Safety Precautions

Safety Precautions

Observe the following to avoid personal injury and vehicle damage:


There is a risk of injury and accident from accidentally engaging a gear when the engine is running.

• Before performing work with the engine running, place the selector lever in the "P" position and engage the parking brake.

To prevent personal injury and damage or destruction of electrical and electronic components, observe the following:

• Connect and disconnect test equipment only when the ignition is turned off.


Risk of destroying electronic components when disconnecting the battery.

• Observe measures for disconnecting battery.

• Only disconnect the battery with ignition switched off.

- Disconnect the battery.

When working on vehicles with the start/stop system, observe the following:


Danger of injury through automatic motor starting with vehicles with the Start/Stop System.

• For vehicles with an activated Start/Stop System (recognizable from a notification in the instrument cluster), the motor can be started automatically if needed.

• Thus, make sure that the Start/Stop System is disabled when working on the vehicle (turn off ignition, if needed, turn the ignition back on).

If testing equipment must be used during a road test, observe the following:

Except Audi A3 Cabriolet:


Distraction and testing equipment that is not secured properly can cause accidents.

The passenger airbag could pose a risk if it deploys in a collision.

• Operating testing equipment while driving causes it to shift position.

• There is an increased risk of injury due to unsecured testing equipment.

• Always secure testing equipment on the rear seat using a strap and have a second person in the rear seat operate it.

For Audi A3 Cabriolet:






There is an accident risk if testing equipment shifts position or is not secured sufficiently during a road test.

The passenger airbag could pose a risk if it deploys in a collision.

• Operating testing equipment while driving causes it to shift position.

• There is an increased risk of injury due to unsecured testing equipment.

• Move the front passenger seat as far back as possible.

• Only use the vehicle diagnosis and service system (VAS 5052 A) or diagnosis system (VAS 5053).

• Testing equipment - 1 - must lie flat on the passenger's thighs and be operated by that person, as shown in the illustration.