BMW 645Ci Repair and Maintenance
A guide to problems, costs, maintenance and repair for your BMW 645Ci
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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.
BMW 645Ci QuestionsWhy A/C blowing hot air? (2 answers)
2 years ago the dealership replaced condensor, compressor etc.. A/C worked good for 2 years althought havent used it accessively in the past summer seasons. I recently added R134A , autozone. 44dollar can w/pressure gauge.. The a/c came on cold for only two days, then started blowing hot air agai...
I have checked the fuses and disconnected the battery several times but the top will not go down. The navigation screen says "top not locked". We used the allen wrench and manually tried to lock/unlock to no avail.
It won't pass emissions so I need to LOCATE/REPAIR to 3 bad sensors.
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.
Certain passenger vehicles may have been built with incorrectly manufactured transmission guide plate part. This may cause the parking lock system to not activate when the transmission is placed in park. If the vehicle is parked on an incline and the parking brake is not engaged the vehicle may roll away causing an accident. The dealer will repair and replace the automatic transmission guide plate free of charge. The campaign # is 05V504000