2004 BMW 645Ci Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2004 BMW 645Ci

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2004 BMW 645Ci Problems

transmission problem

down shifts hard

New 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.

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2004 BMW 645Ci Questions

on 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.

BMW 645 ci Transmission (1 answer)

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....

My BMW 645ci transmission failure light keep coming on and staying on, (1 answer)

but car still drivable but reduces acceleration.

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2004 BMW 645Ci Recalls

The 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.

 

Brake Vacuum Pump Leaks Oil

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 Engine May Stall and/or Not Start

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.

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2004 BMW 645Ci Reviews

Ultimate driving machine.........when it runs. I have 70,000. miles on mine. It's had and still has oil leaks, trunk lid will not stay aligned and now it only opens with the key. The resevoir craked a leak, trunk leaked water into it and blew the $1200. amp so no sound no communcation center. now it will not run and I have been told, after a $800. "trouble shooting" tab that it has something to...
When it runs, this car is the Ultimate Driving Machine. The problem is that it does not run an average of 2 months out of the year, each year, since we bought it new in December of 2004. The repair file we have for this car is 3" thick. Just to name a few, we found out within a few weeks of owning the vehicle that both back wheels were cracked when we bought it. The washers around the ends o...
my headlight has mousture in it is there anyway to repaire it without spending 2000 to replace it with a new one plse someone who has had this problem get bak to me thnx

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