BMW 545 owners have reported 26 electrical system related problems since 1996. Table 1 shows the 6 most common electrical system problems. The number one most common problem is related to the vehicle's electrical system (15 problems). The second most common problem is related to the vehicle's wiring (6 problems). For details of each of the problem category, use the links in the table.
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems | |
| Wiring problems | |
| Alternator/generator/regulator problems | |
| Battery Propulsion System problems | |
| Software problems | |
| Car Will Not Start problems |
The wiring inside of the headlights has dried up and fallen off, leaving bare electrical wire. The resulting was both of the headlights became non operational at night. To replace the headlights in the car with all the factory features is about 3200. 00 for parts alone. Read details...
Electrical wiring in headlights are disintegrating. The shielding is dry rotting and flaking off nearly every wire in both headlights causing them to malfunction during driving. Lights will cut off randomly. I�d imagine the wires are shorting out. Read details...
Drive moderately keeps popping up an service engine after getting BMW to check it an fix it also it won't crank sometimes but the battery an alternator is brand new but after it sit for hours it finally crank up, maybe it's an security issue but it's unnecessary Read details...
Main problem: vehicle exhibits highly unsafe tendencies of turning off randomly, leaving the driver with no power, no functioning gauges, no functioning lights, and more. Cause: faulty alternator and voltage regulator. Read details...
I purchased my used 2005 BMW 545i with only 55k miles on it in may 2009. On or about March 2010, the vehicle started jerking during acceleration and sometimes a hard "jolt" as if you hit a large object in the road or hit by another vehicle from the rear. Read details...