Computers and Control Systems: Service Precautions

Safety Precautions

If special testing equipment is required during road test, note the following:

WARNING:
- To reduce the risk of accident during road tests, always proceed as follows:
Audi TT Coupe:
- Use only the VAS5051 tester or the VAG1551 Scan Tool (ST) to read measuring value blocks. Always secure scan tool to the rear seat and have operated from there by a second technician.
- Due to limited space, the passenger seat must be adjusted as far forward as possible and the seatback adjusted to the forward-most engaged position using the hand wheel. Do not use the seatback release lever for this purpose.
Audi TT Roadster:
- Use only the VAG1552 mobile scan tool with passenger-side airbag switched off.
- Deactivate the passenger-side airbag using the key switch in the glove compartment or via On Board Diagnostic (OBD); Adaptation: Passenger side airbag unit, activating and deactivating.
- Switch on passenger-side airbag after completing work.