2004 BMW 330xi Common Problems
| Brakes |
No common problems reported. |
| Drive Train |
After 60,000 miles, the front outer half-shaft boots tend to tear and
leak grease. In most cases, only the boot will have to be replaced; however, if
it is not repaired soon enough, the half-shaft may need to be replaced.
The front outer boots are put under heavy stress because of their
involvement with the suspension when making turns. It is not common to
see the other CV boots leak. |
| Engine |
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| Exhaust & Emissions |
No common problems reported. |
| Electrical & Lights |
No common problems reported. |
| Miscellaneous |
A creak or squeak can be heard from the top of the front or rear doors.
This noise is most noticeable when the windows are fully up. The noise is
caused by the decay of the flocking material on the door seals. New
door seals, Teflon tape, special lube, or a combination of all of these
may be needed to eliminate the noise. |
| Suspension & Steering |
Power steering hoses are known to fail occasionally, and it is not uncommon for multiple hoses to be leaking at the same time. |
| Heating & Air Conditioning |
No common problems reported. |
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