Troubleshoot BMW 525i 2001 E39 Service Manual
[x] Cancel search | Manufacturer: BMW, Model Year: 2001, Model line: 525i, Model: BMW 525i 2001 E39Pages: 1002
Page 993 of 1002

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WARNING 
Your common  sense, good 
judgement,  and general alertness are 
crucial  lo sale  and 
successlul service 
work. Belore attempling any work  on 
your BMW, be  sure  to read  001 
General  Warnings  and Cautions 
and  lhe copyright  page 
a1 llle Iron1 01 
the manual.  Review lliese warnings 
and  cautions  each time you prepare 
lo  work  on your 
BMW Please  also 
read  any warnings  and 
caulions lhal 
accompany  the  procedures In !he 
manual. 
Component locations 
see Electrical system 
Compression test 
113-5 
Compressor  see 
AlC 
Condenser see 
AlC 
Constant  velocity (CV) joint 
see Maintenance 
see also 
Driveshall 
see also Drive  axles 
Consumer  cutoff 
600-10 
Control arm  see  Front  suspension 
see also Rear  suspension, 
suspension arms 
Coolant (antifreeze)  see  Maintenance 
see  also Cooling  system 
Coolant  pump 
see Cooling system  Cooling system 
coolant bleeding 
170-14 6-cylinder  engine, draininglfilling 
170-10 
V-8 engine,  draininglfilling 170-12 
coolant pump 170-3 
6-cyiinder engine,  replacing 170-1 9 
V-8 engine, replacing 170-20 cooling fan 170-4 
viscous ciutch  fan, removingi 
installing 170-14 
electric  fan, removlngiinstailing 170-1 5 
expansion tank,  removinglinstalling 
170-22 
electrically heated (ciiaracterislic 
map) therrnostat 170-4 
radiator,  removinglinstaliing 170-22 
service 
see Maintenance 
therrnostat  170-16 
transmission  fluid heat exchanger 
170-5 troubleshooting 170-7 
combuslion leal( test 170-10 
pressure  test 
170-9 
Crankshaft oil  seals 
iront 
117-6 
rear  11 9-6 
Crankshaft  speed sensor 
see Ignition syslem 
Crash  sensor 
see 
Airbag system (SRS), side-impact 
airbag crasii sensor 
Cruise control  clutch  switch 612-9 
CV  joint 
see  Maintenance 
see also Driveshalt 
see also  Drive axles 
CV  joint  boot 
see  Maintenance 
see also  Drive axles 
Cylinder  head  removinglinslaliing 
M52 engine 113-8 
M52 TU / M54  engine 113-22 
M62 engine 113-56 
Cylinder  head and valvetrain 
hydraulic lifters, checking  and 
replacing 
116-7 leak  test 116-5 valves  11 6-56 
see 
alsocylinder head  Dashboard 
513-7 
Deck 
lid 
seeTrunk lid 
Diagnostic  monitors 
OED-4 
Diagnostic trouble  codes 
(DTCs) 
080-7 
Digital multimetel 
010-17 
Differential  see  Final  drive 
DLC  (data 
link connector) 020-4, OED-4 
DME  (digital motor  electronics) 
see 
130 under  appropriate  fuel 
injection system 
see also ignition  system 
DM-TL  (detection  module-tank  leak) 
see 
Fuel lank,  leak deteclion  unit 
Drive 
belts 
see  Maintenance 
Dome  light 
seeLighls, interior lights 
Door 
door 
check, replacing 411-4 
hinge adjustment  41 1-5 
loci( 
see Door lock see also Central locking 
removinglinslaliing  41 
1-2 
panel, removinglinstaliing 41 1-7 window 
see  Door window 
Door 
check 
see Door 
Door 
handle 
see  Door lock 
Door  glass 
see  Door window 
Door 
lock 
handles  and loci(s 515-16 
see also Central  locking 
Door 
molding 
510-13 
Door panel  see  Door    
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4 INDEX 
Door window anti-trap 
512-4 convenience openinglclosing 512.4 
regulator and  motor 512-1 1 
service 
512-5 switches 512-3 
see also  Switches 
Double 
VANOS see  VANOS 
Drive 
axle 
CV joint 331-15 CV  joint  boot 331-15 
rernovinglinstalling 331-14 
Drive  belt 
see  Maintenance 
Driveabiiity troubleshooting 
100-4 
Driveaway  protection 
see  EWS  (eiectronic immobilization) 
Driveshaft  aligning 
260-7 
center bearing,  replacing 260-12 CV joint,  replacing 260-14 
itex-disc, replacing 260-1 1 
iront  centering  guide, replacing 260-13 
rernovinglinstailing 260-6 
lroubleshooting 260-3 
U-joint 260-3 
DSC 
see Braires 
DTC (diagnostic trouble code) 
OBD-8 
DWA 
see  Anti-theft  alarm 
ECM  (engine  control module) 
see 130 under  appropriate 
iuei 
injection system 
ECT  (engine coolant  temperature) 
sensor  see 130 under  appropriate 
iuei 
injection system 
EDK  adaptation 
130-69 
MS 43.0 130-35 
EHC see  Electronic  iieigiit control (EHC) 
Electric  cooling fan 
see Cooling  system, cooling 
fan 
see also Cooiing  system, eiectric fan 
Electrical switches 
see  Switches 
Electrical system  abbreviations 
600-14 bus System 600-4 
component location  table 610-3 
components 
photos 
610-36 
Sport  Wagon 610-81 engine 121-2 
troubleshooting 600-15 
voltage  and polarily 600-5 wire  color  codes 600-12 
wiring diagrams 600-12 
Electrical  wiring diagrams 
ELE-1 
Eiectricaliy  heated thermostat 
(characteristic  map) 
170-4 
Eiectronic height control  (EHC) 
300-8, 330-44 
Eiectronic immobilization 
see  EWS  (electronic  immobilization) 
Eiectronics box 
(E-box) 
610-37 
Emergencies 
010-18 
Emergency  brake  see 
BraBes, parking  brake  Engine 
see  also  Cylinder  head and  valvetrain 
applications 
100-2 
compression, testing 113-5 
cooling  see Cooiing  system 
crankshaft front oil seai 
see  Crankshaft  oil seals 
cyiinder leak-down  test 113-8 
diagnostic testing 113-1 
drive belts 
see  Maintenance 
driveability troubleshooting 
100-4 
engine management systems 100-2 
see also Ignition 
see  also  Fuel  injection 
fuel supply 
130-6 
ground  connections 100-5 
see also  61 0 identilying ieatures 100-3 
lubrication  svstem 
see 
~ubricetion system 
mount 
on-board  diagnostics 
OBD-I 
oxygensensor 
see  Fuel  injection 
see  also Exhaust system 
Dreventive maintenance 
see  Maintenance 
removal/installation 
Engine  control module (ECM) 
see 130 under  appropriate iuel 
injection system 
Engine  cooiant  temperature  (ECT) 
sensor  see 130 under  appropriate iuel 
injection 
system 
Engine  cooling  fan 
see Cooiing  system, electric  fan 
Engine  hood 
41 
0-6 raising  to service position 410-6 
Engine  troubleshooting 
see Engine, driveability  troubleshooting 
EVa~oratiVe control  svstem 
160-3 see also 130 under aDDroDriate iuel 
injection  system 
Evaporator  see 
NC 
Evaporator temperature sensor see 
NC    
Page 995 of 1002

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INDEX 5 
WARNING 
Your common  sense,  good 
judgement,  and general alerlness  are 
crucial  lo 
safe and successful service ivork. Before attempling any  work  on 
your 
BMW be  sure  lo read  001 
General  Warnings  and  Cautions 
and  the copyright page at  the 
fronl of 
Ihe  manual.  Review  these  warnings 
and 
cautions each lime you  prepare 
to work on  your BMW Please  also 
read  any warnings  and cautions tliat 
accompany Nie procedures  in the 
manual. 
Exhaust manifold  see  Exhaust system 
Exhaust system  diagrams 
180.1 1 
exhaust manifolds,  removinglinstalling 
180-4 muifier, replacing 180-8 
oxygen sensors 180-8 
and catalytic  converter 020-1 9 
see also Fuel  injection 
removinglinstalling 180-2 
see also  Maintenance 
Expansion  tank 
see Cooling  system 
Expansion  valve 
see 
NC 
Exterior  lighting 
see 
Lights 
Exterior  trim 
BMW  emblem 
(Roundel), removing1 
installing 
510-13 body side  molding, replacing 510.13 
grill, removinglinsialiing 510-14 
headlight housing  trim,  removing1 
installing  510-14 
outside  mirror 
510-2 
EWS (electronic  immobilization) 
515-21  ring  antenna, 
iemovinglinstaiting 
320-1 1 
Fan  see Cooling  system  Fault 
codes 
OBD-2 
storage 
100-4. 600.10 
Fender 
front, rernovinglinstailing 
410-2 
Filters see  Maintenance 
Final drive 
lubricant 
speciiicatiorls 020-9 
mounh, replacing 331-12 
oil level 020-26. 331-6 
removinglinslalling 331-5 seals 331-7 
Firing  order 
see  Ignition  system 
FtS 
see Interior protectiorl 
Flex  disc 
see  Driveshaft 
Fluids and lubricants  see Maintenance 
Flywheel  removinglinstalling 210-13 
Fogllght 
see  Lights 
Front centering guide  see Driveshatt 
Front  oil seal 
see 
Crankshaft oil  seals 
Front suspension  control arm 
310-12 description 300-2 
ride  height 300-14 
stabilizer bar,  removinglinstalling 
310-21 
strutslsprings  31 
0-4 
tension strut 310-16 
thrust arm 310-12 variations 310-4 
wheel bearing 310-18 
see also Maintenance 
Fuel  filter 
see  Maintenance 
Fuet injection applications 130-2 
Bosch M5.2, M5.2.1 130-46 
Bosch ME 7.2 130-66 fuel delivery 
see 130 under  appropriate iuel 
injection system 
see  also Fuel pump 
see also 
Fuet tank 
oxygen sensors 
130-72, 180-8 
Siemens  MS 41.1 130-7 Siemens MS  42.0. MS 43.0 130-23 
Fuel  injector 
see 130  under appropriate  fuel 
injection  system 
Fuel  level sender 
160-15 
see also Fuei pump 
Fuel  pressure 
160-10 
see also  Fuel pump 
Fuel  pump 
160-3 
electrical  circuit, testino 160-7 
1 
removinglinstalling  (includes right side 
iuel levei sender) 160-15 
siphon pump, removinglinstaliing 
160-19 
troubleshooting 160-6 see  also Fuel  tank 
Fuel  rail 
see  130 under appropriate  iuel 
injection system 
Fuei  supply 
130-6 
see also  Fuei pump 
see  also 
Fuet lank 
Fuel 
tank 
312-way  valve (running  losses. 
removinglinstalling 
160-24 carbon canister 160-24 
draining  160-20 
evaporative control system 160-3 
expansion  tank, removinglinstalling 
160-23 
I 
leak detection  unit  (LDP or  DM-TL), 
rernovinoiinstallino 160-24 
level senier 160-15 
removinglinstalling 160-21 
Fuse locations 
610-29 
RV (remote  entry) 
see Central 
locl(ing 
Fan  clutch 
see Cooling  system, cooling fan    
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Gaskets and seals 01 
0-9 
Gearshift automatic  transmission 
adjusting 
250-7 
shift interiock.  checkino function " 250-9 
shiftloclc.  checicino function 250-8 - manual transmission 
gearshift  lever, removingiinstalling 
250-5 
steptronic 250-7 
General  module (GM Ill) 
600-8 
see also Central  locking 
Generator  see Battery,  starter, alternator 
Glass  see Door  window 
Glove compartment 
513-16 
see also 
Global  positioning  system 
(GPS) 
620-9 
Grill 
see Exterior  trim 
Grounds 
100-5 
Guide  link 
see Rear  suspension,  suspension 
arms 
Halogen headlight 
630-5 
Hand brake 
see  Brakes, pariring brake 
Handle,  door 
see Door 
locks 
Hatch seeTailgate 
Hazard  warning switch 
see  Switches  Headlight 
housing  trim 
see Exterior  trim 
washer611-17 see also  Lights 
Headlight  spray 
nozzle 
611-17 
Headlight switch 
see  Switches 
Heater  core 
see Heating 
Heater  valve 
see Heating 
Heating  lieater core, replacing 
640-18 
lheater  core temperature sensor, 
removingiinstalling 
640-12 heater  valve, replacing 640-17 
IHKA housing, removinglinstallin~ 
640-21 
see  also NC 
Hood 
410-6 
Hood latch and  release 
410-10 
Hydraulic  valve lifters 
see  Cylinder  head and  valvetrain 
IAT 
(lntalce air temperature)  sensor 
see  130 
under appropriate  fuel 
injection system 
idle  speed  control  valve 
see 130 
under appropriate fuel injection system 
Idle stabilizer 
see  130 
under appropriate  fuel 
injection  system, idie speed controi 
valve 
idler  arm 
320-30 
lgnition coll 
see lgnition  system 
lgnition  interlock 
320-13 
lgnition lock  cylinder 
removingiinstalling 
320-1 1. 612-4 
lgnition  switch 
seeSwifches 
Ignition system 
diagnosis  checking  for 
spark 120-10 
disabling ignition system 120-10 misfire detection 120-6 
oscilioscope diagrams 120.6 
troubleshooting 120-6 
camshaft  position sensors 120-14 coils 120.10 
crankshaft  speed sensor 120-12 firing order 120-9 
knoclc  sensors  120-16 
IHKA 
see NC 
IHKR see NC 
Injector 
see  130 under appropriate 
fuel 
injection system, luel injector 
Input  shaft 
oil seal 
see Manual transmission,  oil seals 
Inspection 
see Maintenance 
Instruments  GPS see Global  positioning  system 
(GPSI layout 6202 
removingiinstalling 620-8 self-testing 620-6 
Intake air temperature sensor  (IAT) 
see 130 under  appropriate fuel 
injection  system 
Intake  manifold 
removingiinstalling 
6-cvlinder enoine  110-10. 113-8. 113-22 - 
V-8 engine (M62) 113-56 
Integral  link 
see  Rear  suspension, suspension 
arms 
lnterior  lights 
see Lights 
lnterior protection 
(FISIUIS) 515-25 
lnterior trim 
513-13 
lnterior ventilation microfilter  see 
NC, ventilation  microfiller    
Page 998 of 1002

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Manual transmission 
applications 200-2. 230-5 
back-up light switch,  replacing 230-6 
gear ratios 230-6 
gearshift 
see Gearshiit 
ID tag 200-2 
fluid 020-1 0. 200-4 fluid service 230-6 
oil  seals 
input shaft  seal, replacing 
230-17 
output  shalt seal,  replacing 230-1 1 
selector 
shaft seal,  replacing 230-8 pilot bearing 210-16 
removallinstallation 230-19 
see also Maintenance 
Map  light 
see Lights, interior 
Mass  air flow 
(MAF) sensor 
see 130 under appropriate  fuel 
injection  syslem 
Master  cylinder 
see Brakes 
see also Clutch,  hydraulics 
MDK 
130-42 
Microfilter  see 
NC, ventilation microfilter 
see also Maintenance 
Mirror  see Exterior  trim 
Misfire  see Ignition  syslem, diagnosis 
Motor  mount 
see  Engine, 
mounl 
MRS  (multiple restraint  system) 
see Airbag system (SRS) 
Muffler 
see Exhaust  syslem 
Neutral safety switch 
see  Automatic transmission, range 
switch 
OED II (on-board diagnostics) 
OED-l 
Oil change  equipment 010-16 
Oil level  sensor 
see Lubrication system 
Oil  pan 
see Lubrication system 
OH pressure 
see Lubrication system 
Oil  pump 
see Lubrication  system 
Oil service  020-1  1 
On-Board Monitor 
640-12 
On-board  diagnostics OED-1 
Outside air temperature  sensor 
610-14 
Outside door handle 
see  Door 
loclc 
Outside mirror  switch 
see  Switches 
Output 
shaft oil  seal 
see  Manual transmission,  oil seals 
Overheating 
see Cooling system,  troubleshooting 
Overload  protection 
600-11 
Oxygen sensors 
130-72, 180-8 
P codes OED-10 
Panic  mode operation 
515-11 
Parking brake 
see Brakes 
see also Maintenance 
Parts,  buying 
010-11 
Pedal  cluster switches 
see  Switches 
Pedal  position  sensor (PWG) 
6-cvlinder 
enqine 
V-8  engine (M62 TU) 130-68 
Pitman arm 
see Steering 
Power  steering 
see  Steering 
Power  steering 
fluid 
see Maintenance 
Power  window switch 
512-3 see also  Switches 
PWG  see Pedal  position sensor 
(PWG) 
Racic and pinion  steering 
see Steering 
Radiator  see Cooling  system 
Radiator cooling fan seeCooling system, cooling fan 
see also Cooling system, electric  fan 
Radiator  grill 
see Exterior 
trim 
Radio 
650-2 see also  Antenna 
see also  Speakers 
Rain sensor 
611-6 
Raising car  safely 
010-5 
Readiness codes 
OED-6 
Rear  door  window 
see Door  window 
Rear  main  seal 
see Crankshalt oil  seals 
Rear  parcel 
sheif 
513-16    
Page 999 of 1002

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INDEX 9 
WARNING 
Your common  sense, good judgemenl, and general alerlness are 
crucial  lo seie  end successful service 
ivork. Beiore attempting  any work on 
your 
BMW be  sure to read 001 
General  Warnings  and Cautions and llle copyright page at lhe iron1 of 
the manual.  Review Niese warnings 
and caulions each lime you  prepare 
lo work on  your BMW Please also 
read  any  warnings  and caulions lllal accompany  the  procedures  in the 
manual. 
Rear  suspension 
ball joints 
330-19 
bushings 330-13 
control  arms 
seesuspension  arms, below 
description 
300-5 
electronic height  control  (EHC) 
330-44 
ride height 300-14 ride height sensor 330-46 
shoclr absorbers end springs 330-9 
stabilizer bar 330-42 
struts and springs 330-5 subframe 330.13 
suspension arms 330-13 
variations 330-4 wheel bearing,  replacing 330-32 
see also Maintenance 
see also Drive  axles 
see also Final  drive 
Rear  window  (Sport Wagon) 
see 
Tailgate 
Rear  window  defroster 610-17 
Receiverldrter 
see NC 
Relay positions 
see Electrical  component tocations 
table 610-3 
Remote entry (FZV) 
see Central locking 
Reversing  light switch 
see 
Baclc-up light  switch 
Ride  height 
300-14 
Ride height sensor 
see  Rear suspension 
Ring antenna 
see  EWS  (electronic immobilizalion) 
Rotor 
see  Brakes 
Roundel see Exterior  trim 
Running  tosses 
(312-way) valve 
see Fuel 
tenlr 
SCA  (soft  close) 
seeTailgate, soft close 
see  also  Trunk  lid. soft  close 
Scan  tools 
OED-3 
Seals  gaskets  and 010-9 
see  also Crankshaft seals 
Seat  front, 
removing/instelling 520-10 
memory system 520-4 rear 520-13 
see also  Seat belt 
Seat beit front 720-4 
rear 720-8 
troubleshooting 7202 
see also Maintenance 
Secondary  air injection 
see  130 under  appropriate 
iuel 
injection system 
Selector shaft  seat 
see  Manual transmission,  oil 
Seals 
Self-adjusting ctulch (SAC) 
see Clutch,  variations 
Service indicator  see  Maintenance 
Shift interlock  see  Gearshift 
Shift  lever 
see 
Gearshift 
Shift linkage see Gearshift 
Shiftlock  see Gearshilt 
Shack absorber  see  Rear  suspension 
/ Side turn signal  assembly 
see  Lights 
Sill trim  panel 
411-10 
Slave cylinder 
see  Clutch, lhydraulic 
Steep  mode 
600-1  1 
Soft  close 
(SCA) see Tailgate 
see  also 
Trunk lid 
Solenoid  121-23 
Sound system 
650-2 
Spare  parts kit 
010-21 
Spark  plugs 
see  Maintenance 
Speakers 
650-4 
Specifications,  fluid 
020-4 
Sport wagon 
400-4 
Springs 
see  Front  suspension 
see  also  Rear  suspension 
SRS  (supplemental  restraint system) 
see 
Airbag system (SRS) 
Stabilizer bar  see  Front  suspension 
see also Rear suspension 
Starter  see  Battery, starter,  alternator    
Page 1001 of 1002

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WARNING 
Your common  sense, good 
judgement,  and general  alertness are 
crucial  to saie  and 
successiul sewice 
work. Beiore attempting  any work on 
your BMW be  sure  to read  001 
General  Warnings  and  Cautions 
and  the copyright page 
a1 the  iront of 
the  manual.  Review tliese warnings 
and  cautions  each time you prepare 
to  work  on  your 
BMW. Please also 
read  any  warnings  and 
cautions that 
accompany  the  procedures  in the 
manual. 
Towing  010-20 
Traction  control 
see  Brakes,  ABS, ASC or DSC 
system 
Traction  strut 
see Rear suspension,  suspension 
arms 
Transmission  fluid 
200-4 
see Maintenance 
see also Automatic  transmission 
see  also Manuai  transmission 
Transmission 
fluid heat exchanger 
see Cooling system 
Transmission  input shaft oil seat 
see  Manual transmission 
Transmission lubricant 
200-4 see also  Automatic  transmission 
see  also Manual 
lransmission 
Transmission  output shafl oil seal 
see  Manual transmission 
Transmission  pilot bearing 
replacing 210-16 
Transmission service  see  Manual transmission,  oil seals 
Trim,  interior 
see interior  trim 
see also Steering, steering  column 
trim 
Trunk lid 
412-2 soft close  (SCA) 515-13 
see also Trunkltailgale loci( 
see also  Central iocl
tailgate loci( emergency release 
400-5, 515-21 tailgatelrear  window locl(ing 515-14 
trunk lock 51 5-1 9 
lrey positions 515-7 
Turn signai  assembly 
see  Switches 
see  also  Lights 
UIS see Interior protection 
U-joint 
see Driveshaft 
Upholstery  see  Maintenance,  leather upholstery 
and  trim  Vacuum 
booster 
see Brakes 
Valve  guides 
see Cylinder 
head and valvetrain 
Valve seals 
see Cylinder head and  valvetrain 
Valve  seats 
see  Cylinder  head and valvetrain 
Valves  see Cylinder head and 
vaivelrain 
Valvetrain see Cylinder  head and valvetrain 
VANOS  control unit, 
removinglinstalling 
M52 engine 117-14 
M52 TU i M54 engine 117-36 double  VANOS 
function 
117-34 timing  chain service 113-46. 116-28 
timing,  adjusting 
M52 engine 117-22 
M52 TU l M54 engine 117-43 
Vehicle  identification  number (VIN) 
010-12 
Ventilation  microfilter 
see 
AIC 
see  also Maintenance 
Viscous clutch  see  Cooling 
system, cooling tan 
Voitage  and polarity 
600-5 
Voltage tests 
see  Electrical  system, troubleshooting