Audi Workshop Service and Repair Manuals > A4 Cabriolet Mk2 > Power unit | 4-cylinder engine (5-valve turbo), mechanics | Exhaust system | Removing and installing parts of exhaust system | Stress-free alignment of exhaust system

Stress-free alignment of exhaust system - vehicles with front-wheel drive

Note

The exhaust system must be aligned when it is cool.

Vehicles without clamp between centre silencer and rear silencer

–	Loosen bolt connections of front clamp → Item.

–	Push exhaust system towards front of vehicle -arrow- so that rubber mounting (right-side) for centre silencer is preloaded by -a- = 5 ... 9 mm.

–	Tighten bolts on front clamp → Item evenly to 40 Nm.

–	Align tailpipes → Anchor.

Vehicles with clamp between centre silencer and rear silencer

Note

On vehicles with clamp fitted between centre silencer and rear silencer, it is also necessary to align the centre silencer.

–	Loosen bolts for front clamp → Item and rear clamp → Item.

–	Push front section of exhaust system towards front of vehicle -arrow-, so that mounting for centre silencer is preloaded by -a- = 5 ... 9 mm.

–	Tighten bolts on front clamp → Item evenly to 40 Nm.

–	Push rear section of exhaust system towards front of vehicle -arrow- until rear rubber mountings for rear silencers are preloaded by -a- = 7 ... 11 mm.

–	Align rear silencer horizontally.

–	Tighten bolts on rear clamps → Item evenly to 40 Nm.

–	Align tailpipes → Anchor.

Aligning tailpipes

–	Check clearance between tailpipes and bumper on both sides.

l	Dimension -x- (left-side) = dimension -x- (right-side)

If necessary, correct dimension -x- as follows:

–	Slacken nut -arrow- on brace between exhaust pipes.

–	Adjust the distance between the rear silencers.

–	Tighten nut to 23 Nm.

–	Check distances -y- and -z- between tailpipes and bumper.

l	Dimension -y- = more than 20 mm.

l	Dimension -z- = 10 ... 16 mm.

–	If necessary, check whether the exhaust system is aligned free of stress → Chapter.

Audi Workshop Service and Repair Manuals