Car engine repair Audi A4 B5, petrol
Engines — General Information
A tasty morsel for fans of technology: the five-valve cylinder head of the engine models with a working volume of 1.8 liters. With the help of a chain (1), the...
A tasty morsel for fans of technology: the five-valve cylinder head of the engine models with a working volume of 1.8 liters. With the help of a chain (1), the...
Power levels
Engine letter designations ADP ADR AEB ABC AAH Number of cylinders 4 4 4 6 6 Power kW 74 92 110 110 128 At rpm 5300 5800 5700 5750 5500 Working volume cm ³...
Engine letter designations ADP ADR AEB ABC AAH Number of cylinders 4 4 4 6 6 Power kW 74 92 110 110 128 At rpm 5300 5800 5700 5750 5500 Working volume cm ³...
Engine Signs
In the five-valve cylinder head of the 1.8-liter engine, the chain wheel (4) of the exhaust camshaft transmits its rotation speed to the double-row chain (2)...
In the five-valve cylinder head of the 1.8-liter engine, the chain wheel (4) of the exhaust camshaft transmits its rotation speed to the double-row chain (2)...
Engine technology, maintenance and repair
Below, along with some explanations of how the engine works, you will find a list of maintenance and repair work. You can do the repairs mentioned here...
Below, along with some explanations of how the engine works, you will find a list of maintenance and repair work. You can do the repairs mentioned here...
Lubrication system
Labyrinth: the basic idea behind the new three-section crankcase designed for the Audi A4. This section shows the oil cooler (2) in which the engine oil is...
Labyrinth: the basic idea behind the new three-section crankcase designed for the Audi A4. This section shows the oil cooler (2) in which the engine oil is...
Crankcase exhaust ventilation
The engine passes 50-70 liters of exhaust gases per minute through the piston rings into the crankcase. Pressure is created, which must have an outlet from the...
The engine passes 50-70 liters of exhaust gases per minute through the piston rings into the crankcase. Pressure is created, which must have an outlet from the...
Visual inspection of the engine
Execution order 1. Inspect the engine from top to bottom. 2. Slightly oily areas are not a cause for concern - all engines "sweat" a little grease from time to...
Execution order 1. Inspect the engine from top to bottom. 2. Slightly oily areas are not a cause for concern - all engines "sweat" a little grease from time to...
Engine life
Audi engines easily exceed the 100,000 km limit. But whether they will last twice as long depends largely on your driving style and the care you give your...
Audi engines easily exceed the 100,000 km limit. But whether they will last twice as long depends largely on your driving style and the care you give your...
Nominal and maximum speed
Any internal combustion engine develops maximum power at a certain speed, the so-called nominal speed. Increasing the speed will not add power to the engine....
Any internal combustion engine develops maximum power at a certain speed, the so-called nominal speed. Increasing the speed will not add power to the engine....
Speed limitation
Our engines can handle fairly high revs. The valves are driven by plate tappets located directly above the camshaft. This involves only minor amounts of metal,...
Our engines can handle fairly high revs. The valves are driven by plate tappets located directly above the camshaft. This involves only minor amounts of metal,...
Measuring compression pressure
To measure, you need to warm up the engine. The tightness of the piston rings increases when the oil is hot. In addition, you need to stop the supply of fuel...
To measure, you need to warm up the engine. The tightness of the piston rings increases when the oil is hot. In addition, you need to stop the supply of fuel...
Help with engine problems
The crankshaft of a six-cylinder engine is turned by the central bolt of the crankshaft belt pulley. The tool to use is a socket wrench with an internal...
The crankshaft of a six-cylinder engine is turned by the central bolt of the crankshaft belt pulley. The tool to use is a socket wrench with an internal...
Hydraulic tappets
What are hydraulic tappets used for? Due to the engine heating, individual valve mechanism components expand and lengthen. Therefore, in order for the valves...
What are hydraulic tappets used for? Due to the engine heating, individual valve mechanism components expand and lengthen. Therefore, in order for the valves...
Works on a toothed belt
The timing belt on a 6-cylinder engine is tensioned correctly if it can be turned by fingers between the timing belt drive gear and the upper idler roller no...
The timing belt on a 6-cylinder engine is tensioned correctly if it can be turned by fingers between the timing belt drive gear and the upper idler roller no...
Cylinder head gasket faults
Identification feature Reasons/Features A. The coolant level is constantly dropping slowly Coolant enters the combustion chambers in very small quantities....
Identification feature Reasons/Features A. The coolant level is constantly dropping slowly Coolant enters the combustion chambers in very small quantities....
Installation and removal of the cylinder head
The cylinder head bolts should be tightened in the sequence indicated by the numbers. The six-cylinder engine is shown first (the arrow shows the direction of...
The cylinder head bolts should be tightened in the sequence indicated by the numbers. The six-cylinder engine is shown first (the arrow shows the direction of...
Engine installation and dismantling
In the workshop, the engine is removed using such a lifting device. It is for this purpose that the cylinder head has mounting eyes, to which, of course,...
In the workshop, the engine is removed using such a lifting device. It is for this purpose that the cylinder head has mounting eyes, to which, of course,...
This section is available on russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
Similar sections of other Audi car models:
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Gasoline engines: 5 cylinder engines Audi A6 C4 (1994-1997)
Engine 1.2 l (diesel): Engine repair Audi A2 (1999-2005)
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Gasoline engines: 5 cylinder engines Audi A6 C4 (1994-1997)
Engine 1.2 l (diesel): Engine repair Audi A2 (1999-2005)
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