Audi A4: Safety Precautions
Safety Precautions when Working on Vehicles with Start/Stop System
There is a risk of injury due to the engine starting
unexpectedly.
The engine can start unexpectedly on vehicles with an
activated Start/Stop System. A message in the instrument cluster
indicates whether the Start/Stop System is activated.
- Deactivate the Start/Stop System: Switch off the ignition.
Safety Precautions when Working on Subframe
Note the following when working on the subframe:
Caution
There is a risk of damaging the suspension
components.
- If the subframe mount, steering gear or subframe
crossbrace are not installed correctly, do not rest the
vehicle on its wheels.
- Supporting the vehicle at the subframe or the
subframe crossbrace (for example, using a floor jack or
similar device) is not permitted.
Safety Precautions during Road Test with Testing Equipment
There is a risk of injury caused by unsecured testing
equipment.
If the front passenger airbag deploys during an accident,
unsecured testing equipment becomes a dangerous projectile.
- Secure the testing equipment on the rear seat.
or
- Have a second technician operate the testing equipment on
the rear seat.
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Vehicles with Coil Springs
Shock absorbers are frequently rejected and replaced because
of leaks. Examinations on the test stand and on the vehicle have
shown that the replacement of a large number
Caution
There is a risk of damaging the threads in the
vehicle body.
The bolts and nuts at all suspension parts must not
be loosened or tightened with an impact wrench.
Always install th
SEE MORE:
Special tools and workshop equipment required
Engine Support Bridge -10-222A-
Engine Sling -2024A-
Engine Support Bridge Adapter -3147-
Ring Wrench 7-Piece Set -3337-
Torque Wrench 1332 Insert - Ring Wrench - 16mm -VAG1332/14-
Shop Crane -VAS6100-
Engine Bung Set -VAS6122-
Coolant Collectio
Air conditioning systems designed for refrigerant R12 are
only to be filled with refrigerant R134a if certain requirements
are fulfilled. Refer to
→ Chapter "Refrigerant Circuit, Converting R12 to R134a and
Servicing" and Repair manual: Air Conditioner with
R12 Parts 2 and 3. This repa