Quick Reference Guide (E34) A Thru K

A thru K

A1, General Module Below LH side of rear seat, in P91 Rear Power Distribution Box
A3, Lamp Control Module LH rear of engine compartment, in P90 Front Power Distribution Box
A4, Check Control Module LH rear of engine compartment, in P90 Front Power Distribution Box
A5, Relay Module Below LH side of rear seat, in P91 Rear Power Distribution Box
A7, ABS Electronic Control Unit In P93 E-Box, behind RH front shock tower
A8, Cruise Control Module (Tempomat) In P93 E-Box, behind RH front shock tower
A12, Diagnostic Module (SRS) Behind LH side of dash, on LH side of steering column
A16, Compressor Control Unit Inside LH kick panel
A17, Servotronic Control Unit Inside LH kick panel Not in US
A18, HIFI Amplifier LH side of luggage compartment, on brace
A31, Defogger Control Unit Behind center of dash, RH side of IHKR plenum Not in US
A200, Motronic Control Unit (DME) In P93 E-Box, behind RH front shock tower
A300, Electronic Transmission Control Unit (AEGS) Inside RH kick panel
A9000, Integrated Climate Regulation Control Unit (IHKR) Behind center of dash, ahead of IHKR plenum

B1, Right Front Speed Sensor Behind RH front wheel
B2, Left Front Speed Sensor Behind LH front wheel
B3, Right Rear Speed Sensor Behind RH rear wheel, on axle
B4, Left Rear Speed Sensor Behind LH rear wheel, on axle
B6, Fuel Tank Sensor Below luggage compartment, through RH access panel, RH side of spare tire
B7, Low Pressure Switch RH front of engine compartment, below washer reservoir
B8, High Pressure Switch RH front of engine compartment, below washer reservoir
B9, Intermediate Pressure Switch RH front of engine compartment, below washer reservoir
B10, Vehicle Speed Sensor Rear of car, on differential
B11, Left Heat Exchanger Temperature Sensor Behind LH side of dash, in LH side of IHKR plenum
B12, Right Heat Exchanger Temperature Sensor Behind RH side of dash, in RH side of IHKR plenum
B13, Outside Temperature Sensor Behind center of cowl, on RH side of M30 Blower Motor
B14, Evaporator Temperature Sensor Behind LH side of dash, on lower LH side of IHKR plenum
B15, Electro-Hydraulic Converter (Servotronic) Lower LH front of engine compartment, behind LH front wheel Not in US
B16, Left Front Brake Pad Sensor Behind LH front wheel, on caliper
B17, Right Rear Brake Pad Sensor Behind RH rear wheel, on caliper
B18, Brake Fluid Level Switch (M20 Engine) LH rear of engine compartment, top of brake fluid reservoir
B18, Brake Fluid Level Switch (M30 Engine) LH rear of engine compartment, top of brake fluid reservoir
B21, On-Board Computer Temperature Sensor Under LH side of front bumper
B201, Cylinder Identification Sensor RH front of engine, near distributor
B202, Engine Speed/Reference Point Sensor Front of engine, below distributor
B203, Oxygen Sensor (M30 Engine) In top of catalyst, near rear of transmission
B203, Oxygen Sensor (M20 Engine) Lower RH side of engine compartment
B204, Coolant Temperature Sensor (M30 Engine) On coolant inlet, near valve cover
B204, Coolant Temperature Sensor (M20 Engine) On coolant inlet, near valve cover
B205, Oil Level Sensor (M20 Engine) On bottom of oil pan
B205, Oil Level Sensor (M30 Engine) On bottom of oil pan
B206, Oil Pressure Switch (M30 Engine) Top rear of engine, rear of cylinder head
B206, Oil Pressure Switch (M20 Engine) Lower LH front of engine
B207, Coolant Temperature Sender (M30 Engine) On coolant inlet, near valve cover
B207, Coolant Temperature Sender (M20 Engine) On coolant inlet, near valve cover
B208, Air Flow Meter (M20 Engine)LH side of engine
B208, Air Flow Meter (M30 Engine) Top center of engine, ahead of oil fill cap
B210, Temperature Switch In P93 E-Box, behind RH front shock tower
B900, Jumper Plug LH rear of engine compartment, in P90 Front Power Distribution Box

C100, Contact Ring Inside steering wheel
C900, Defogger Coupler In RH "C" Pillar

D100, Diagnostic Connector LH rear of engine compartment, RH side of shock tower

E48, Door Lock Heater In door, at key lock assembly
E51, Left Washer Jet Heater Under cover, on engine hood
E52, Right Washer Jet Heater Under cover, on engine hood
E56, Driver's Seatback Heater In back of driver's seat
E57, Driver's Seat Heater In driver's seat
E58, Passenger's Seat Heater In passenger's seat
E59, Passenger's Seatback Heater In back of passenger's seat

F0, Fusible Link 80A RH side of engine compartment
F99, Fusible Link 50A (535i)Below RH side of rear seat
F99, Fusible Link 50A (525i) Below RH side of rear seat

G1, Battery (M30 Engine) Below RH side of rear seat
G1, Battery (M20 Engine) RH front of engine compartment
G2, Alternator Lower LH front of engine
G5, Driver's Air Bag Generator Inside center of steering wheel

H2, Left Horn Front of car, behind grille
H3, Right Horn Front of car, behind grille
H10, Chime Module Behind LH side of dash, mounted in hush panel
H60, Audible Turn-Signal Relay Below steering column
H9002, On Board Computer Antitheft Horn Behind center of cowl

K1, Starter Relay LH rear of engine compartment, in P90 Front Power Distribution Box
K2, Horn Relay LH rear of engine compartment, in P90 Front Power Distribution Box
K3, Unloader Relay, KLR LH rear of engine compartment, in P90 Front Power Distribution Box
K4, Blower Relay LH rear of engine compartment, in P90 Front Power Distribution Box
K5, Washer Pump Relay In P90 Front Power Distribution Box Not in US
K9, Unloader Relay, KL15 In P90 Front Power Distribution Box
K11, Wiper Relay Below LH side of rear seat, on P91 Rear Power Distribution Box
K12, Wiper Pressure Control (ADV) Relay Below LH side of rear seat, on P91 Rear Power Distribution Box
K13, Rear Defogger Relay Below LH side of rear seat, on P91 Rear Power Distribution Box
K15, Electric Power Protection Relay Below LH side of rear seat, on P91 Rear Power Distribution Box
K16, Hazard Flasher Relay LH rear of engine compartment, in P90 Front Power Distribution Box
K19, Compressor Control Relay LH side of engine, in auxiliary relay box
K21, Normal Speed Relay In P92 Auxiliary Relay Box
K22, High Speed Relay LH side of engine compartment, in P92 Auxiliary Relay Box
K33, Air Conditioning Relay LH side of engine compartment, in P92 Auxiliary Relay Box
K50, Water Pump Relay In P90 Front Power Distribution Box
K61, Unloaded Relay In P90 Front Power Distribution Box
K65, Driver's Seat Heater Relay Inside Driver's Seat Back
K66, Passenger's Seat Heater Relay Inside Passenger's Seat Back
K91, On-Board Computer Horn Relay Below LH side of rear seat, ahead of P91 Rear Power Distribution Box
K201, Fuel Pump Relay (M20 Engine) In P93 E-Box, behind RH front shock tower
K201, Fuel Pump Relay (M30 Engine) In P93 E-Box, behind RH front shock tower
K202, Main Relay (M20 Engine) In P93 E-Box, behind RH front shock tower
K202, Main Relay (M30 Engine) In P93 E-Box, behind RH front shock tower
K203, Oxygen Sensor Relay In P93 E-Box, behind RH shock tower