# Electrical Problem?

**URL:** <https://community.cartalk.com/t/electrical-problem/84047>\
**Category:** Maintenance/Repairs\
**Tags:** c-class, suspension, mercedes-benz\
**Created:** [March 5, 2014, 6:33am UTC](https://community.cartalk.com/t/electrical-problem/84047 "2014-03-05T06:33:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Daisey\_Anne](https://avatars.discourse-cdn.com/v4/letter/d/65b543/32.png) [@Daisey\_Anne](https://community.cartalk.com/u/Daisey_Anne)\
**Post date:** [March 5, 2014, 6:33am UTC](https://community.cartalk.com/t/electrical-problem/84047/1 "2014-03-05T06:33:19Z")

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I have a 2001 Mercedes C320 and this has happened to me twice within the last two months. While driving, all of a sudden the lights on dash go out, including speedometer, odometer, gas gauge looks to be empty, heater/A/C off - the engine still running & the radio still working. I don’t know about the headlights because it was during the day & I didn’t think to check. Both times it was after 5:00 or on the weekend and my mechanic was closed. Next day after starting the car everything worked again. Any ideas what could cause this?

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**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\
**Post date:** [March 5, 2014, 8:06am UTC](https://community.cartalk.com/t/electrical-problem/84047/2 "2014-03-05T08:06:19Z")

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First guess would be a ground wire. Freshen up the connections and make sure the ground from the body to the engine is intact.

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**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\
**Post date:** [March 5, 2014, 11:35am UTC](https://community.cartalk.com/t/electrical-problem/84047/3 "2014-03-05T11:35:19Z")

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My first suspect would be the power connection to the dash or cluster has a bad connection to it. The trouble could be inside it also.
