Muffler: Service and Repair
Muffler with mountings
1. From catalytic converter
2. Marking
3. Flat round head bolt
4. Double clamp
^ Replace
^ Observe installation position
5. M8: 25 Nm, M10: 40 Nm
6. Support element/mounting
^ Observe installation position
7. Forward muffler
^ As standard, forward muffler and rear muffler are installed as a single component. In repair cases forward muffler and rear muffler are supplied individually with a double clamp for connecting together.
^ Aligning forward muffler parallel, Refer to Fig. 4
^ Separating points, Refer to Fig. 4
^ Aligning exhaust system, Refer to Exhaust System, Adjustments
8. Support element/mounting
9. Rear muffler
^ As standard, forward muffler and rear muffler are installed as a single component. In repair cases forward muffler and rear muffler are supplied individually with a double clamp for connecting together.
^ Separating points
^ Observe installation position of end pipe
10. Support element/mounting
11. Tunnel bridge
^ With hole to align exhaust system
^ Aligning exhaust system, Refer to Exhaust System, Adjustments
Fig. 1 Installation position of double clamp
- Position new double clamp, as illustrated, approximately 5 mm from markings -A- and tighten.
Tightening torque: 40 Nm
Note: Mark -A- is valid for models with a manual or an automatic transmission.
Fig. 2 Aligning forward muffler parallel
Mounting pins on exhaust pipe must run parallel with tunnel bridge (dimension -x- on left and right the same).
Fig. 3 Installation position of mounting
Angled side on base of mounting -arrow- points forward.
Fig. 4 Separating point on exhaust pipe
Special tools and equipment
^ Body saw e.g. VAG 1523
- Separate exhaust pipe at right angles at separating point -arrow 2-.
- Align repair double clamp -4- in installation position on side markings -arrows 1 and 3- as illustrated.
Tightening torque: 40 Nm
Fig. 5 Installation position of rear muffler end pipes
Work sequence
- Align rear muffler so that dimension to body -x- and -y- for end pipes -