1. Check up a condition of rubber pillows of a suspension bracket of system OG. Make sure they are not broken, cracked or otherwise damaged. Replace pillows if necessary.
2. Check the tightening of the bolts securing the exhaust pipe to the exhaust manifold (35 Nm), as well as tightening the bolts for fastening the exhaust pipe suspension bracket to the gearbox (25 Nm).
3. Plug the exhaust pipe opening with the engine running. The engine should stall after a short period of time. If the engine does not stall and a hiss is heard, then the exhaust system is leaking.
If the operation of the exhaust system is accompanied by sounds that are duller than usual, or if, while driving, «coasting» system «shoots», then this indicates that the pipes of the exhaust system are rusted.
Air filter - filter element replacement
AUDI recommends replacing the air filter element every 30,000 km. This recommendation applies to the operation of the car in normal road conditions and with periodic cleaning of the filter element. If the car is operated in dusty conditions and on unpaved roads, then the filter element must be changed more often.
The paper filter element must be cleaned by blowing at least once a year or at a mileage of 15,000 km. It goes without saying that when operating the vehicle on dusty roads, etc. the filter element should be cleaned more often.
1. Remove the air filter and remove the replacement filter element.
2. Tap the replacement filter element on a hard surface to remove large particles of dirt from it.
3. Blow out the filter element with compressed air, directing the air stream onto the side of the filter plates. Never blow through the filter element by blowing air perpendicularly. Thus the dust particles will «driven» even deeper into the pores of the filter.
4. Replace the air filter.
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