emmahuber7

Viano Diesel Seat Heater Problem

My 2007 Mercedes Viano diesel seat heater isn't working. There's no heat, and the diagnostics show an error code for the seat heating circuit. I think it might be the heating mat. Has anyone else had this issue, maybe with the thermal sensor, before I get it fixed?

4 comment(s)

I haven't had that exact problem, but seat heaters can be tricky. Is it both seats or just the one? Maybe check the fuse first? It could also be a bad connection somewhere. I'm just guessing, but it might be worth a look before you assume it's the heating mat itself.

It's just the driver's seat. Do you know which fuse it is in the fuse box? I want to check that before replacing the seat cushion or looking at the thermal sensor.

It's just the driver's seat. I am not certain about the exact fuse location in your Viano, but the manual should show it, or maybe a diagram near the fuse box itself. But with an error code, maybe the fuse is fine and it really is the mat or something else in the seat. If you are not experienced with automotive repair, it might be best to get it checked out by a workshop, just in case. Messing with the seat heater could be more involved than it seems.

I took it to a technician. They said it was a faulty heating mat, like I thought. The repair cost 390€, including parts and labor. Thanks for the help.

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