BUZZERS, RELAYS & TIMERS
| Component | Location | |
|---|---|---|
| ABS Relay | In engine compartment fuse/relay block. (Схема №1) | |
| A/C Compressor Control Relay | In engine compartment fuse/relay block. (Схема №1) | |
| Air Pump Relay | In electrical box, behind right front shock tower. | |
| Auxiliary Water Pump Relay | In engine compartment fuse/relay block. (Схема №1) | |
| Blower Relay | In engine compartment fuse/relay block. (Схема №1) | |
| Central Locking Trunk Lid Motor Relay | On right side of luggage compartment, behind side panel. | |
| Electric Power Protection Relay | In passenger compartment fuse/relay block. (Схема №2) | |
| Electro-Hydraulic Lock Relay | On right side of engine compartment, in front of electrical box. | |
| Fuel Pump Relay | Behind right shock tower. | |
| Full Load Cut-Off Relay | Below right side of dash. | |
| Hazard Flasher Relay | In engine compartment fuse/relay block. (Схема №1) | |
| High Speed Relay | On auxiliary relay block, in engine compartment. (Схема №3) | |
| Horn Relay | In engine compartment fuse/relay block. (Схема №1) | |
| Left Park Light Relay | Below left side of dash. | |
| Main Relay | Behind right shock tower, in front of electrical box. | |
| Normal Speed Relay | On auxiliary relay block, in engine compartment. (Схема №3) | |
| On-Board Computer Horn (Alarm) Relay | Under left side of rear seat, behind fuse/relay block. | |
| Oxygen Sensor Relay | In electrical box, behind right front shock tower. | |
| Rear Defogger Relay | In passenger compartment fuse/relay block. (Схема №2) | |
| Rear Window Motor Relay | On right side of luggage compartment, behind side panel. | |
| Rear Window Relay | On right side of luggage compartment, behind side panel. | |
| Seat Heater Relays | ||
| Front Seats | Under each front seat. | |
| Rear Seat | Under left side of rear seat. | |
| Starter Relay | In engine compartment fuse/relay block. (Схема №1) | |
| Unloader Relays (3) | In engine compartment fuse/relay block. (Схема №1) | |
| Washer Pump Relay | In engine compartment fuse/relay block. (Схема №1) | |
| Windshield Wiper Relay | ||
| Front | In passenger compartment fuse/relay block. (Схема №2) | |
| Rear | On right side of luggage compartment, behind side panel. | |
BUZZERS, RELAYS & TIMERS LOCATION
CIRCUIT PROTECTION DEVICES
| Component | Location | |
|---|---|---|
| Auxiliary Relay Block | In engine compartment, on left front side of fenderwell. (Схема №3) | |
| Fuse/Relay Block | ||
| Engine Compartment | On left rear corner of engine compartment. (Схема №1) | |
| Passenger Compartment | Under left side of rear seat. (Схема №2) | |
CIRCUIT PROTECTION DEVICES LOCATION
CONTROL UNITS
| Component | Location |
|---|---|
| ABS/ASC Elec. Control Unit | Behind left side of dash. |
| ABS Control Unit | In electrical box, behind right shock tower (module closest to shock tower). |
| A/C Compressor Control Unit | Behind left kick panel. |
| Air Intake Control Unit | In electrical box, behind right front shock tower. |
| Anti-Theft Module | Under left side of rear seat. |
| Automatic Air Recalculation Control Unit | Behind left kick panel. |
| Check Control Module | In engine compartment fuse/relay block. (Схема №1) |
| Chime Module | Under left side of dash (round unit with 3-pin & 4-pin connectors). |
| Crash Control Module | In engine compartment fuse/relay block. (Схема №1) |
| Cruise Control Module | In electrical box, behind right shock tower (2nd module near firewall). |
| Digital Motor Electronics (DME) Control Unit | In electrical box, behind right front shock tower. |
| EML Control Unit | In electrical box, behind right front shock tower. |
| Electronic Trans. Control Unit (A/T) | Behind right kick panel. |
| General Module | In passenger compartment fuse/relay block. (Схема №2) |
| Headlight/Front Foglight Cleaning System Module | On auxiliary relay block. (Схема №3) |
| Integrated Climate Regulation Control Unit | Behind left center of dash, on left side of A/C-heater plenum. |
| Light Control Module | In engine compartment fuse/relay block. (Схема №1) |
| Memory Seat/Mirror Control Unit | Under left side of dash. |
| Power Sun Roof Control Unit | Under left side of dash. |
| Rear Wiper/Washer Interval Control Unit | On left side of luggage compartment, behind side panel. |
| Relay Module | In passenger compartment fuse/relay block. (Схема №2) |
| Servotronic Control Unit | Behind left kick panel. |
| SRS (Air Bag) Diagnostic Module | Behind left side of dash, to left of steering column. |
| Wheel Camber Control Unit | Below right rear of vehicle, near differential. |
CONTROL UNITS LOCATION
SENDING UNITS & SENSORS
| Component | Location | |
|---|---|---|
| ABS Wheel Speed Sensors | Behind each wheel hub. | |
| A/C-Heater System | ||
| Evaporator Temperature Sensor | To right of accelerator pedal, on A/C-heater plenum. | |
| Outside Temperature Sensor | On right end of blower motor. | |
| Air Bag Crash Sensors | ||
| Left | On left inner fender, next to auxiliary relay block. | |
| Right | On right inner fender, forward of right shock tower. | |
| Airflow Meter | In air intake tube between air cleaner and throttle body. | |
| Brake Pad Wear Sensor | On each front and rear brake caliper. | |
| Coolant Temperature Sensor | At front of engine, on coolant thermostat housing. | |
| Cylinder Identification Sensor | Clamped onto spark plug wire near distributor. | |
| Engine Speed / Reference Point Sensor | Front of engine, below distributor. | |
| Fuel Tank Sensor | In right side of luggage compartment, right of spare tire. | |
| Heat Exchanger Temperature Sensor | ||
| Left | Behind left center of dash, on left side of A/C-heater plenum. | |
| Right | Behind right center of dash, on right side of A/C-heater plenum. | |
| Intake Air Temperature Sensor | Near airflow meter. | |
| Oil Level Sensor | On bottom of engine oil pan, on left front of engine. | |
| On-Board Computer Temperature Sensor | Under right side of front bumper. | |
| Temperature Gauge Sending Unit | At front of engine, on coolant thermostat housing. | |
| Vehicle Speed Sensor | In rear differential. | |
SENDING UNITS & SENSORS LOCATION
MOTORS
| Component | Location | |
|---|---|---|
| Air Circulation Door Motor | Behind left center of dash, on left side of A/C-heater plenum. | |
| Auxiliary Cooling Fan Motor | In front of radiator, behind front bumper. | |
| Auxiliary Water Pump Motor | On left end of firewall. | |
| Blower Motor | Behind center of firewall (engine compartment). | |
| Defroster Door Motor | Behind left center of dash, on left side of A/C-heater plenum. | |
| Fresh Air Door Motor | Behind left center of dash, on left side of A/C-heater plenum. | |
| Footwell Door Motor | ||
| Left | Behind left center of dash, on left side of A/C-heater plenum. | |
| Right | Behind right center of dash, on right side of A/C-heater plenum. | |
| Gas Filler Lock Motor | On right side of luggage compartment, behind wheelwell. | |
| Right Mixing Door Motor | Behind right center of dash, on right side of A/C-heater plenum. | |
| Windshield Washer Motor | In washer fluid reservoir. | |
| Windshield Wiper Motor | Behind left end of firewall. | |
MOTORS LOCATION
SOLENOIDS & SOLENOID VALVES
| Component | Location |
|---|---|
| Evaporative Purge Valve | Front left corner of engine compartment. |
| Idle Speed Actuator (Control Valve) | In air intake tube between airflow meter and throttle body. |
SOLENOIDS & SOLENOID VALVES LOCATION
SWITCHES
| Component | Location | |
|---|---|---|
| A/C Pressure Switches | Below washer fluid reservoir. | |
| A/T Range Switch | Under console, at base of shift lever. | |
| Back-Up Light Switch | On left side of transmission. | |
| Brake Fluid Level Switch | In brake fluid reservoir cap. | |
| Brake/Stoplight Switch | On bracket, above brake pedal. | |
| Clutch Switch | On bracket, above clutch pedal. | |
| Coolant Level Switch | On top of coolant reservoir (expansion tank). | |
| Coolant Temperature Switch | On top right of radiator. | |
| Engine Hood Switch | On left rear corner of engine compartment. | |
| Inertia Switch | Under center of rear seat. | |
| Kickdown Switch (A/T) | Under accelerator pedal. | |
| Oil Pressure Switch | ||
| 525i | On left front of cylinder block, near oil pan. | |
| 535i | At rear of engine, in cylinder head. | |
| Parking Brake Switch | Under console, at base of parking brake lever. | |
| Safety Switch | On shift console, next to shift lever. | |
| Sun Roof Limiter Switch | Behind headliner, above rear view mirror. | |
| Throttle Switch | Top of engine in front of air valve assembly. | |
SWITCHES LOCATION
MISCELLANEOUS
| Component | Location |
|---|---|
| Antenna Amplifier | On left "C" pillar. |
| Anti-Theft Alarm Horn | At right end of blower motor. |
| Blower Motor Resistor | Behind left side of dash, on left rear of plenum. |
| Diagnostic Connector (20-Pin) | Mounted outside of engine compartment fuse/relay block. |
| Hi-Fi (Stereo) Amplifier | On left wall inside trunk, on brace. |
| Temperature Distribution Potentiometer | Above radio, between air outlets. |
MISCELLANEOUS LOCATION