2001 BMW 525i manifold

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--- -
On-Board Diagnostics - - --- - -- - -
PI542
PI550
PI580
PI 580
PI 580
PI 593
PI622
PI623
PI623
PI 624 176
27 109
114
119
124
123
115
116
168 Pedal Position Sensor Electrical
Idle-Speed
Control Valve Closing Coil Electrical
Throttle Valve Mechanically Stuck
(M73: Throttle Valve 1 Spring Test)
Throttle Valve Mechanically Stuck
(M73: Throttle Valve 1 Spring Test)
Throttle Valve Mechanically Stuck
(M73: Throttle Valve 1 Spring Test)
DlSA (Differentiated lntalte Manifold) Control Circuit Electrical
Map Cooling Thermostat Control Circuit Electrical
Pedal Position Sensor Potentiometer Supply
Pedal Position Sensor Potentiometer Supply
Pedal Position Sensor Potentiometer Supply Channel
1 Electrical (M52: Coolant Thermostat (Coolant
Temperature Below Thermostat Regulating Temperature))

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On-Board ~iaanosticsl
Engine diagnostic trouble codes: M54 engine
P-code
BMW-FC Explanation
PO01 I / 103 I 'A' Camshaft Position Timing Over-Advanced or System Performance (Banlc 1) I I
PO012 1105 I 'A' Camshaft Position Timing Over-Retarded (Bank 1) I I
PO01 4 1104 I 'B' Camshaft Position Timing Over-Advanced or System Performance (Bank 1)
PO01 5
PO030
PO031
PO032
I 1
PO038 179 / HO2S Heater Control Circuit High (Bank 1 Sensor 2)
I I -.
I I
PO050 1 55 I H02S Heater Control Circuit (Bank 2 Sensor 1)
106
25
25
25
PO036
I I
PO051 1 55 I H02S Heater Control Circuit Low (Bank 2 Sensor 1)
'B' Camshaft Position Timing Over-Retarded (Bank 1)
H02S Heater Control Circuit (Bank 1 Sensor 1)
H02S Heater Control Circuit Low (Bank 1 Sensor 1)
H02S Heater Control Circuit Hiqh (Bank 1 Sensor 1)
PO037 1 79 I HO2S Heater Control Circuit Low (Bank 1 Sensor 2)
79
HOPS Heater
Control Circuit (Banlc 1 Sensor 2)
PO052
PO056
PO057
PO058
I I
PO1 03 / 8 I Mass or Volume Air Flow Circuit High. Input
I I -.
I I
PO1 07 1 197 I Manifold Absolute PressureIBarometric Pressure Circuit Low Input
55
61
61
61
PO101
I I
POI08 1197 / Manifold Absolute PressureIBarometric Pressure Circuit High Input
H02S Heater Control Circuit High (Bank 2 Sensor 1)
H02S Heater Control Circuit (Bank 2 Sensor 2)
HO2S Heater Control Circuit Low (Bank 2 Sensor 2)
HO2S Heater Control Circuit Hiqh (Banlc 2 Sensor 2)
PO102 18 I Mass or Volume Air Flow Circuit Low Input
149
I I -
PO122 112 ThrottleIPedai Position SensorISwitch 'A' Circuit Low
PO123 1112 I ThrottleIPedal Position SensorISwitch 'A' Circuit High
Mass
or Volume Air Flow Circuit
RangeIPerformance
PO112
PO113
PO1 17
PO118
PO121
14
14
10
10
118
PO128
PO1 31
PO132
PO133
PO133
PO1 34 Intake
Air Temperature Sensor 1 Circuit Low
Intake Air Temperature Sensor 1 Circuit High
Engine Coolant Temperature Circuit Low
Engine Coolant Temperature Circuit High
ThrottleIPedal Position SensorISwitch 'A' Circuit RanqeIPerformance
I I
168
150
150
229
231
150
PO135
Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
02 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
02 Sensor Circuit High Voltage (Bank 1 Sensor 1)
02 Sensor Circuit Slow Response (Bank
1 Sensor 1)
02 Sensor Circuit Slow Response
(Banlc 1 Sensor 1)
02 Sensor Circuit No Activitv Detected
(Banlc 1 Sensor 1)
188 02 Sensor Heater Circuit (Bank 1 Sensor 1)

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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

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INDEX 7
WARNING
Your common sense, good
judgement, and general alertness are
crucial to safe and successful service
work. Before
attempting any work on
your BMW, be sure to read 001
General Warnings and Cautions
and the copyright page at the front of
the manual. Review these warnings
and cautions each time you prepare
to
work on your BMW. Please also
read any warnings and
caulions that
accompany
/he procedures in the
manual.
Jack stands
010-16
Jump starting 010-19
Keys
515-1 1
Knock sensor
see Ignition system
Leak detection,
fuel tanlr
see Fuel tank, leak detection unit
Leather upholstery
see Maintenance, leather
upholstery and trim
LDP
(leak detection pump)
see Fuel
tanir, leal( detection unit
Level sender
see Fuel tank
see also Fuel pump
License
plate iight
630-1 1
Lifters see Cylinder head and vaivetrain
Lifting the car
010-5 Lights
bulb applications
630-2
control module (LCM) 630-3
foglights 630-8 headiighls 630-4
automatic headlight adjustment
(LWR)
630-7
vertical aim system 630-8 interior lights 630-12
bulb applications 630-13
side turn signal 630-9
taillight 630.10 trunk light bulb 630-14
turn signals, taillights 630-12
LOClCS see Central loci(ing
see also Door loclrs
Lubrication system
oil
level warning switch, replacing
119-20
oil pan, removinglinstalling
6-cylinder 119-10
V-E lower 119-13 V-8 upper 119-15
oil pressure
checiring 11
9-4
warning system, testing 119-5 warning switch, replacing 119-20
oil pressure
reliel valve
6-cylinder 119-26
V-8 11 9-27
oil pump, removinglinstalling
6-cylinder
119-22
V-8 1 19-4
troubieshooting 119-3
Luggage compartment
seeTrunk
MAF (mass air flow) sensor
see 130 under appropriate fuel
injection system Maintenance
accelerator linkage
020-14 air filter 020-14
automatic transmission 020-29
battery 020-22
body lubrication 020-31 body and interior 020-31
braire fluid 020-24
brake padlrotor wear 020-24
brake system 020-25 clutch fluid 020-26
cooling system 020-15
CV ioint boots 020-27
differential oil level 020-26
drive bells 020-16 engine comparlmenl 020-14
engine cooling system 020-16
engine oil 020-1 1 exhaust system 020-27
exterior washing 020-31
fluid and lubricant specifications 020-9
fuel lilter 020-27 fuel lanir and fuel lines 20-28
idle speed 020-19
inspection 020-5
interior care 020-31
lealher upholslery and trim 020-31
maintenance tables 020-6
manual transmission oil 020-30
microiilter 020-22 oxygen sensors 130-72, 180-8
parlcing brake 020-25
power steering fluid level 020-20
seat belts
020-32 service indicator 020-3
spark plugs 020-20
special cleaning 020-32 suspension, front 020-29
suspension, rear 020-29
tires 020-29
washing
020-32
waxing 020-32 windshield wiper blade 020-33
wheels, aligning 020-30
Malfunction indicator iight (MIL)
OED-2
Manifold, exhaust
see Exhaust system
Manifold,
intake
see Intake maniiold