Mercedes-Benz 190E 1992 - ELECTRICAL COMPONENT LOCATOR 1992 MERCEDES-BENZ ELECTRICAL COMPONENT LOCATOR

Mercedes-Benz 190E 1992 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz 190E 1992 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
ABS Return Pump Relay	On left side of engine compartment.
ABS Solenoid Valve Relay	On left side of engine compartment.
A/C Compressor Relay	In fuse/relay block.
A/C Power Relay	In fuse/relay block. See Fig. 1 .
Antenna Motor Relay	Behind left rear wheelwell, inside motor.
Auxiliary Fan Relay	In auxiliary relay block, in front of fuse/relay block. See Fig. 2 .
Combination Relay (Turn Signal, Rear Defogger, Windshield Wiper)	In fuse/relay block.
Dome Light Delay Relay	Under center of dash, near A/C vacuum valves.
Fuel Pump Relay (See View "C")	On right side of firewall, near battery. See Fig. 3 .
Fuel Pump Relay	On right side of firewall, near battery. See Fig. 4 .
Heated Seat Relays
Left Front	Under carpeting, forward of left front seat.
Right Front	Under carpeting, forward of left front seat.
Idle Control Protection Relay	In engine compartment, behind battery.
ABS Overvoltage Protection Relays	In fuse/relay block.
CIS-E Fuel Injection Overvoltage Protection Relays (See View "D")	On right side of firewall, near battery. See Fig. 3 & Fig. 4 .
Power Seat Relays	In auxiliary relay block, in front of fuse/relay block. See Fig. 2 .
Power Window Relay	In fuse/relay block. See Fig. 1 .

Mercedes-Benz 190E 1992 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
A/C Blower Motor In-Line Fuse	On left side of firewall, behind shock tower.
Auxiliary Relay Block	In engine compartment, in front of fuse/relay block.
Fuse/Relay Block	At left rear corner of engine compartment. See Fig. 1 .

Mercedes-Benz 190E 1992 CONTROL UNITS LOCATION

Component	Location
A/C Protective Cut-Out Unit	On left side of engine compartment.
ABS Control Unit	In engine compartment, behind battery.
Anti Theft Alarm Control Unit	On Right front footwell area.
CIS-E Fuel Injection Control Unit (See View "A")	On right side of firewall, near battery. See Fig. 3 .
Cruise Control Unit	Under right side of dash, behind kick panel.
EGR Control Unit	Above right side of passenger's footwell.
Electronic Idle Speed Controller (Diesel)	On right side of firewall, near battery.
Heated Seats Control Units	Under left side of rear seat.
Idle Speed Control Unit	On left side of engine compartment, behind A/C compressor control unit.
Illumination Control Unit	Under left side of dash, below instrument cluster.
Key/Light Warning Module	To right of parking brake support.
Overvoltage Protection Control Unit	On left side of engine compartment.
Power Seat Control Unit	Under driver's seat.
SRS Control Unit/Sensor	Under center console, forward of shift lever. See Fig. 5 .
Switch Control Unit	On right side of firewall.
Transistorized Ignition Control Unit	On front left side of engine compartment.
Wiper Interval Control Module	Behind left side of instrument cluster.

Mercedes-Benz 190E 1992 SENDING UNITS & SENSORS LOCATION

Component	Location
ABS Wheel Sensors	On each wheel hub.
A/C Ambient Temperature Sensor	On top of A/C evaporator housing.
A/C In-Car Temperature Sensor	On center of roof, near dome light.
A/C RPM Sensor (Diesel)	On left side of bellhousing.
Airflow Sensor (See View "G")	On top of intake manifold, next to fuel distributor. See Fig. 3 .
Anti-Towing Sensor	Below left side of rear seat.
Brake Fluid Level Sensor	In brake fluid reservoir.
Brake Pad Wear Sensors	In each front brake pad.
Coolant Temperature Sensor	On left rear corner of cylinder head. See Fig. 3 .
Cruise Control Speed Sensor	On back of speedometer.
Intake Air Temperature Sensor	On engine, next to fuel distributor.
Oil Temperature Sending Unit	On oil filter housing.
Outside Temperature Sensor	Behind front license plate holder.

Mercedes-Benz 190E 1992 MOTORS LOCATION

Component	Location
A/C-Heater Blower Motor	Above passenger's footwell.
Central Locking Pump	Under right rear seat cushion.
Heater Auxiliary Coolant Pump	In heater coolant return hose.
Power Antenna Motor	In trunk, above left wheelwell.
Sun Roof Motor	In trunk, above left wheelwell.

Mercedes-Benz 190E 1992 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
ABS Solenoid Valves	On left side of engine compartment.
A/C Switch-Over Valve	Above passenger's footwell, by blower motor.
Camshaft Timing Solenoid	On intake camshaft front cover.
Cold Start Valve	In front of fuel distributor.
EGR Solenoid Valve	On right side of engine compartment.
EGR Switch-Over Valve	Under intake manifold.
Kickdown Solenoid (Auto. Trans.)	On right rear corner of transmission.
Upshift Delay Solenoid (Auto. Trans.)	On left side of transmission.

Mercedes-Benz 190E 1992 SWITCHES LOCATION

Component	Location
A/C High/Low Pressure Switches	On receiver-drier.
A/C Receiver-Drier Temperature Switch	On receiver-drier.
A/C Temperature Switch	On top of thermostat housing.
Back-Up Light Switch (Man. Trans.)	At base of shift lever.
Back-Up Light Switch (Auto. Trans.)	On left side of transmission.
Brake/Stoplight Switch	On top of brake pedal support.
Cruise/Clutch Switch	On clutch pedal support.
Deceleration Cut-Off Switch (See View "J")	On top of intake manifold, on throttle body linkage. See Fig. 3 .
Engine Speed Switch	In engine compartment, on left wheelwell.
Kickdown Switch (Auto. Trans.)	On floorboard, beneath accelerator pedal.
Low Oil Level Switch	On left side of oil pan.
Parking Brake Switch	On parking brake support.
Stoplight Switch	On brake pedal assembly.
Throttle Valve Switch (See View "K")	On intake manifold, at base of throttle body. See Fig. 3 .
Thermo Time Switch	On front right side of engine block.

Mercedes-Benz 190E 1992 MISCELLANEOUS LOCATION

Component	Location
ABS Hydraulic Unit	On front left side of engine compartment.
A/C Heater Blower Motor Resistors	On left side of engine compartment, behind battery.
A/C Feedback Potentiometer	On top of A/C-heater box.
Altitude Correction Capsule (See View "B")	On right side of firewall, behind battery. See Fig. 3 .
Central Locking Actuator	In driver's door panel.
Cruise Control Amplifier	On right footwell area.
Diagnostic Connectors
All Models (See View "M")	In engine compartment, on left front fender. See Fig. 3 .
California Models (See View "E")	On right side of firewall, near battery. See Fig. 3 .
Electro-Hydraulic Actuator (See View "H")	On top of intake manifold, to rear of fuel distributor. See Fig. 3 .
Idle Speed Air Valve	On top of intake manifold, in front of fuel distributor. See Fig. 3 .
Ignition Module	In engine compartment, in front of left front fender.
SRS Emergency Tensioning Retractor	On left and right inner door pillar posts. See Fig. 5 .
SRS Energy Accumulator	Under passenger's footwell. See Fig. 5 .
SRS Voltage Converter	On front right footwell area. See Fig. 5 .