Volvo S40 owners have reported 1 problem related to loud engine noise (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Volvo S40 based on all problems reported for the S40.
The contact owns a 2007 Volvo S40. While driving, there was an abnormal noise coming from the engine and the check engine warning light illuminated. The vehicle was taken to an independent mechanic who diagnosed that the pvc valve failed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 117,000.
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