OliverRock

Safrane check engine light and fuel consumption

I have a 1999 Renault Safrane with a diesel engine and 188584 km. The check engine light is on, and fuel consumption is higher than normal. I suspect the inlet VANOS mechanics are faulty. Could a defect in one of the camshaft solenoid valves or a power supply issue be the cause?

4 comment(s)

I also own a Safrane with the same engine type and had similar issues. The check engine light was on, and I noticed a significant drop in power, especially at lower RPMs. Have you checked for oil sludge? It could be affecting the variable timing system. Do you also notice a decrease in performance?

Yes, I've also observed a slight decrease in performance, particularly when accelerating. I haven't specifically checked for oil sludge, but I will now. How did you resolve your issue? Was it indeed related to the VANOS solenoid?

Yes, my issue turned out to be a faulty VANOS solenoid. Although cleaning it helped temporarily, the problem returned. Given your symptoms and the age of the car, a failing solenoid is quite likely. I recommend taking it to a workshop for a proper diagnosis; they can check the solenoid's functionality and the wiring.

I took it to a workshop as suggested, and you were right – a faulty VANOS solenoid was the culprit. The repair cost me around 250€, but now the car runs smoothly again. Much appreciated!

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