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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Timing Component Alignment Marks: Locations

Timing Component Alignment Marks






Note: Mercedes Benz does not rely on visual markings on the camshafts. Correct crankshaft to camshaft timing is achieved using mechanical stops and alignment pins (1). Refer to Camshaft, Engine - Testing and Inspection - Procedures Testing and Inspection

CAUTION! Incorrect setting/adjustment without the use of special tools could damage or break the camshafts. Valves could also be bent through contact with the piston crowns. Always note installation instructions and use specified special tools, procedures, and sequences.