Rifter auxiliary heater malfunction

I had something similar last winter with my Rifter. The symptoms sound identical. Have you checked the glow plug? A defective glow plug stopped my auxiliary heater from working. The temperature sensor or blower motor might be worth a look too.

Could you give me more details about your issue and how you knew it was the glow plug? Were there other error codes or diagnostic steps you took?

The error code pointed to the auxiliary heater, but the glow plug wasn't working. I initially thought it was a climate control or heating system issue. Modern diesels are complex, so I'd suggest a workshop visit for a proper diagnosis. Replacing the glow plug fixed it. The repair was around 440€, including parts and labor.

Thanks for the detailed explanation. I'll book a workshop appointment to have the glow plug and related parts checked, based on your experience. I appreciate you sharing your knowledge.