In the workshop, the engine is dismantled using such a lifting device. It is for this purpose that the cylinder head has mounting lugs, to which, of course, chains or cables can be attached. Before it can be removed, the front of the vehicle must be dismantled and all plug and screw connections must be disconnected.
The so-called intercepting device is visible on the dismantled engine (1), which is combined with a bracket (2) gearboxes. The meaning of this is to support the gearbox, which, with the engine dismantled, could otherwise fall down. Of course, the same effect can be achieved if you prop it up from below.
Describing the dismantling of engines of all models would be beyond the scope of this manual. Here are just some of the salient points regarding this topic:
Order of execution
1. Engine lifts up without gearbox. To do this, you need a chain hoist that you can hang securely at a sufficient height. Useful also «preloaded helper».
2. Before starting direct dismantling, remove all interfering parts of the car: the lower engine lining, the air filter housing, and the front of the car as an assembly. If so, remove the viscous fan.
3. Since the Audi A4 has a lot of electrical wires and vacuum hoses, you must first of all mark all these wires and hoses in order to then connect them correctly in the right place.
4. Before disconnecting the battery, you must ensure that you have the anti-theft code for the radio.
5. Disconnect the battery only when the ignition is off, otherwise the control units may be damaged.
6. Before the final disconnection of the engine, the gearbox must be supported or raised slightly with the engine still installed. For these purposes, a special tool is used in the workshop, which rests against the mounting edges of the wings.
7. The motor itself has a hanging eye, into which a lifting device can be inserted. Check for secure fastening.
Tightening torques
Details
|
Tightening torque in Nm
|
|
All bolts and nuts |
M6
M8 M10 M12 |
10
20 45 60 |
Reception pipe on the exhaust elbow |
M8
|
25
|
Air conditioning compressor at bracket |
M8
|
25
|
Torque converter at gripper plate |
M8
|
35
|
Engine support at the point of attachment to the engine |
M10
|
45
|
Viscous coupling at the bracket |
M10
|
45
|
Servo pump at the bracket |
M8
|
25
|
Suspension generator |
M8
|
35
|
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