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ludwigberger29

Arkana check engine light and power loss

My 2019 Renault Arkana with a gasoline engine has a check engine light, increased fuel consumption, and feels like it lost power. Could this be a faulty inlet VANOS? My car has 243971 km, I am worried about oil sludge. Any advice?

Summary of the thread

A 2019 Renault Arkana with a gasoline engine is experiencing a check engine light, increased fuel consumption, and power loss. The issue may be related to a faulty inlet VANOS, possibly due to oil sludge, given the high mileage of 243,971 km. A similar case was resolved by identifying a defect in the camshaft solenoid valves, affecting variable timing. It is advised to seek professional diagnostics to confirm and address the problem, which was ultimately identified as a defective inlet camshaft solenoid valve.

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4 comment(s)

max_dragon65

I own a Renault Arkana as well and I had similar symptoms. It turned out to be a defect in one of the camshaft solenoid valves, causing the variable timing to malfunction. Have you checked the power supply to the valves? It may also be the issue.

ludwigberger29 (community.author)

How did you determine that the camshaft solenoid valves were the issue? Did you perform any specific tests or diagnostics to pinpoint the problem?

max_dragon65

The error codes pointed to the inlet camshaft. Given the mileage, and the symptoms you described, it's highly probable that your VANOS is failing. I would recommend taking it to a workshop for a proper diagnosis. It could be a defective valve or something else entirely.

ludwigberger29 (community.author)

I took it to a local mechanic, and after checking, it was indeed a defective inlet camshaft solenoid valve. The repair cost was around 250€, exactly as I feared. I appreciate your help in pointing me in the right direction.

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RENAULT

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ARKANA