Volvo S40 owners have reported 103 electrical system related problems since 1996. Table 1 shows the 23 most common electrical system problems. The number one most common problem is related to the vehicle's electrical system (49 problems). The second most common problem is related to the vehicle's car will not start (10 problems). For details of each of the problem category, use the links in the table.
The contact wife owns a 2005 Volvo S40. The contact stated the vehicle was hard to start for several days before not starting at all. The check engine light was illuminated. The vehicle was repaired by the contact, a previous Volvo technician. Read details...
After parking car and turning car off, airbag, brake, and information warning lights stay on, as does ventilation system. Passenger seat has excess water underneath. Now car will not start. Read details...
Headlight wiring- made an attempt to change light bulbs for headlamps. Covering around electrical wiring harness which connect to headlight crumbled in my hands and electrical wiring is exposed. Worries that this may be potential fire hazard to my vehicle and myself. Read details...
At least 5 times I have had the car in the Volvo dealership. The car without warning, powers down to 50%, the windshield wipers start up, all the gauges drop to zero position and abs brake malfunction lights light up. If you pull over and stop, the car shuts down and you can not pull out the key. Read details...
The starter control unit (scu) on my 2005 Volvo S40 has ceased to function twice in the 5 years that I've had it (50,000 miles). Essentially, this means that the scu does not read the key (the car tells me I have a "key error"), and therefore the car shuts down completely and does not Read details...