Vehicle Damage Warnings

Safety Precautions

Observe the following if test and measuring instruments are required during a test drive:

CAUTION!
• Test and measuring equipment must always be secured to the rear seat and be operated from there by a second person.

• If test and measuring instruments are operated from the front passenger s seat and the vehicle is involved in an accident, there is a possibility that the person sitting in this seat may receive serious injuries when the airbag is triggered.

CAUTION!
On vehicles equipped with Audi Telematics by OnStar, switch-off the emergency (back-up) battery for the Telematic/Telephone Control Module prior to disconnecting the vehicle battery. Switch-on the emergency (back-up) battery after reconnecting the vehicle battery.

To reduce the risk of personal injury and/or damage to the fuel injection and ignition system, always observe the following:

• Only disconnect and reconnect wires for fuel injection and ignition system, including test leads, if ignition is switched off.

• If engine is to be cranked at starting RPM without starting (e.g. for compression testing), disconnect connectors from power output stage for ignition coils and from fuel injectors.

• It is possible that the control module will recognize a malfunction and store a DTC during some tests. Therefore after completing all checks and repairs the DTC memory must be checked and if necessary erased.

• Cleaning the engine should only be performed with ignition switched off.

• The battery must only be disconnected and connected with the ignition switched off, since the Engine Control Module (ECM) can otherwise be damaged.

CAUTION!
The fuel system is under pressure! Before loosening hose connections or opening the test connection (for fuel pressure testing), place rags around the connection area. Then release pressure by carefully loosening the connection.