Service Wrench

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Larry - 01 Dec 2004 15:20 GMT

Does anyone know how to reset the service light (Wrench) in a 2002 C Class
without bringing it for dealer service. It is out of warranty and I am just
changing the oil till I trade it in the spring.

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Tiger - 01 Dec 2004 21:00 GMT

Should be in your owner's manual on how to reset that.

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Josh - 01 Dec 2004 21:57 GMT

Larry,

Try this (from an old post):

> You use the same button that you press twice to display the remaining FSS
> mileage. It's usually the lowest of the three buttons on the left side of
> the instrument cluster; on yours, probably the (R) button.
>
> You also use the ignition switch. There are four positions of the

ignition

> key/steering lock:
>
[quoted text clipped - 10 lines]
> displayed. Within 10 seconds, turn key in steering lock to Position (0).
> Press and hold Button (R) while turning key in steering lock to Position

(2)

> again. The present status for days or distance is displayed once more.
> Continue to hold Button (R). After approximately 10 seconds, a signal
> sounds, and the display shows the reset mileage or distance. Release

Button

> (R).

> Does anyone know how to reset the service light (Wrench) in a 2002 C Class
> without bringing it for dealer service. It is out of warranty and I am
> just changing the oil till I trade it in the spring.

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