When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
What in the heck would cause this to my friend's 2012 C250?
A little background first. This car is beat to heck. First it needed a starter and new battery and then I changed out the alternator for her. But just before, she had damaged the front end in the drivers side and the Windshield washer sprayer came on and would not stop!
So I changed out the alternator, cleared all the codes. alet it run for a good hour with no problems. She comes and gets it, drives it to a store and then the ECU relay melted! What in the world! You could also hear some motor running right below the driver side headlight (assuming something to do with the windshield washer?
Any Ideas at all what would cause this to overload and melt?
Last edited by ryanholi0; Jan 11, 2026 at 11:48 AM.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
