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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Windshield: Testing and Inspection






Windshield/Wind noise

Symptom and function description

Note! The symptom should always be verified together with the customer.

The following tips may be of help to decide if the symptom is due to a product feature or if continued troubleshooting is needed.

Hint: Wind noise may be reinforced when roof rack or external antennas are installed.

Is the function OK?

Yes - No Fault Found

No - Fault Found

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