Possible Causes

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2002 Mercedes-Benz SL500, 2002 Mercedes-Benz S500, 2002 Mercedes-Benz S430, 2002 Mercedes-Benz E55, and 2002 Mercedes-Benz E430. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Manufacturer does not provide testing procedures for this fault.

Engine may have an increased tendency to knock from poor fuel, combustion chamber coking or engine mechanical damage. Inspect and repair as necessary.