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KiraRacer

Tourneo rear window heating failure

My 2015 Ford Tourneo, diesel engine, with 232640 km, has a dead rear window heating. There's an error stored, and the windshield heating seems weaker. Could it be a fuse or a heating coil issue?

Summary of the thread

A 2015 Ford Tourneo experienced a failure in the rear window heating, with an error stored and weaker windshield heating. The issue was suspected to be related to a fuse or heating coil. However, it was suggested that a discharged or defective battery could be the cause. After testing, the battery was found to be heavily discharged, and replacing it resolved the heating issues.

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4 comment(s)

elisascholz1

Interesting problem! I had a similar issue with my old Renault Scenic. The rear defroster just wouldn't kick in. Did you check the battery's health? A discharged or defective battery can cause weird electrical gremlins.

KiraRacer (community.author)

Battery, huh? I wouldn't have thought of that. The car starts fine, but maybe it's not delivering enough juice for the heating element. Did yours also start fine, even with the rear defroster not working? Was the battery the definite cause?

elisascholz1

Yes, the car started without any problem. It was only when the heating load was higher that problems occurred. Think of it as trying to run too many appliances on a single extension cord. In my case, after changing the battery the windshield heating worked as expected. Based on those error codes and symptoms, I really believe you may want to have it checked in the workshop.

KiraRacer (community.author)

I had the battery tested, and you were spot on. It was heavily discharged and causing chaos. A new battery and 290€ later, the rear window is toasty again! You saved me hours of fruitless troubleshooting.

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FORD

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TOURNEO