1999 BMW Z3M COUPE air conditioning



COMPONENT LOCATION CHART









COMP.8500.0 7100.0LOCATION DESCRIPTION


H54z .

REAR RIGHT MID–HIGH RANGE
SPEAKER . . . . . . . . . . . . . . . . . . . . . . . . . .
in rear speaker box (ROADSTER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

07-3




H54z .

REAR RIGHT MID–HIGH RANGE
SPEAKER . . . . . . . . . . . . . . . . . . . . . . . . . .
in roof panel (COUPE)




H55 . . LEFT FRONT MIDRANGE SPEAKER . . . . in upper LH front door
H55z . REAR LEFT MID–HIGH RANGE SPEAKER in rear speaker box (ROADSTER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

H55z .

REAR LEFT MID–HIGH RANGE SPEAKER

in roof panel (COUPE)




H56 . . LEFT REAR HIGH RANGE SPEAKER . . . . in roof panel
H57 . . LEFT REAR LOW RANGE SPEAKER . . . . in rear speaker box
H58 . . LEFT FRONT LOW RANGE SPEAKER . . . in lower LH A–pillar

H59 . .
LEFT FRONT HIGH RANGE SPEAKER . .
in upper LH front door



H500 . REAR WOOFER . . . . . . . . . . . . . . . . . . . . . . . in rear speaker box (COUPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46-1
H500 . REAR WOOFER . . . . . . . . . . . . . . . . . . . . . . . in rear speaker box (ROADSTER)
I1008 . SEAT MAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . in passenger’s seat area
K2 . . . . HORN RELAY . . . . . . . . . . . . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 09-2

K4 . . . .

BLOWER RELAY . . . . . . . . . . . . . . . . . . . . . .

rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . .

09-2


K9 . . . . UNLOADER RELAY, TERMINAL 15 . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 09-3
K16 . . HAZARD FLASHER RELAY . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 09-2
K19 . . COMPRESSOR CONTROL RELAY . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 09-3

K21 . .
NORMAL SPEED RELAY . . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . .
09-3

K22 . .

HIGH SPEED RELAY . . . . . . . . . . . . . . . . . . .

rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . .

09-3


K33a . AIR CONDITIONING RELAY, MOTRONIC . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 09-2



COMPONENT LOCATION CHART









COMP.8500.0 7100.0LOCATION DESCRIPTION


S117 . .

LUGGAGE COMPARTMENT LID LOCKING
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . .
in lift gate




S126y DRIVER’S POWER WINDOW SWITCH . . . center console near gearshift lever

S127y
PASSENGER’S POWER WINDOW
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . .
center console near gearshift lever




S143 . CONVERTIBLE TOP ACTUATING SWITCH center console

S164 .

CONVERTIBLE TOP END–POSITION MI-
CRO SWITCH . . . . . . . . . . . . . . . . . . . . . . .

at convertible top linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17-3



S198 .

JET HEATER THERMOSWITCH . . . . . . . . .

on front RH wheel well






S220 .

AIR CONDITIONING/RECIRCULATING
SWITCH ASSEMBLY . . . . . . . . . . . . . . . . .
center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
00-3

S221 . EVAPORATOR CONTROLLER . . . . . . . . . . RH side of LH footwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-2
S232 . COMPRESSOR MAIN SWITCH . . . . . . . . . . TIRE INFLATION SYSTEM
S235 . STARTER IMMOBILIZATION SWITCH . . . . LH footwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
S408 . INTERIOR LIGHT SWITCH . . . . . . . . . . . . . near interior rear view mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-2

S531 .

TEMPERATURE WHEEL SWITCH . . . . . . .

center of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21-3




S559 .

PASSENGER’S AIR BAG CUT–OFF
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . .
center console






S826 .

LUGGAGE COMPARTMENT LIGHT
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . .
underside of luggage compartment lid




S910 . DRIVER’S SEAT LIMIT SWITCH . . . . . . . . . in driver’s seatback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-2
S911 . . PASSENGER’S SEAT LIMIT SWITCH . . . . in passenger’s seatback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-2
S8503 PROGRAM SWITCH . . . . . . . . . . . . . . . . . . . center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1

S8507
KICK–DOWN SWITCH . . . . . . . . . . . . . . . . .
behind gas pedal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19-3



COMPONENT LOCATION CHART









COMP.8500.0 7100.0LOCATION DESCRIPTION
Y2 . . . . AIR CONDITIONING COMPRESSOR . . . . front RH side of engine compartment

Y4z . . .
WATER VALVE . . . . . . . . . . . . . . . . . . . . . . . .
rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14-3

Y5 . . . . DRIVER’S SIDE MIRROR . . . . . . . . . . . . . . . in upper LH front door
Y6 . . . . PASSENGER’S SIDE MIRROR . . . . . . . . . . in upper RH front door
Y19 . . SHIFT–LOCK . . . . . . . . . . . . . . . . . . . . . . . . . . center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-2
Y6101 CYL. 1 FUEL INJECTION VALVE . . . . . . . . on cylinder head

Y6102
CYL. 2 FUEL INJECTION VALVE . . . . . . . .
on cylinder head



Y6103 CYL. 3 FUEL INJECTION VALVE . . . . . . . . on cylinder head
Y6104 CYL. 4 FUEL INJECTION VALVE . . . . . . . . on cylinder head
Y6105 CYL. 5 FUEL INJECTION VALVE . . . . . . . . on cylinder head
Y6106 CYL. 6 FUEL INJECTION VALVE . . . . . . . . on cylinder head

Y6120

EVAPORATIVE EMISSION VALVE . . . . . . .

LH side of engine compartment (Z3 VERSIONS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

44-1


Y6120 EVAPORATIVE EMISSION VALVE . . . . . . . LH side of engine compartment (M VERSIONS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-2
Y6130 IDLE SPEED CONTROL VALVE . . . . . . . . . front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-1
Y6133 AIR PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . rear RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-2

Y6139
LEAKAGE DIAGNOSIS PUMP . . . . . . . . . . .
under LH center of car . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47-1

Y6163 SECONDARY AIR PUMP VALVE . . . . . . . . LH side of engine compartment (M VERSIONS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-2
Y6163 SECONDARY AIR PUMP VALVE . . . . . . . . LH side of engine compartment (Z3 VERSIONS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44-2


Y6167

VALVE, INDIVIDUAL CONTROL INTAKE
SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

39-3




Y6275

VARIABLE CAMSHAFT CONTROL VALVE
1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
on cylinder head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

31-3



A35y
BOARD
COMPUTER
(BC – LOW)
X10245
X18349
7100.0 COMPONENT LOCATION VIEWS
ELECTRICAL CONTROL MODULE LOCATIONS












A6000
ENGINE CONTROL
MODULE (DME)
A8
CRUISE CONTROL
MODULE
(TEMPOMAT)
X782
S220
AIR CONDITIONING/
RECIRCULATING
SWITCH ASSEMBLY K6300
ENGINE CONTROL
MODULE RELAYK6326
UNLOADER RELAY,
TERMINAL 15
X1175



K6304
SECONDARY AIR
PUMP RELAY

X6000

A52
SLIP CONTROL
MODULE
(ABS/ASC)
X22



B18
BRAKE FLUID
LEVEL SWITCH
COMPONENT LOCATION VIEWS










K2
HORN RELAYX111
X372
H1w
ANTI–THEFT HORN
(ALPINE)
K4
BLOWER RELAY
K16
HAZARD FLASHER
RELAYK47
FRONT FOG LIGHT
RELAY
K48
LOW BEAM LIGHT
RELAYK9
UNLOADER RELAY,
TERMINAL 15
K19
COMPRESSOR
CONTROL RELAY
K21
NORMAL SPEED
RELAYK22
HIGH SPEED
RELAY
K94
ENGINE CONTROL
RELAY (ABS/ASC)
K95
VALVE RELAY
(ABS/ASC)

K33a
AIR CONDITIONING
RELAY, MOTRONIC