Condition for fault identification

Test condition:

The fault is recognized when the adjustment range deviates from the base adjustment range by more than 1°.

Potential problem source(s):

• Wear at the travel stops
• Wear in the Valvetronic mechanism

Terminal condition: none

Voltage condition:

• Onboard electrical system voltage between 9 V and 16 V

Temperature condition:

• Engine warmed to normal temp, above 80 °C

Time condition:

• Adjustment range check every 18000 min. of operating time

Other conditions:

• Shutdown phase