BMW 3 (E46). Manual — part 253
Component
Year, model
Location
Refer to
Valet position switch
1999 - 2001
On trunk lock cylinder
VANOS solenoid,
exhaust side
1999 - 2001
Right front of cylinder head
Fig. 29
VANOS solenoid,
intake side
1999 - 2001
Left front of cylinder head
Fig. 17
Variable camshaft
control
see VANOS
Volute spring
1999 - 2001
In center of steering wheel under
driver airbag
Washer fluid level
sensor
1999 - 2001
Bottom of windshield washer tank
Wheel speed sensor
see ABS wheel speed sensor entries
Window anti-trap
strip
Sedan, Sport
Wagon
Top of window frame in door
Window lock-out
switch, rear
Sedan, Sport
Wagon
Left side shifter bezel
Window motors
1999 - 2001
Inside doors
Window switches
1999 - 2001
On shifter bezel
Windshield washer
nozzle heaters
1999 - 2001
In nozzles at rear of engine hood
Windshield washer
pump
1999 - 2001
At rear of washer tank, right front
engine compartment
Windshield washer
relay
1999 - 2001
Left rear engine compartment in
E-box
Fig. 16
Wiper motor
1999 - 2001
Rear of engine compartment, behind
bulkhead
Fig. 20
Wiper/washer switch
(stalk)
1999 - 2001
Right side steering column
Yaw sensor
see ABS/DSC rotational rate (yaw)
sensor
ZKE V control
module
see General Module (GM V)
Engine compartment electrical
components
Fig. 17 Engine compartment (1999 323i)
1 - Data link connector (DLC) (1999 -
mid-2000 models)
2 - Hood contact switch
3 - B+ jumper connector
4 - DSC control module/hydraulic unit
5 - Secondary air pump
6 - Interior microfilter housing
7 - Resonance valve, intake manifold
(changeover valve)
8 - Mass air flow sensor
9 - Brake fluid level sensor
10 - Ground lug X6454
11 - Electronics box (E-box)
12 - Air quality sensor (AUC) (for
automatic recirculation control)
13 - Intake camshaft VANOS solenoid
14 - Engine cooling fan (electric)
Fig. 18 Left rear corner of engine
compartment (near E-box)
1 - Brake fluid level sensor
2 - DSC precharge pump (Teves DSC
MK 20/60)
3 - Brake fluid pressure sensor
Fig. 19 Right rear corner of engine
compartment (Teves DSC MK 20/60)
1 - DSC hydraulic unit
2 - Ground jumper connection
3 - Hood contact switch
4 - B+ jumper connection
5 - DSC control module
Fig. 20 Rear of engine compartment,
behind bulkhead
1 - Wiper assembly electrical harness
connector
Fig. 21 Under rear of intake manifold
1 - Engine coolant temperature (ECT)
sensor
Fig. 22 Left rear of engine block, under
intake manifold
1 - Starter motor terminal 50
2 - Starter motor terminal 30
3 - Crankshaft position sensor
4 - Bore hole for crankshaft locking tool
Fig. 23 Under intake manifold
1 - Idle speed control valve
2 - Throttle housing (MDK/EDK)
Fig. 24 Under intake manifold, at
cylinder head
1 - Knock sensor cylinder 1 - 3
2 - Knock sensor harness connector
3 - Knock sensor cylinder 4 - 6
Fig. 25 Center top of engine, under
covers
1 - Intake air temperature (IAT) sensor
2 - Ignition coils
3 - Post-catalyst oxygen sensor
connectors
4 - Precatalyst oxygen sensor
connectors
5 - Precatalyst oxygen sensors
Fig. 26 Left front of engine, at oil filter
housing
1 - Oil/coolant temperature sensor
2 - Oil pressure switch
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