BMW 1989-1995 525i Service Manual page 469

WARNING
Your comm on sense. good judge·
ment. and general alertness are cru-
cial to safe and successful service
work . Before attempting any work on
your BMW. read the warnings and
cautions on page vii and the copyright
page at the Iront of the manual.
Review these warn ings and cautions
each time you prepare to work on
your BMW. Please also read any
warn ings and cautions that accom-
pany Ihe procedures in the manual.
E
Electrical system
fuses and relays
control modu les 610-1
distribution box. front 610-1
distribution box. rear 610 -1
E-box 610 -1
fuse positions 610 -1
relay panel. auxiliary 610 -1
general information 600- 1
safety precautions 600 -1
test equipment 600 -1
voltage and polarity 600 -1
wiring 600· 1
term inal and circuit numbers 600 -3
troubleshooting
continuity. checking 600 -5
short circuit. checking 600 -5
short circuit. using ohmmeter 600 ·6
short circu it. using voltmeter 600 ·6
voltage. measu ring 600 ·4
voltage and ground. check ing 600 -4
voltage drop. checking 600 -4
wiring
codes and abbreviations 600 -2
wiring diagrams EWD -l
Emblem
See Exterior trim
Engine
connecting rods 100·1
cooling system 100·4
See also Cooling system
crankshaft 100-1
cylinder block 100-1
cylinder head 100-2
engine management system 100·3
fuel supply system 100 ·2
general information 100-1
lubrication system 100-2
See also Lubrication system
pistons 100· 1
troublesho oting. driveab ility
air flow measu rement 100-12
basic requirements 100-16
battery voltage 100-12
carbon deposits 100-11
engine 100-7
engine light fault codes. OME 100·9
Engine (cont.)
engine settings. basic 100 -12
fuel supply 100-14
See also Fuel injection·OME
trouble shooting
ground connections 100-13
mechanical cond ition 100-11
on-board diagnostics (O BO) 100-8
oxygen sensor 100-12
preventive maintenance 100 -12
vacuum leaks 100 -12
warnings and cautions 100·8
wir ing harness connections 100-13
troubleshooting. mechanical
compression test 100-5
engin e not running 100·5
fluid leaks 100·4
fuel consumption 100·5
low power 100-5
noise 100·4
oil consumption 100·5
smoking 100-4
valvetrain 100-2
See also Cylinder head and
valvetrain
VANOS (Variable Valve Timing) 100·2
See also Camshaft timing chain
Engine removal and Installation
eng ine. rem ovinglinstalling
M20 engine 110-1
M30 eng ine 110-9
M50 engine 110-4
M60 eng ine 110-12
general information 110 ·1
Evaporator
See
Heating and air conditioning
Exhaust system
components 180-1
general information 180 -1
manifolds
M20/M30/M50 eng ines . removing/
installing 180·4
M60 eng ine left . removing. / insla lling
180-4
M60 engine right . removing/
installing 180·5
remov ing/installing 180·3
Expansion tank
See Coo
ling system
Exterior lighting
general information 630· 1
lighti ng, front
foglight assembly. rem oving/
installing 630 -3
headlight assembly, removing /
installing 630· 1
headlight bulb, replacing 630· 1
headlight lens. removing/installing
630 -1
turn signal assembly, removing/
installing 630 -3
side marker assembly and bulb.
replacing 630 -4
lighting. rear
brake light bulb. center (sedan).
replacing 630 -5
IN DEX
3
Exterior lighting (cont.)
license plate light bulb. removing/
installing 630 ·5
side marker assembly and bulb.
replacin g 630 -5
lighting. rear
tail light assembly. removing/
installing 630 ·4
taillight bulb. replacing 630·4
Exterior trim. bumpers
BMW emblem , removing/installing
510 -1
bod y side mouldings. replacing 510· 1
bumpers. remov inglinstalling 510·3
general information 510· 1
grille
center. rem oving/ins talling 510 -2
side. removing /installing 510-3
mirror
glass. replacing 510·2
remov ing/installing 510 ·2
F
Fan switch
See Heating and air conditioning
Fenders . eng ine hood
eng ine hood
aligning 410 ·3
hinge. replacing 410 -3
lock cable. replacing 410 -3
removing/installing 410 ·2
strut. gas-pressure. replacing 410 -4
fender. front. remov inglinstalling
410 · 1
general information 410 -1
Final drive 331 -1
oil, draining and filling 331·4
oil seal 331·2
flange . replacing 331-3
input shaft . replacing 331-3
removing. / installing 331-2
rubber mounts . replacing 331 -2
Firing order, ignition
See 120 Ignition
System-OME
Flex disc
See Oriveshaft
Fluids and lubricants
See Maintenance program
Foglight
See Exterior lighting
Front suspension
components 310 -1
control arm
bush ing, replacing 310 -6
removing/installing 310·5
general information 310 -1
ride height 310·5
shock absorbers
See strut assembly
springs
See strut assembly
stabilizer bar, removingflnstalling
310 ·8