General information Four-, six- and eight-cylinder engines are installed on AUDI A6 cars. On four-cylinder engines, the cylinders are arranged in series in a row, and on...
Lower mudguard of the engine compartment Withdrawal Raise the car and secure it on stands. Unscrew bottom screws A (pic. 2.4) fastening of the mudguard of the engine compartment. Unscrew screws B...
Toothed belt Engine 1.8-I / 125 hp Engine 1.8-1/125 hp Equipped with a thermo-tensioner for the toothed belt, which ensures a constant tension of the toothed belt...
Cylinder head — 1.8-I engine (125/150 hp) Removal of a head of the block of cylinders make on the cold engine. The cylinder head is removed together with the exhaust manifold. In this case, the intake...
Checking hydraulic valve lifters The correct setting of valve clearances is very important, as they largely determine the operation of the engine. If the valve clearances are too large, the...
Compression test Compression check allows you to determine the condition of the engine, as well as establish the condition of the valves or pistons (piston rings), or their...
Removal and installation of poly V-belt The V-ribbed belt is wider than the conventional V-belt, it has several longitudinal streams. The V-ribbed belt drives components such as the alternator, power...
V-belt The V-belt is used to drive the water pump. Withdrawal When reinstalling the belt, use a marker or paint to mark the direction of belt rotation with an arrow....
Engine lubrication system Oil viscosity Viscosity characterizes the fluidity of an oil. Depending on the temperature, the oil tends to decrease in fluidity. As the temperature...
Engine oil for AUDI A6 VW/AUDI has set its own oil standards for its models. As a matter of principle, only oils that comply with these standards should be used. The VW/AUDI rate is...
Engine oil circuit The engine is lubricated under pressure. The oil pump draws oil from the oil pan through a strainer and pressurizes it through a fine oil filter. The oil pump...
Oil consumption Oil consumption is the amount of oil required to ensure the combustion process of the fuel-air mixture. The category of oil consumption does not include oil...
Checking the oil pressure and oil pressure sensor For control, a pressure gauge is required, which can be attached to the oil pressure sensor. The oil pressure sensor is mounted on the oil filter bracket....
Removal and installation of the oil pan To remove the oil pan, it is necessary to loosen the fastening of the power unit and, using a lifting mechanism, raise the power unit. Removal 4-cylinder...
Engine Troubleshooting If the engine does not start, faults should be systematically eliminated. To start the engine, two basic prerequisites must always be met in gasoline engines:...