timherrmann1

V Klasse fuel pressure woes Engine light and rough running

V Klasse diesel 2006 fuel pressure issue Engine light is on and it's running rough What could it be I've got 149001 km on the clock Lately the check engine light's been popping up and the engine's running rough Especially at idle where it sometimes stalls and when accelerating it feels like jerking I suspect it's something to do with the fuel delivery maybe the fuel pump or fuel injectors Any ideas I'm thinking it might be a dodgy cable or plug connection to the fuel pressure sensor Could that be it

A 2006 V Klasse diesel is experiencing fuel pressure issues, indicated by an engine light and rough running, particularly at idle and during acceleration. The problem is suspected to be related to the fuel delivery system, possibly involving the fuel pump, fuel injectors, or a faulty connection to the fuel pressure sensor. After consulting with others who had similar issues, it was suggested to inspect the fuel pressure sensor and related connections. A workshop diagnosed and fixed a defective cable at the fuel pressure sensor, resolving the issue.

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I'm not a mechanic, but I experienced similar symptoms in my V Klasse. The check engine light illuminated, the engine operation was rough, and stalling occurred at idle. The issues suggest the fuel system is compromised. Have you considered the fuel pressure sensor itself as a potential source of the problem?

You had the same issues Really Did replacing the fuel pressure sensor fix it Or was it something else I'm trying to avoid a huge bill

I cannot definitively confirm that replacing the fuel pressure sensor will resolve your issue. However, I recommend a thorough inspection by a qualified workshop to diagnose the root cause. It is better to be safe than sorry. They will be able to test the fuel system and pinpoint the exact problem.

Thanks for the advice Took it to a workshop and you were right They found a defective cable at the fuel pressure sensor Replaced it and the engine runs smoothly again Cost me 95€ Fuel economy should be back to normal now

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MERCEDES

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VKLASSE