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juergenguenther9

GLS Hybrid Fuel Composition Error

Has anyone else seen a fuel composition error on a 2023 GLS Hybrid I'm getting a check engine light and the engine's stalling at idle Mileage is at 133175 km The error code points to a possible defective connection Is this a common issue with the fuel system or combustion chamber

4 comment(s)

gerhard_roth1

I haven't experienced the stalling issue myself, but I've had a similar check engine light on my GLS. It was related to the fuel mixture being off. The error memory indicated a problem with the fuel composition. I'd be concerned about potential engine knock if the fuel mixture is consistently incorrect and impacting fuel economy. Have you noticed any changes in performance besides the stalling?

juergenguenther9 (Author)

Thanks for the info When you say similar was it exactly the same error code and did it also point to a cable or plug connection issue

gerhard_roth1

While the exact error code eludes my memory, the diagnosis revolved around a faulty connection affecting the fuel system's ability to correctly assess fuel composition. Considering your hybrid engine and the potential for damage to the combustion chamber, I strongly advise consulting a qualified mechanic. A defective connection can easily lead to an incorrect fuel mixture and potentially cause engine knock. It's better to be safe than sorry.

juergenguenther9 (Author)

Appreciate the confirmation and advice Booked it in at the workshop and they found a loose connection as suspected Cost 95€ Sorted now Thanks

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