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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Notes (Help Texts)




Notes:

The compression pressure check must be run prior to the running-smoothness check!
Reason: After the running-smoothness check, the engine will be to too hot for a compression pressure check.


Test report:
It is recommended to create a test report [4] after running the measures.

The test report summarizes all the results and provides information.