 .
Relay Module (ESP & SPS)	On right rear of engine compartment.
Relay Module (E320)	On right rear corner of engine compartment. See Fig. 6 .
Relay Module (IFI, Base Function) (E300D)	On right rear of engine compartment. See Fig. 4 .
Relay Module/Traction Systems (ASR, ETS) & SPS	On right rear of engine compartment. See Fig. 2 .
Right Infrared Transmitter & Receiver	At top of right "B" pillar.
Transmission Control Module	In module box, on right rear of engine compartment.
Xenon Headlamp Control Modules	Behind each headlamp.
Xenon Headlamp Ignition Modules	Behind each headlamp.

Mercedes-Benz E320 1996 - MOTORS

Mercedes-Benz E320 1996 MOTORS

Component	Component Location
AIR Pump (E420)	On front of engine. See Fig. 8 .
ASR/ESP Charging Pump (E300D, E320 & E420)	On left rear corner of engine compartment. See Fig. 1 .
EA/CC/ISC Actuator (E420)	On top center of engine. See Fig. 8 .
Electric Air Pump (E320)	On right side of engine.
Fuel Quantity Actuator (IFI) (E300D)	On left side of engine. See Fig. 3 .
Headlamp Range Adjustment Motors	On each respective headlamp assembly.
Headlamp Washing Pump	On left front of engine compartment.
Idle Speed Control Actuator (E320)	On left side of engine.
IFI Electrohydraulic Shut-Off Actuator (E300D)	On left side of engine. See Fig. 3 .
Left Auxiliary Fan	On left front of engine compartment.
Left Headlamp Wiper Motor	On left headlamp assembly.
Pressure Control Flap Vacuum Transducer (E300D)	On right front of engine compartment. See Fig. 4 .
Right Auxiliary Fan	On right front of engine compartment.
Right Headlamp Wiper Motor	On right headlamp assembly.
Wiper Motor	On center rear of engine compartment.

Mercedes-Benz E320 1996 - SENDING UNITS & SENSORS

Mercedes-Benz E320 1996 SENDING UNITS & SENSORS

Component	Component Location
ABS Lateral Acceleration Sensor (ESP & SPS)	Behind left center of dash. See Fig. 1 .
ATA Tilt Sensor	In right rear of passenger compartment.
Camshaft Hall-Effect Sensor (E420)	On top left front of engine. See Fig. 8 .
Camshaft Position Sensor (E320)	On left side, front of cylinder head.
CKP Sensor (E420)	On lower rear of engine. See Fig. 8 .
CKP Sensor (IFI) (E300D)	On left rear of engine. See Fig. 3 .
Crankshaft Position Sensor (E320)	On rear of engine.
ECT Sensor (E420)	On top front of engine. See Fig. 8 .
ECT Sensor (IFI) (E300D)	On top middle of engine. See Fig. 3 .
ECT Sensor (Preglow System) (E300D)	On top front of engine.
EGR Lifting Sensor (E300D)	On right side of engine.
ESP Brake Pressure Sensor (ESP & SPS)	On lower left rear of engine compartment. See Fig. 1 .
ESP Yaw Rate Sensor (ESP & SPS)	On floor under driver's seat. See Fig. 1 .
Evaporator Temperature Sensor	In A/C-Heater plenum.
Front Axle Headlamp Range Adjustment Sensor	On underside of vehicle, on front suspension and frame rail.
Fuel Gauge Sender	In fuel tank.
Fuel Rack Position Sensor (E300D)	On rear of in-line injection pump.
Fuel Temperature Sensor (E300D)	On top of in-line injection pump.
Heated Oxygen Sensors (2) (E420)	In each exhaust pipe, below exhaust manifolds.
Heater Core Temperature Sensor	Behind center of dash, in A/C- Heater plenum.
Hot Film Air Mass Sensor (E320)	On air intake assembly.
Hot Film MAF Sensor (E420)	On top center of engine. See Fig. 8 .
IAT Sensor (E300D)	On right side of engine, in air intake. See Fig. 3 .
IAT Sensor (E320)	On left side of engine compartment, in air intake. See Fig. 7 .
IAT Sensor (E420)	On top center of engine. See Fig. 8 .
IFI Accelerator Pedal Position Sensor (E300D)	On left rear of engine compartment. See Fig. 4 .
In-Car Temperature Sensor	In overhead console.
Knock Sensors (2) (E320)	On left side of engine.
Knock Sensor 1 (Right Side) (E420)	On lower right side of engine. See Fig. 9 .
Knock Sensor 2 (Left Side) (E420)	On lower left side of engine. See Fig. 9 .
Left Front Axle VSS Sensor Traction Systems (ASR, ETS) & SPS	Behind left front wheel hub assembly. See Fig. 2 .
Left Front VSS Sensor (ESP & SPS)	Behind left front wheel hub assembly. See Fig. 1 .
Left Rear Axle VSS Sensor Traction Systems (ASR, ETS) & SPS	Behind left rear wheel hub assembly. See Fig. 2 .
Left Rear VSS Sensor (ESP & SPS)	Behind left rear wheel hub assembly. See Fig. 1 .
Oxygen Sensor 1 (Before TWC) (E320)	Under vehicle, in exhaust pipe, in front of TWC. See Fig. 7 .
Outside Temperature Sensor	On left front of vehicle, near left headlamp.
Pressure Sensor (E300D)	On left side of engine compartment. See Fig. 4 .
Pressure Sensor (E420)	On top front of engine. See Fig. 8 .
Rain Sensor	On top center of windshield.
Rear Axle Headlamp Range Adjustment Sensor	On underside of vehicle, on rear suspension and frame rail.
Rear Axle Vehicle Speed Sensor	Under rear of vehicle, on rear axle assembly.
Refrigerant Pressure Sensor	On left front of engine compartment, behind left headlamp.
Refrigerant Temperature Sensor	On left front of engine compartment, behind left headlamp.
Right Front Axle VSS Sensor Traction Systems (ASR, ETS) & SPS	Behind right front wheel hub assembly. See Fig. 2 .
Right Front VSS Sensor (ESP & SPS)	Behind right front wheel hub assembly. See Fig. 1 .
Right Rear Axle VSS Sensor Traction Systems (ASR, ETS) & SPS	Behind right rear wheel hub assembly. See Fig. 2 .
Right Rear VSS Sensor (ESP & SPS)	Behind right rear wheel hub assembly. See Fig. 1 .
Starter Ring Gear Speed Sensor	On rear of engine.
Steering Angle Sensor (ESP & SPS)	In steering column. See Fig. 1 .

Mercedes-Benz E320 1996 - SOLENOIDS & SOLENOID VALVES

Mercedes-Benz E320 1996 SOLENOIDS & SOLENOID VALVES

Component	Component Location
AIR Pump Switchover Valve (E420)	On top front of engine. See Fig. 8 .
AIR Shut-Off Valve (E320)	On right side of engine.
EGR Valve (E320)	On right side of engine.
EGR Switchover Valve (E300D)	On right front of engine compartment. See Fig. 4 .
Left Adjustable Camshaft Timing Solenoid (E420)	On front of left cylinder head. See Fig. 8 .
Purge Control Valve (E320)	On left side, front of engine compartment. See Fig. 7 .
Resonance Intake Line Switchover Valve (E300D)	On top middle of engine. See Fig. 3 .
Resonance Intake Manifold Switchover Valve (E300D)	On top middle of engine. See Fig. 3 .
Right Adjustable Camshaft Timing Solenoid (E420)	On front of right cylinder head. See Fig. 8 .
R/P Lock Solenoid	On gear shift selector assembly.
Upshift Delay Switchover Valve (E320)	On left side, front of engine compartment. See Fig. 7 .

Mercedes-Benz E320 1996 - SWITCHES

Mercedes-Benz E320 1996 SWITCHES

Component	Component Location
Kickdown Switch	On floor, under accelerator pedal.
Left Front Seat Belt Buckle Switch	In driver's seat belt buckle.
Oil Level Switch (E420)	On right rear of engine. See Fig. 9 .
Parking Brake Switch (ESP & SPS)	On parking brake assembly. See Fig. 1 .
Parking Brake Switch Traction Systems (ASR, ETS) & SPS	On parking brake assembly. See Fig. 2 .
Right Front Seat Belt Buckle Switch	In front passenger's seat belt buckle.
Starter Lock-Out/Back-Up Lamp Switch (E300D)	On left rear of transmission. See Fig. 3 .
Starter Lock-Out/Back-Up Lamp Switch (E320)	On left rear of transmission.
Stop Lamp Switch (ESP & SPS)	On brake pedal support bracket. See Fig. 1 .
Stop Lamp Switch (4-Pole) (E300D)	On brake pedal support bracket. See Fig. 4 .
Stop Lamp Switch (4-Pole) Traction Systems (ASR, ETS) & SPS	On brake pedal support bracket. See Fig. 2 .
Transmission Range Recognition Switch (Voltage Coded)	On gear shift selector assembly.

Mercedes-Benz E320 1996 - MISCELLANEOUS

Mercedes-Benz E320 1996 MISCELLANEOUS

Component	Component Location
CHECK ENGINE MIL (E320)	On instrument cluster. See Fig. 5 .
Data Link Connector (DTC Readout) (E320)	On left rear of engine compartment. See Fig. 6 .
Data Link Connector (ESP & SPS)	On left rear of engine compartment. See Fig. 1 .
Data Link Connector Traction Systems (ASR, ETS) & SPS	On left rear of engine compartment. See Fig. 2 .
Ignition Coils (8) (E420)	On top of each respective cylinder. See Fig. 9 .

Mercedes-Benz E320 1996 - CONNECTORS

Mercedes-Benz E320 1996 CONNECTORS

Component	Component Location
X4 (1-Pin)	Below accelerator pedal.
X11/4 (36-Pin)	At left rear of engine compartment.
X12/3 (2-Pin)	At left rear of engine compartment.
X12/5 (1) (1-Pin)	On inner sill panel, under left front door.
X12/5 (2) (1-Pin)	On inner sill panel, under left front door.
X18 (5-Pin)	On inner sill panel, under left front door.
X21/1 (4-Pin)	At left rear of engine compartment.
X22 (13-Pin)	At right rear of engine compartment.
X22/2 (3-Pin)	At right rear of engine compartment.
X22/3 (12-Pin)	At right rear of engine compartment.
X25 (4-Pin)	On inner sill panel, under left front door.
X25/1 (6-Pin)	On inner sill panel, under left front door.
X25/2 (Brown, 8-Pin)	On inner sill panel, under right front door.
X25/3 (Black, 8-Pin)	On inner sill panel, under right front door.
X26 (A) (8-Pin)	At left rear of engine compartment.
X26 (B) (2-Pin)	At left rear of engine compartment.
X26/1 (2-Pin)	On inner sill panel, under right front door.
X28/12 (2-Pin)	On inner sill panel, under right front door.
X35/1 (1) (4-Pin)	On inner sill panel, under left front door.
X35/1 (2) (28-Pin)	On inner sill panel, under left front door.
X35/1 (3) (2-Pin)	On inner sill panel, under left front door.
X35/2 (1) (4-Pin)	On inner sill panel, under right front door.
X35/2 (2) (28-Pin)	On inner sill panel, under right front door.
X35/2 (3) (2-Pin)	On inner sill panel, under right front door.
X35/3 (1) (4-Pin)	On inner sill panel, under left front door.
X35/3 (2) (5-Pin)	On inner sill panel, under left front door.
X35/4 (1) (4-Pin)	Under vehicle, below right "B" pillar.
X35/4 (2) (5-Pin)	Under vehicle, below right "B" pillar.
X39/5 (10-Pin)	Under rear of center console.
X42/28 (1-Pin)	On inner sill panel, under left front door.
X54/7 (8-Pin)	Behind steering wheel.
X55/3 (4-Pin)	Under left front seat.
X55/4 (4-Pin)	Under right front seat.
X62/2 (4-Pin)	Under right side of rear seat.
X62/6 (4-Pin)	Above right front wheelwell.
X62/7 (4-Pin)	At left rear of engine compartment.
X62/19 (1-Pin)	On inner sill panel, under right front door.
X62/21 (1-Pin)	On inner sill panel, under right front door.
X63/5 (2-Pin)	At left rear of engine compartment.
X85 (8-Pin)	At left rear of engine compartment.
X88/5 (2-Pin)	At left rear of engine compartment.
X88/12 (1-Pin)	At right front of engine compartment.

Mercedes-Benz E320 1996 - GROUNDS

Mercedes-Benz E320 1996 GROUNDS

Component	Component Location
W1	Behind left side of instrument cluster.
W6/1	At left taillight assembly.
W10	At base of right "B" pillar. See Fig. 1 .
W11	At left front of intake manifold.
W11/2	At right side of engine.
W11/3	At left side of engine.
W15/1	At right footwell.
W15/2	At left footwell.
W16/3	At left rear of engine compartment. See Fig. 1 .
W16/4	At right wheelwell.
W16/5	At left rear of engine compartment.
W16/6	At right rear of engine compartment, forward of control module box. See Fig. 1 .
W18	At left front seat crossmember. See Fig. 1 .
W19	At right front seat crossmember. See Fig. 1 .
W26	At SRS control module.
W29/8	At left "D" pillar.
W30/2	At left lower front of engine compartment. See Fig. 1 .

Mercedes-Benz E320 1996 - SPLICES

Mercedes-Benz E320 1996 SPLICES

Component	Component Location
Z3	In wiring channel, by left rear door sill.
Z3/11	In harness tray, at base of windshield.
Z3/28	In wiring channel, by left rear door sill.
Z3/29	Beneath front fuse box.
Z3/31	In wiring channel, at base of left "A" pillar.
Z6/16	In harness tray, at base of windshield.
Z6/23	Approximately, 200 mm from CTEL transmitter-receiver connector.
Z7	In wiring channel, by right rear door sill.
Z7/1	In harness tray, at base of windshield.
Z7/19	Beneath front fuse box.
Z7/24	Beneath control module box.
Z7/25	Beneath control module box.
Z7/26	In wiring channel, at base of right "A" pillar.
Z7/30	In harness tray, at base of windshield.
Z7/31	In wiring channel, by left front door sill.
Z7/33	In wiring channel, at base of right "A" pillar.
Z7/37	Approximately, 100 mm from CTEL transmitter-receiver connector.
Z11/1	Under center console.
Z11/2	Under center console.
Z12	Under center console.
Z21/5	In wiring channel, by left rear door sill.
Z21/6	In wiring channel, by left rear door sill.
Z21/10	Under center console.
Z21/11	In wiring channel, by right rear door sill.
Z28/18	In wiring channel, by left rear door sill.
Z28/29	At left front of luggage compartment.
Z28/30	At left front of luggage compartment.
Z29/1	In wiring channel, by left rear door sill.
Z29/2	In wiring channel, by left rear door sill.
Z30	In harness tray, at base of windshield.
Z30/1	In harness tray, at base of windshield.
Z30/2	In harness tray, at base of windshield.
Z30/3	In wiring channel, by right rear door sill.
Z30/4	In wiring channel, by right rear door sill.
Z37	In wiring channel, by right rear door sill.
Z37/1	In wiring channel, by right rear door sill.
Z37/2	In wiring channel, at base of right "A" pillar.
Z37/3	In wiring channel, at base of right "A" pillar.
Z38	In wiring channel, by left rear door sill.
Z40	In wiring channel, by right front door sill.
Z41	In wiring channel, by right rear door sill.
Z42	In wiring channel, by left rear door sill.
Z44	In wiring channel, by right front door sill.
Z44/1	In wiring channel, by right front door sill.
Z45	In wiring channel, by right rear door sill.
Z81	In harness tray, at base of windshield.
Z81/4	In harness tray, at left rear of center console.
Z84/3	In wiring channel, at base of right "A" pillar.
Z84/4	In wiring channel, at base of right "A" pillar.
Z88	In wiring channel, at base of right "A" pillar.
Z89	In wiring channel, at base of right "A" pillar.
Z90	In wiring channel, at base of right "A" pillar.
Z92	Beneath front fuse box.
Z99/1	In wiring channel, at base of right "A" pillar.
Z99/2	In wiring channel, at base of right "A" pillar.
Z99/3	In wiring channel, by right rear door sill.