Two problems related to check engine light on have been reported for the 2012 Mercedes Benz E350. The most recently reported issues are listed below.
The contact owns a 2012 mercedes-benz E350. The contact stated that at start-up, the check engine warning light illuminated. The vehicle was taken to mercedes-benz of sacramento (1810 howe Ave, sacramento, CA 95825) where the vehicle was diagnosed with a defective O2 sensor. The contact stated that before agreeing to the repair, he requested that the mechanic inspect the camshaft sensor for a possible link to the failure. The contact was informed that failure had in fact started with the defective camshaft sensor and spread to the O2 sensors and wiring harness. The contact was then given an estimate for the repairs. The manufacturer had been notified of failure and offered financial assistance for the repair but offered no additional assistance. The repair was still pending. The failure mileage was 87,000.
When starting the vehicle has a slow start. When in motion the vehicle drives rough, and cuts off, then the check engine light came on. This vehicle has a great maintenance record only serviced at the mercedes dealer and has 0nly 54000 miles. This is clearly an engineering issue which was a safety issue. Mercedes repaired. They found the camshaft damaged, head damaged, and gear damaged and replaced camshaft and gear only. They charged my for their engineering failures $4874. 38. For this engineering and safety faikure I believe this vehicle should be recalled before the lost health and life is lost, and owners should be recompense for the damage.