2003 BMW Z4 Electrical system Problems

“Passenger door lock will not unlock with the key fob or the interior switch. All other locks respond appropriately. The door will open manually with the interior handle. I replaced the lock actuator with no improvement. I am now trying to replace the electrical relay. The date below is approximate. I am the original purchaser. I have not been happy with Bmw service department.”

“The problem is that the steering wheel does not return to center without considerable assistance. The problem is definitely worse when car is warmed up and is also worsened by increased outdoor temperature. This is a real safety concern. My dealer charged me $104.00 for diagnostics and told me to keep the battery charged. This has had ne effect on the problem.”

“When steering sharply or turning the wheel frequently like to parallel park for example, the electrical suddenly completely shuts down in my car. The car's power completely dies and I lose ability to steer. Sometimes this is while making a quick turn with oncoming traffic approaching quickly. I must stop turning, wait for the power to turn back on, and resume driving as soon as possible. This is very dangerous and I am scared to drive my car.”

“Air bag warning light has been on for three years. Have had 3 tests incl lieth Bmw test that verifies it is the passenger side occupancy sensor mat. This defect is a known problem in many Bmw models. Bmw refuses to fix it yet requires me to do these diagnosis (for a fee) over and over. Not only that - they have drastically raised the price to repair to >$1400. I seriously question the safety of the car and feel Bmw uses the issue as an opportunity to make high profits off the safety concerns of its customers.”

“The central locking system does not work correctly. It operates the glove box, passenger and driver doors as well as gas cap door. It does not respond properly to fob or by key. At times all locks are frozen to the point where you can not open to get in or gas. Right now passenger door has been locked for 30+ days. Cannot open at all. Took to a mechanic who ordered a new actuater from Bmw dealer, first one did not work. Second one installed and the problem is not solved. ($240.00). Mechanic tells me that something is burning and I must take to dealership. …”