engine overheat MERCEDES-BENZ S CLASS 2007 User Guide

589 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Coolant level
Stop vehicle!
Switch engine off
The poly-V-belt could be broken.

Stop the vehicle in a safe location or as soon
as it is safe to do so and immediately turn off
the engine.

Check the poly-V-belt.
If it is broken:

Do not continue to drive. Otherwise the en-
gine will overheat due to an inoperative water
pump which may result in damage to the en-
gine. Notify an authorized Mercedes-Benz
Center.
If it is intact:

Do not continue to drive the vehicle with this
message displayed. Doing so could result in
serious engine damage that is not covered by
the Mercedes-Benz Limited Warranty.

Observe the coolant temperature gauge in
the instrument cluster (
page 28).
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