18 00 018 Removing and installing complete exhaust system (S65)
Special tools required
- 00 2 030
- 31 2 220
| WARNING | Danger of burning and other injuries! Only perform this work after engine has cooled down. Removal of the exhaust system must be carried out with the assistance of a second person. |
Note. Weight of exhaust system is approx. 40 kg.
Necessary preliminary tasks
- E93 only: Remove tension strut . See «51 71 482 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT TENSION STRUT (ON REAR AXLE) (FROM 03/2007)»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e9293-m3__51-71-482-removing-and-installingreplacing) .
Support exhaust system with special tools 31 2 220 and 00 2 030 .
Disconnect all oxygen sensors.
The description refers only to one side of the two-flow exhaust system. The procedure is identical for both sides.
Scheme 1
Unscrew nuts.
Replace self-locking nuts.
Tightening torque, see 18 40 2AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Scheme 2
Release screws.
Tightening torque, see 18 40 3AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Scheme 3
Release screws (1).
Remove reinforcement plate.
Installation
Tightening torque 24 Nm .
Scheme 4
Release nuts.
Tightening torque, see 18 40 4AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Scheme 5
Unscrew nuts.
Tightening torque, see 18 40 5AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Remove grounding strap.
Scheme 6
Release screws (1) on rear apron.
Unscrew nuts (2).
Tightening torque, see 18 40 5AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Lower exhaust system and remove with assistance of a second person.
Scheme 7
Installation
Add final details to vehicle.
Check exhaust system for leaks.
18 12 030 Removing and installing/replacing rear muffler (S65)
Special tools required
- 31 2 220
| WARNING | Scalding hazard! Only perform these tasks after exhaust system has cooled down. |
Support rear silencer with special tool 31 2 220 .
Note. Description of one side of two-flow exhaust system. The procedure is identical on both sides.
Release screws on clamps.
Tightening torque, see 18 40 6AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Scheme 8
Unfasten nut.
Tightening torque, see 18 40 4AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Unscrew nuts.
Remove grounding straps.
Tightening torque, see 18 40 5AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Release screws (1) on rear apron.
Unscrew nuts (2).
Tightening torque, see 18 40 5AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Remove rear muffler with a second person helping.
Note. Add final details to vehicle. Check exhaust system for leaks.
18 32 040 Removing and installing/replacing catalytic exhaust-gas converter with centre muffler (S65)
Special tools required
- 31 2 220
| WARNING | Scalding hazard! Only perform these tasks after exhaust system has cooled down. |
Support rear silencer with special tool 31 2 220 .
Note. Description of one side of two-flow exhaust system. The procedure is identical on both sides.
Release screws.
Tightening torque, see 18 40 2AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Release screws.
Tightening torque, see 18 40 3AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Release screws (1).
Remove reinforcement plate.
Installation
Tightening torque 24 Nm .
Release screws on clamps.
Tightening torque, see 18 40 6AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Remove catalytic exhaust-gas converter with centre muffler.
Remove catalytic exhaust-gas converter with a second person helping.
Note. Add final details to vehicle. Check exhaust system for leaks.
Special tools required
- 31 2 220
| WARNING | Scalding hazard! Only perform these tasks after exhaust system has cooled down. |
Support rear silencer with special tool 31 2 220 .
Note. Description of one side of two-flow exhaust system. The procedure is identical on both sides.
Release screws on clamps.
Tightening torque, see 18 40 6AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Unfasten nut.
Tightening torque, see 18 40 4AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Unscrew nuts.
Remove grounding straps.
Tightening torque, see 18 40 5AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Release screws (1) on rear apron.
Unscrew nuts (2).
Tightening torque, see 18 40 5AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Remove rear muffler with a second person helping.
Note. Add final details to vehicle. Check exhaust system for leaks.
Special tools required
- 31 2 220
| WARNING | Scalding hazard! Only perform these tasks after exhaust system has cooled down. |
Support rear silencer with special tool 31 2 220 .
Note. Description of one side of two-flow exhaust system. The procedure is identical on both sides.
Release screws.
Tightening torque, see 18 40 2AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Release screws.
Tightening torque, see 18 40 3AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Release screws (1).
Remove reinforcement plate.
Installation
Tightening torque 24 Nm .
Release screws on clamps.
Tightening torque, see 18 40 6AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Remove catalytic exhaust-gas converter with centre muffler.
Remove catalytic exhaust-gas converter with a second person helping.
Note. Add final details to vehicle. Check exhaust system for leaks.
Special tools required
- 31 2 220
| WARNING | Scalding hazard! Only perform these tasks after exhaust system has cooled down. |
Support rear silencer with special tool 31 2 220 .
Note. Description of one side of two-flow exhaust system. The procedure is identical on both sides.
Release screws.
Tightening torque, see 18 40 2AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Release screws.
Tightening torque, see 18 40 3AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Release screws (1).
Remove reinforcement plate.
Installation
Tightening torque 24 Nm .
Release screws on clamps.
Tightening torque, see 18 40 6AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Remove catalytic exhaust-gas converter with centre muffler.
Remove catalytic exhaust-gas converter with a second person helping.
Note. Add final details to vehicle. Check exhaust system for leaks.
18 40 010 Removing and installing/replacing left exhaust manifold (S65)
| WARNING | Scalding hazard! Only perform these tasks on an engine that has cooled down. |
Necessary preliminary tasks
- Remove alternator. See «ALTERNATOR WITH DRIVE»(/bmw/m3/e90-2007-2013/remont/gauges-instrument-panels/#engine-electrical-system-repair-e9293) .
- Remove «complete exhaust system»(/bmw/m3/e90-2007-2013/remont/exhaust/#exhaust-system-repair-e9293__18-00-018-removing-and-installing) .
- Secure engine in installation position with special tool.
- Lower front axle carrier. See «31 11 001 REPLACING FRONT AXLE CARRIER (M3)»(/bmw/m3/e90-2007-2013/remont/axle-shafts/#front-axle-repair-e92e93__31-11-001-replacing-front-axle) .
Remove heat shield.
Release nuts of individual flange pairs. Remove exhaust manifold. To install, replace nuts. Tightens nuts on each flange. Tightening torque, see 18 40 1AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM . Replace seals.
18 40 020 Removing and installing/replacing right exhaust manifold (S65)
| WARNING | Scalding hazard! Only perform these tasks on an engine that has cooled down. |
Necessary preliminary tasks
- Remove «complete exhaust system»(/bmw/m3/e90-2007-2013/remont/exhaust/#exhaust-system-repair-e9293__18-00-018-removing-and-installing) .
- Secure engine in installation position with special tool . See «11 00 670 SECURING ENGINE IN INSTALLATION POSITION (S65)»(/bmw/m3/e90-2007-2013/remont/mechanical/#engine-repair-e9293__11-00-670-securing-engine-in) .
- Lower front axle support . See «31 11 506 LOWERING/RAISING FRONT AXLE CARRIER (M3, UNIVERSAL LIFTER)»(/bmw/m3/e90-2007-2013/remont/axle-shafts/#front-axle-repair-e92e93__31-11-506-loweringraising-front-axle) .
- Remove right engine support arm . See «22 11 100 REPLACING RIGHT ENGINE SUPPORT ARM (S65)»(/bmw/m3/e90-2007-2013/remont/mechanical/#engine-and-gearbox-suspension-repair-e9293__22-11-100-replacing-right-engine) .
Note. For purposes of clarity, the following work steps are shown on the engine after it has been removed.
Release screws.
Remove heat shield.
Scheme 9
Unscrew nuts.
Remove exhaust manifold (1).
Installation
Replace nuts.
Tightens nuts on each flange.
Replace seals, paying attention to installation location of seals.
Tightening torque, see 18 40 1AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .
Scheme 10
See also:
• MAINTENANCE AND GENERAL INFORMATION - SPECIAL TOOLS
• FRONT AXLE - SPECIAL TOOLS
• 51 71 482 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT TENSION STRUT (ON REAR AXLE) (FROM 03/2007)
• 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM
• ALTERNATOR WITH DRIVE
• 31 11 001 REPLACING FRONT AXLE CARRIER (M3)
• 11 00 670 SECURING ENGINE IN INSTALLATION POSITION (S65)
• 31 11 506 LOWERING/RAISING FRONT AXLE CARRIER (M3, UNIVERSAL LIFTER)
• 22 11 100 REPLACING RIGHT ENGINE SUPPORT ARM (S65)
• complete exhaust system