Seat Ateca Coolant Loss Issue

I am experiencing an issue with my Seat Ateca, built in 2020, diesel engine. The coolant level is consistently low, triggering the check engine light and storing an error. I've checked the coolant level multiple times and refilled it, but it keeps dropping. Could this be a sign of a more serious problem?

4 comment(s)

Low coolant is never a good sign. Check for coolant leaks around the engine, radiator, and hoses. Any visible residue? Keep an eye on the engine temperature gauge while driving. Has the car been overheating? Maybe it's just air pockets, but it's best to rule out bigger issues first.

No visible leaks that I could find. You mentioned air pockets; how would I check for those, and is it something I can fix myself?

Air pockets can be tricky. If you're not seeing any leaks, it's less likely, but possible. Unless you're comfortable bleeding the cooling system, I'd advise against fixing it yourself. Given the error code and persistent coolant loss, it's probably best to have a workshop take a look. They can pressure test the system to find any hidden coolant leak and properly diagnose the error. Ignoring it might lead to engine overheating and bigger problems.

The workshop found a defective cable or plug connection. Replacement fixed the error. Total cost was 95€.

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