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The entire ABS/TC unit must be checked following operations
which affect the ABS/TC aggregates (e. g. accident repairs).
Diagnosis can be performed using "TECH 1", "TECH 1A" or "TECH 2".
Self-diagnosis of the ABS occurs at approx. 7 km/h, which may be
available as a result of noises emitted from the return pump.
The following points must be observed
when carrying out operations on vehicles with ABS/TC:
- When carrying out electrical welding work, the plug must be
disconnected from the electronic ABS/TC control unit.
- During painting operations, the electronic ABS/TC control unit
may be exposed indefinitely to a maximum of 80 °C / 176
°F.
- After operations on the brake system, it must be bled and a
pressure test be carried out.
- Check all connections for leaks.
- Ensure secure connections at the battery terminals.
- Never use a battery booster to start the vehicle.
- Ensure that all connections to the wiring harness are
secure.
- Never connect/disconnect the multiple plug to/from the
electronic ABS/TC control unit with the ignition switched on.
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