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fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
13,757 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 BMW 330 engine problems

engine problem

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2003 BMW 330 Owner Comments

problem #7

Feb 012010


  • 79,096 miles


The car had no symptoms leading up to the event. Car was idling in parking lot to warm up and randomly turned off. Would not turn back on and had to be towed to a shop. Found out that the crankcase ventilation system froze causing oil present in all six cylinders. System was replaced once the mechanic had access to the technical service bulletin. Mechanic was surprised to see BMW had no recalls for this design flaw since it is very dangerous. If the car had been moving with 2500-3500 rpms, much more damage would have been caused with anywhere from piston rings to engine block in addition to an accident and possibly death or injury.

- Fairfax, VA, USA

problem #6

Mar 132006

330 6-cyl

  • Manual transmission
  • 1,000 miles
Erratic idle... when stopped at a stop light, car in neutral, the rpms rev in spikes from 500 to 1500, up and down, up and down. The car never resets to a constant idle. Car has been in shop 8 - 9 times over 18 days total. No solution. Tech told me BMW know of problem but has no plans to find a fix.

- Highlands Ranch, CO, USA

problem #5

Sep 182003

330 6-cyl

  • Manual transmission
  • 700 miles
There is a problem with the BMW 3.0L engine where idling once the engine is warmed-up is usually very rough in the range of 500-700 RPM. There is also a tendency to dip below 500 RPM and stall out. This started happening when the car only had 700 miles on it. I consider the stall a failure.

- Wilmington, DE, USA

problem #4

Apr 262004

330 6-cyl

  • Manual transmission
  • 9,000 miles


Car has stalled twice for no apparent reason. Car has consistent rough idle and verges on stalling at times.

- Hayward, CA, USA

problem #3

Apr 152004

330 6-cyl

  • Manual transmission
  • miles
My 2003 BMW 330I zhp has a rough idle and occasionally stalls. I've had it serviced 3 times, but issue still not resolved.

- Clayton, CA, USA

problem #2

Mar 282004

330 6-cyl

  • Manual transmission
  • 6,500 miles
2003 330I zhp (performance package) : 6K miles... car idle's rough and stalls occasionally. Dealer / service had no error reports in the computer, said they could do nothing about it. Problem continues...

- Venice, CA, USA

problem #1

Mar 092004

330 6-cyl

  • Manual transmission
  • miles
Erratic engine idle and idle engine rpms will drop causing a stall/stutter. This happens frequently and in all types of weather conditions. This effects all 330I zhp (performance pkg) model.

- Smyrna, GA, USA

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