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tobiaseis5

H1 Rough Cold Start PTC Heater Suspected

Hi, I'm having trouble with my 2002 Hyundai H1 diesel. It's got about 33080 km on the clock. Lately, it's been running really rough when I start it cold, especially in this weather. The engine seems to struggle until it warms up. I also noticed my fuel consumption has gone up. I ran a diagnostic and it's showing an error in the memory. Could this be related to the PTC heater? I'm not very experienced.

Summary of the thread

A 2002 Hyundai H1 diesel is experiencing rough cold starts and increased fuel consumption, with a diagnostic error indicating a potential issue with the PTC heater. The problem may be linked to a defective electric auxiliary heater, as a similar case was resolved by replacing the PTC element. It is recommended to consult a professional for diagnosis and repair, as the HVAC system and electrical components can be complex to handle.

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4 comment(s)

lukasneumann2

Hey, I had a similar problem with my Hyundai H1 (don’t remember the exact year). Rough cold starts and high fuel consumption sound familiar. In my case, the electric auxiliary heater was the culprit. Does the error code specifically point to a heater issue?

tobiaseis5 (community.author)

Thanks for the reply! Yes, the error code does mention something about the 'electric auxiliary heater defective'. Was it expensive to fix?

lukasneumann2

Okay, sounds like it's the same problem I had. I'm no mechanic but from my experience, you might need to replace the heater unit. I tried to fix it myself, but the HVAC system and all the electrical components are a nightmare for me. I ended up going to a workshop. They told me that the PTC element was gone. I think it was around 350€, parts and labor included. Best to get a professional opinion.

tobiaseis5 (community.author)

Thanks so much for sharing your experience! I'll take it to a workshop and mention the PTC heater. Knowing what the likely cause and cost is helps a lot. Cheers!

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HYUNDAI

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H1