sophiebrown7

Boxer rear window heating problem

My 2023 Peugeot Boxer electric has a rear window heating issue. Diagnostics show an error, and the windshield heating is weak. At 126016 km, I suspect a bad battery. Anyone else seen this?

A 2023 Peugeot Boxer electric is experiencing a rear window heating issue, with diagnostics showing an error and weak windshield heating. The problem may be linked to a suspected bad battery, as indicated by a significant voltage drop under load. A similar issue in another vehicle was resolved by identifying and replacing a faulty battery cell, suggesting that checking and potentially replacing the battery could be a solution.

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4 comment(s)

Interesting. I had similar rear defroster issues on my 2018 Volvo V90. Error codes, weak windshield heating... Sounds familiar. What voltage is your battery showing when the engine is off?

Thanks. I haven't measured the voltage directly, but the internal system shows a big drop under load when the rear window heating is on. Did your Volvo do the same?

Yep, exact same thing. Voltage would plummet when I hit the rear window demister. Ended up being a bad cell in the battery. I'd get it checked out at a workshop. Saved me a lot of headache.

Thanks. Based on that, I'll get the battery checked at a workshop. I think it'll need replacing, costing around 290€. Your help is appreciated.

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PEUGEOT

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BOXER