Five problems related to engine and engine cooling have been reported for the 2005 Volvo S40. The most recently reported issues are listed below.
The contact owns a 2005 Volvo S40. When the vehicle was started, there was an abnormal vibration coming from the vehicle. Upon opening the hood and checking the engine, the contact noticed that the passenger side of the engine was fractured. The contact stated that the fracture was along the top side of the engine. The vehicle was not taken to be diagnosed. A dealer was not contacted. The manufacturer was notified of the failure. The approximate failure mileage was 43,000.
Car is all of a sudden accelerating on its own. It has happened a handful of times within the last month. I will make a turn, let off the gas peddle and then the car will just jerk forward revving up the rpms and accelerating on its own.
2005 Volvo S40 engine air conditioning malfunctioned. When the problem first begun the car would be cool at start then get warm until one day the air conditioning just quit working. I read on this forum authorized Volvo dealership admits this is a common problem in this year/make/model. The compressor clutch or compressor or both required replacing. . Read more...
Car loosing power and engine missing at highway speeds. Engine light went on. Failure of fuel pressure monitor.
2005 Volvo S40 t5 : multiple failures of oil trap housing at 22,500 and 68,330 miles. First failure occurred 10 months after purchase. Volvo checked valve (30677524), and replaced oil housing (30684381), hose clamp (976561) upgraded ecm petrol (30668282). . . All under warranty. Second failure occurred at 68,330 miles, Volvo again upgraded ecm (30668282), replaced hose clamp (976561), hose (8670008), and again replaced oil trap housing (30684381) due to clogged lines releasing air pressure. Cost of repair: $505 labor + $242 parts= $747. 17, no longer under warranty.