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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Rain Sensor: Testing and Inspection






Rain sensor, check

Function test
- Ignition in position II.
- Control lever windshield wiper in resting position.
- Activate the rain sensor function by pressing in the button on the wiper lever.
When the rain sensor is activated, a lamp lights up in the combined instrument panel
- Spray water on the outside of the windshield (using a spray bottle) where the rain sensor is positioned
- The rain sensor should start the windshield wiper function and sweep over the windshield
Hint: Carry out the function test 3 times.

- If the check is carried out with continuous sprays of water, the windshield wiper will function until the windshield above the rain sensor is dry.