2004 BMW 645Ci Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 BMW 645Ci
Ask a mechanic in our community
Never overpay. Check prices with our estimator
2004 BMW 645Ci ProblemsNew Brake Pad Wear Sensor Design Will Prevent Squealing
If the brakes are squealing, there's a good chance it is the brake pad wear sensor. A new design was implemented in January 2006 and can be identified by its green color.
2004 BMW 645Ci Questionson my 2005 645, the transmission malfunction light comes on, an the car shuts dw (1 answer)
after which I need to jump the car off to start it again.
2004 BMW 645 ci Transmission Malfunction light comes on and stays on, car still drivable but with reduced acceleration, took to BMW and they said I need a new strike plate but if that don't work we will try something else. can't enjoy this car because of the faulty symbol keep coming on....
but car still drivable but reduces acceleration.
2004 BMW 645Ci RecallsThe Positive Battery Cable Connection in the Trunk Can Overheat
The insulated connector for the positive battery cable may have been incorrectly attached to the trunk floor panel, which can lead to a loosening of the bolt connection. Loosening of the connection can cause an increase in electrical resistance and overheating of the cable connection, which could lead to a fire, even when the vehicle is not in use. As a precaution, owners are advised to park outside until the remedy has been completed. Dealers will secure the battery bolt cable connection as necessary to correct this concern.
The brake system vacuum pump check valve can leak oil and contaminate the power brake booster. This can result in loss of power brake assist. Dealers will repair the vehicle as necessary free of charge to resolve concerns.
The digital management control (EMC) unit may not have been produced according to specification. The engine may stall and not restart. As a result, a loss of power steering, and after repeated actuation of the brake pedal, a loss of brake power assist will occur. These conditions could result in a vehicle crash. Dealers will install a new (EMC) unit to correct this issue. This recall began on July 16, 2004.