hannesschulz27

SpaceTourer Overheating Communication Error

I've got a 2022 Citroen SpaceTourer with a diesel engine that's giving me a headache. It's got about 207997 km on the clock. The engine's been overheating, and the check engine light is on. I also found some coolant spilled under the van the other day, seems like there's excessive pressure in the cooling system. I ran a quick scan and it's showing a control unit communication error. I'm guessing it's a CAN bus issue or something? Anyone seen this before?

A 2022 Citroen SpaceTourer with a diesel engine was experiencing overheating, a check engine light, and a coolant spill, indicating excessive pressure in the cooling system. A diagnostic scan revealed a control unit communication error, suggesting a potential CAN bus issue. The problem was traced to a defective cable connected to the coolant sensor, which was replaced by a professional, resolving the issue.

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4 comment(s)

Based on the information provided, a control unit communication error, in conjunction with the overheating and coolant spill, does suggest a potential issue with the vehicle's data link or a related connectivity problem. Have you checked the cable and plug connections of the affected components for any visible damage or corrosion?

Thanks for the reply. When you say 'affected components', which ones should I be focusing on? I'm not really sure where to start looking, and I don't want to mess something up even more.

Given the symptoms and error code, it would be prudent to inspect the engine control module (ECM) and any related sensors within the cooling system. However, considering your stated level of expertise, I would recommend consulting a qualified technician for a comprehensive diagnostic assessment. Continuing to operate the vehicle in its current state may cause additional damage.

Okay, I appreciate the advice. Sounds like it's best to leave it to the professionals. Took it to the workshop, turned out a cable to the coolant sensor was defective. They replaced it, cleared the code and all the symptoms are gone now. Cost me 95€.

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CITROEN

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SPACETOURER