emilmiller3

Seat Alhambra EGR Valve Issue

I'm experiencing a potential EGR valve issue with my 2014 Seat Alhambra diesel engine at 71004 km. Symptoms include reduced engine power, check engine light, smoke during acceleration, rough engine running, higher fuel consumption, jerking, and a hissing sound. I suspect a defective or jammed EGR valve. Prior to taking it in, I wanted a sanity check. Would a faulty EGR valve cause these symptoms? I'm concerned about failing the vehicle emissions test with these issues.

4 comment(s)

That sounds tricky. I'm no expert, but those symptoms could point to a vacuum leak somewhere, maybe affecting the EGR valve? Is the smoke black or white/blue? Have you checked for damage to vacuum lines?

The smoke is black, and I haven't noticed any damage to the vacuum lines, though a check is in order. If it is a vacuum leak, could that alone cause the rough idle and jerking, or is the EGR valve the more likely culprit, especially with the increased fuel consumption?

Okay, black smoke suggests too much fuel, which could be linked to a faulty EGR. Even a small vacuum leak could cause a rough idle and jerking, but with those symptoms, the EGR valve seems like the prime suspect. Given your worry about the emissions test, I'd consider taking it to a workshop. They can properly diagnose it and confirm whether it's the EGR or something else affecting your vehicle emissions.

It was the EGR valve. The replacement was 355€, and the Alhambra runs smoothly again. Thanks for confirming my suspicions.

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