Safety Precautions

Safety Precautions

Note the following when working on the fuel system:

CAUTION!
There is a risk of injury because the fuel is under very high pressure.

• Before opening high pressure area of the fuel injection system, fuel pressure must be relieved to residual pressure.

• To reduce remaining residual pressure, lay a clean cloth around the connector and carefully loosen connector.

- Procedures before opening high pressure fuel injection system.

To prevent personal injury and damage to the injection and ignition system, observe the following:

• The ignition must be switched off before connecting or disconnecting injection and ignition system wiring or tester cables.

• Only clean engine with ignition switched off.

• If electrical connectors were disconnected and the engine was started, then malfunctions have been stored in the engine control modules. " Generate readiness code" in "Guided Functions".

CAUTION!
Risk of destroying electrical components when battery is disconnected.

• Observe measures when disconnecting battery.

• Only disconnect battery with ignition switched off.

- Disconnect battery.

Note the following when working on the cooling system:

CAUTION!
Risk of scalding due to hot steam and hot coolant.

• When the engine is warm the cooling system is under pressure.

• To reduce pressure, cover coolant reservoir cap with cloth and carefully open.

CAUTION!
The vehicle could overheat if the cap is installed incorrectly.

• The cap must engage noticeably when sealing.

If it is necessary to use testing and measuring devices on road tests, observe the following:





CAUTION!
Distraction and improperly secured test equipment can lead to accidents.

Risk of passenger airbag deploying in an accident.

• Operating testing and measuring equipment while driving creates a distraction.

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

• Position passenger's seat as far back as possible.

• Only use the Vehicle Diagnosis and Service System (VAS 5052 A) or Diagnostic System (VAS 5053).

• Testing and measuring instruments - 1 - must lay flat on the passenger's thighs and be operated by him or her, as shown in the illustration.