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Aligning tailpipes > < Removing and installing particulate filter with catalytic converter - vehicles with four-wheel drive

A4 Mk2

Stress-free alignment of exhaust system
Stress-free alignment of exhaust system
l  The exhaust system must be aligned when it is cool.
Vehicles with front-wheel drive without clamps between Y-pipe and rear silencer
–  Loosen bolts on front clamp → Item.
   
–  Push exhaust system towards front of vehicle -arrow-, so that mountings for Y-pipe are preloaded by -a- = 5 ... 9 mm.
–  Tighten bolt connections on front clamp evenly.
–  Align tailpipes → Anchor.
Vehicles with front-wheel drive with clamps between Y-pipe and rear silencer
  Note
On vehicles with clamps fitted between Y-pipe and rear silencer, it is also necessary to align the centre silencer.
–  Loosen bolts on clamps → Item and → Item.
  A26-0101
–  Push front section of exhaust system towards front of vehicle -arrow-, so that mountings for Y-pipe are preloaded by -a- = 5 ... 9 mm.
–  Tighten bolt connections on front clamp evenly.
  A26-0101
–  Push rear section of exhaust system towards front of vehicle -arrow-, so that rear rubber mountings for rear silencer are preloaded by dimension -a- = 7 ... 11 mm.
–  Align rear silencers so they are horizontal.
–  Tighten bolt connections on rear clamps evenly.
–  Align tailpipes → Anchor.
Vehicles with four-wheel drive without clamps between Y-pipe and rear silencer
  Note
There is no provision for aligning the exhaust system.
  A26-0098
Vehicles with four-wheel drive with clamps between Y-pipe and rear silencer
–  Loosen bolts at rear clamps → Item.
–  Push rear section of exhaust system towards front of vehicle -arrow-, so that mountings (rear) for rear silencers are preloaded by -a- = 5 ... 9 mm.
–  Align rear silencers so they are horizontal.
–  Tighten bolt connections on rear clamps evenly.
–  Align tailpipes → Chapter.
  A26-0101

Aligning tailpipes > < Removing and installing particulate filter with catalytic converter - vehicles with four-wheel drive