Muffler BMW 528i 2000 E39 Workshop Manual

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180 Exhaust System
General Exhaust System
. . . . . . . . . . . . . . . . .
Exhaust system, removing and installing
Muffler, replacing..
. . . . . . . . . . . . . . . . .
Exhaust Manifolds . . . . . . . . . . . . . . .
Exhaust manifolds, removing
and installing (M52 engine)
. . . . . . . . . .
Exhaust manifolds, removing and
installing (M52
TU and M54 engines) . . .
Exhaust manifolds, removing
and installing (M62 engine)
. . . . . . . . . .
Oxygen Sensors. . . . . . . . . . . . . . . . . . . . 180-9
Oxygen sensors (precatalyst),
replacing
(M52 TU and M54) . . . . . . . . . . . . 180-9
Oxygen sensors (post-catalyst),
replacing (M52
TU and M54) . . . . . . . . . . . . 180-9
Oxygen sensor, replacing
(M52 and M62 engine) . . . . . . . . . . . . . . . 180-10
Exhaust System Diagrams . . . . . . . . . 180-1 1
M52 engine (528i 1997-1 998) . . . . . . . . . . 180-1 1
M52
TU and M54 engines
(528i 1999-2000 and 5251 2001-2003) . . . 180-1 2
M54 engine
(530i 2001-2003) . . . . . . . . . . 180-1 3
M62 engine
(540i 1997-1 998) . . . . . . . . . . 180-1 4
M62
TU engine (540i 1999-2003 . . . . . . . 180-1 5

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180-2
Exhaust System
The exhaust system is designed to be maintenance free, al-
though regular inspection is warranted due to the harsh oper-
ating conditions. Under normal conditions, the catalytic
converter does not require replacement unless it is damaged.
New fasteners, clamps, rubber mounts and gaskets should
be used when replacing exhaust components.
A liberal appli-
cation of penetrating oil to the exhaust system nuts and bolts
in advance may make removal easier.
WARNING -
The exhaust system and catalytic converter operate at
very high temperatures. Allow components to cool before
servicing. Wear protective clothing to prevent burns.
Do not use flammable chemicals near a hot
cataiyiic
converter.
Corroded exhaust system components crumble easily
and often have exposed sharp edges. To avoid injury,
wear eye protection and heavy gloves when working
Exhaust system, removing and installing
The removal and installation procedures given here are gen-
eral procedures for all models. The removal of the exhaust
system as a complete unit is recommended. Once the com-
plete system is removed from the car, individual pipes and
mufflers can be more easily replaced.
WARNING-
Exhaust gases are colorless, odorless, and very toxic. Run
the engine only in a well-ventilated area. Immediately repair
any
leaks in the exhaust system or structural damage to the
car body that
might allow exhaust gases to enter the passen-
ger compartment.
CAUTION-
Use care not to drag or bang oxygen sensors. Oxygen sen-
sors can be easily ruined.

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/Exhaust System Muffler, replacing
BMW offers individual mufflers as replacement parts for the
original one-piece assembly. Replacement of a rear muffler
may be possible with the system installed on the car. Re-
placement of the front or middle muffler should only be done
with the exhaust removed from the car.
< Mark length of new muffler pipe(s) on old system.
- Use exhaust pipe cutter to cut pipe(s). Deburr cut pipe
end@).
4 Use clamping sleeves to join new pipe(s) to old.
Make sure pipe ends are centered inside sleeve.
Point clamping sleeve bolt threads
(arrows) down.
- Reinstall exhaust system.

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Exhaust System
M52 engine
(5281 1997-1 998)
1. Exhaust manifolds
2. Sealing washer
3. Plug
4. Gasket (manifold to cylinder
head)
5. Clamping sleeve
6. Post-catalytic converter oxygen sensor
7. Pre-catalytic converter oxygen
sensor
8. Hanger
9. Rear muffler
10. Vibration dampener
11. Center support bracket
12. Clamping sleeve
13. Front pipe with catalytic
converters
14. Hanger
15. Center muffler
16. Gasket (front pipe to manifold)

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I Exhaust System
M52 TU and M54 engines
(528i 1999-2000
and 525i 2001-2003)
1. Transmission bracket
2. Center support bracket
3. Front muffler
4. Clamping sleeve
5. Vibration dampener
6. Hanger
7. Rear muffler
8. Hanger
9. Center muffler
10. Oxygen sensors, post-catalytic
converter
11. Oxygen sensors, pre-catalytic
converter
12. Exhaust manifoldlcatalytic
converter assemblies

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Exhaust systeml
M54 engine
(5301 2001-2003)
Clamping sleeve
Front muffler Rear muffler
Hanger
Vibration dampener
Clamping sleeve
Center muffler
Hanger
Gasket (front pipe to manifold)
10. Exhaust
manifold/catalytic
converter assemblies
11. Oxygen sensors, post-catalytic converter
12. Oxygen sensors, pre-catalytic converter

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I Exhaust System
M62 engine
(540i 1997-1 998)
1. Right side catalytic converters
2. Support bracket
3. Support bracket
4. Center muffler
5. Hanger
6. Rear muffler
7. Clamping sleeve
8. Oxygen sensors, post-catalytic
converter
9. Oxygen sensors, pre-catalytic
converter
10. Left side catalytic converter
11. Sealing rings
12. Left front exhaust manifold
13. Left rear exhaust manifold
14. Gasket
15. Exhaust manifold, right front
16. Exhaust manifold, right rear

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Exhaust systeml
M62 TU engine
(540i 1999-2003)
1. Oxygen sensors, pre-catalytic
converter
(2)
2.
Oxygen sensors, post-catalytic
converter
(2)
3.
Hanger
4. Rear muffler
5. Clamping sleeve
6. Hanger
7. Center muffler
8. Clamping sleeve
9. Catalytic converter, left side
10. Catalytic converter, right side
11. Exhaust manifoldlcatalytic
converter,
left side
12. Gasket (2)
13.
Gasket (2)
14.
Exhaust manifoldlcatalytic
converter, right side

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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