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:


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.