4 cylinder car engines Audi A6 C4
In this section, information about gasoline 4-cylinder engines with volumes of 1.8 and 2.0 liters with water cooling and one or two camshafts of the Audi A6. The cylinder block of these engines is made of cast iron, and the head is made of aluminum alloy. Engine factory codes: ADR, AAE, ACE, ABK and AAD.
Engine specifications
General characteristics Engine code: 1781 cm³, Bosch Motronic 3.2 injection system, 92 kW ADR 1984 cm³, Bosch Mono-Motronic injection system, 74 kW AAE 1984...
General characteristics Engine code: 1781 cm³, Bosch Motronic 3.2 injection system, 92 kW ADR 1984 cm³, Bosch Mono-Motronic injection system, 74 kW AAE 1984...
Timing marks for valve timing
The crankshaft, camshaft and intermediate shaft sprockets are driven by the timing belt and rotate in phase. If the sprockets are out of phase, the valves will...
The crankshaft, camshaft and intermediate shaft sprockets are driven by the timing belt and rotate in phase. If the sprockets are out of phase, the valves will...
Compression check
If the engine runs poorly or intermittently, check the ignition system and fuel system. If the reasons for poor engine performance cannot be found, perform a...
If the engine runs poorly or intermittently, check the ignition system and fuel system. If the reasons for poor engine performance cannot be found, perform a...
Gas distribution belt
Timing belt (AAE, ACE, ABK, AAD) 1. Upper belt cover 2. Nut 3. Plug 4. Timing belt 5. Tensioner 6. Nut 7. Back belt cover 8. Pin 9. Bolt 10. Drive belt 11....
Timing belt (AAE, ACE, ABK, AAD) 1. Upper belt cover 2. Nut 3. Plug 4. Timing belt 5. Tensioner 6. Nut 7. Back belt cover 8. Pin 9. Bolt 10. Drive belt 11....
Timing belt tensioner, sprockets
Removal 1. Remove the timing belt. Tensioner 2. Turn the tensioner pulley counterclockwise and insert the pin into the hole located at the top of it. Unscrew...
Removal 1. Remove the timing belt. Tensioner 2. Turn the tensioner pulley counterclockwise and insert the pin into the hole located at the top of it. Unscrew...
Additional drive belts
Depending on the model, one to three additional belts may be installed, which drive the alternator, power steering pump, water pump and air conditioning...
Depending on the model, one to three additional belts may be installed, which drive the alternator, power steering pump, water pump and air conditioning...
Camshaft cover
ADR engine Removal 1. Remove the top engine cover. 2. Remove the air intake located between the air filter and the throttle body housing. 3. Disconnect the...
ADR engine Removal 1. Remove the top engine cover. 2. Remove the air intake located between the air filter and the throttle body housing. 3. Disconnect the...
Camshaft oil seal
Replacement 1. Remove the camshaft sprocket. 2. Drill two holes in the seal, screw in the screws and remove the seal. 3. Clean the oil seal groove. 4....
Replacement 1. Remove the camshaft sprocket. 2. Drill two holes in the seal, screw in the screws and remove the seal. 3. Clean the oil seal groove. 4....
Intermediate shaft seal
Replacement 1. Remove the intermediate shaft sprocket. 2. Remove the sealing ring from the groove of the seal housing. 3. Remove the oil seal. 4. Clean the oil...
Replacement 1. Remove the intermediate shaft sprocket. 2. Remove the sealing ring from the groove of the seal housing. 3. Remove the oil seal. 4. Clean the oil...
Crankshaft seals
Front crankshaft oil seal 1. Remove the timing belt and crankshaft sprocket. 2. Drill two holes in the seal and screw screws into them. 3. Remove the seal, or...
Front crankshaft oil seal 1. Remove the timing belt and crankshaft sprocket. 2. Drill two holes in the seal and screw screws into them. 3. Remove the seal, or...
Cylinder head
ADR engine External parts of the cylinder head 1. Head gasket 2. Head bolts 3. Exhaust manifold gasket 4. Exhaust manifold 5. Exhaust manifold nuts 6. Camshaft...
ADR engine External parts of the cylinder head 1. Head gasket 2. Head bolts 3. Exhaust manifold gasket 4. Exhaust manifold 5. Exhaust manifold nuts 6. Camshaft...
Hydraulic tappets
The pushers are automatically adjusted and do not require maintenance. To check the operation of the tappets, warm up the engine, turn it off and remove the...
The pushers are automatically adjusted and do not require maintenance. To check the operation of the tappets, warm up the engine, turn it off and remove the...
Removal and installation the flywheel
Removal 1. On manual transmission models, remove the transmission and clutch. 2. On models with automatic transmission, remove the transmission. 3. Unscrew the...
Removal 1. On manual transmission models, remove the transmission and clutch. 2. On models with automatic transmission, remove the transmission. 3. Unscrew the...
Engine mounts
Examination 1. Raise and support the front of the vehicle. 2. Inspect the rubber shock absorbers of the supports for wear and damage; replace them if...
Examination 1. Raise and support the front of the vehicle. 2. Inspect the rubber shock absorbers of the supports for wear and damage; replace them if...
Oil pan
Oil pan (ADR) Removal 1. Raise and support the front of the vehicle. 2. Remove the lower engine shield. 3. Drain the engine oil and remove the dipstick. 4....
Oil pan (ADR) Removal 1. Raise and support the front of the vehicle. 2. Remove the lower engine shield. 3. Drain the engine oil and remove the dipstick. 4....
Oil pump and oil intake pipe
Removal 1. Remove the oil pan. 2. Remove the oil intake pipe. 3. Remove the sealing ring. 4. Remove the oil pump bolts. 5. Remove the oil pump. 6. Remove the...
Removal 1. Remove the oil pan. 2. Remove the oil intake pipe. 3. Remove the sealing ring. 4. Remove the oil pump bolts. 5. Remove the oil pump. 6. Remove the...
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