Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Activation of Variocam Plus



2470 Activation of VarioCam Plus

The new 3.6-litre and 3.8-litre engines also use the familiar VarioCam Plus camshaft adjustment system. It features the familiar 'vane adjuster' and 'switchable hydraulic tappet' control elements for adjusting the timing of the intake valves and switching the maximum valve lift of the intake valves between 3.6 mm and 11.0 mm on the basis of a map respectively. To improve gas exchange, the map for VarioCam Plus in the Motronic control module was newly tuned. This notably contributes to achieving the high specific output and torque values.