Audi 80 Quiz
Exhaust System

Separating the Exhaust Pipe from the Exhaust Manifold

In this manual: Exhaust System
Technical Description — 39Engines — 41Exhaust System — 13Cooling System — 28Fuel tank and fuel pump — 12Air Filter and Intake Ducts — 13Mono-Motronic Injection System — 18Digifant Injection System — 19KE-III-Jetronic Injection System — 35MPI and MPFI Injection Systems — 32Clutch — 11Transmission and Driveline — 21Suspension and Steering — 33Brake System — 41Anti-lock brake system — 8Wheels and Tires — 13Body Electrical System — 35Ignition System — 24Lighting — 14Signaling Devices — 7Instruments and Auxiliary Equipment — 54Heating and Ventilation — 7Body Components — 18Troubleshooting — 6Specifications — 13
~1min read

PROCEDURE

The studs on which the exhaust pipe nuts are mounted break easily if you try to unscrew a heavily rusted nut without preliminary treatment.

Therefore, before starting work, treat the connection nuts with rust remover spray or (often even better): cut the nuts off with a sharp chisel. As a rule, they consist of very soft material with a threaded part inside. The threaded part must then be separately removed from the stud threads.

New nuts from the exhaust system mounting kit are also made of this soft material. Therefore, do not use any other nuts from your home supply. Tightening torque: 35 N·m.

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A quick Audi 80 quiz: every answer comes with an explanation and a link to the manual page.