Operation CHARM: Car repair manuals for everyone.
Home >> Mercedes Benz >> 1987 >> 190E 2.3-16 (201.034) L4-2.3L (102.983) >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> System Specifications >> Engine Timing Marks
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)

Or, hide this message: temporarily or permanently

Engine Timing Marks

Engine Basic Timing Marks





- Position piston of No. 1 cylinder on ignition TDC.





- Check that 2 mm marking holes on camshafts (arrows) are exactly opposite each other.

If markings don't align, the camshaft timing must be adjusted.
pro multis · About Operation CHARM