hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
191,695 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.

2006 BMW 330 engine problems

engine problem

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2006 BMW 330 Owner Comments

problem #16

May 042009


  • 51,000 miles


Passenger air bags and seat belt wont work and BMW wont fix. Electrical:radio, climate control, headlights and windshield washer pump. Window regulators. And the worst:learning from X_employees of BMW say that BMW purposefully miss-torques oil pan, valve cover and oil filter housing so the fail right after 50,000 mile warranty. Every E90 has these problems. And window regulators all except driver side. In motion.

- Metairie, LA, USA

problem #15

Jan 072013

330 6-cyl

  • 110,000 miles
Front two valve cover bolts sheered off causing oil to leak directly on the exhaust.

- Columbus, OH, USA

problem #14

Jan 262015

330 6-cyl

  • 117,000 miles
Broken cylinder head bolt near oil filter hosing found this to be a very very common problem with (N52) engines.

- Manteca, CA, USA

problem #13

Sep 292013

330 6-cyl

  • 1,800,000 miles


One of my valve cover bolts broke causing the oil to leak everywhere.

- Phoenix, AZ, USA

problem #12

Dec 202014


  • miles
I hit a bump in the road, complements of moonachie, New Jersey route 120, New Jersey has the worst roads in the country and one of the highest taxes too. I had an auto parts place that sold me 2-struts-2 shocks, which the roads ripped apart on my car tell me, he'd be out of business if it wasn't for New Jersey. After I hit the crater in the road I felt a loud rattle bumping sound when I slowed downed and accelerated, the engine never really idled right afterwards. I had a friend look at the car and he told me all four bolts connected to the motor mounts, all of the bolts separated and broke off in the engine, they snapped off completely and broke the motor mounts as well. I hear from reading on this site the bolts were a manufactures reject, faulty bolts. That being said, I wish I could litigate against BMW for using the bolts and the state of New Jersey for not properly caring for the roads and leaving hazardous conditions on the roads which I might add be fatal for some unfortunate person. Visit hoboken, New Jersey and check out their main street, Washington, the roads in newark, New Jersey are much better than there.could New Jersey's politicians be stealing this money set aside for road repair" nah, of course not, in New Jersey"

- North Bergen, NJ, USA

problem #11

Oct 082014


  • 160,000 miles
Engine valve cover head bolts snapped. Qty. 3.

- Duluth, GA, USA

problem #10

Sep 262014


  • 126,313 miles


A bolt broke on the valve cover. It's not from cold weather or lack of maintenance, it's clearly a manufacturer default. When advised by valley BMW in modesto I learned this happens in most of these models that year. It's from over torquing the bolt or a faulty bolt or something else but it's clearly not the fault of the consumer. Mine broke on the passenger side and it causes the oil to leak on the exhaust. This is a safety issue and must be addressed immediately. This also happens on the oil pan! msauceda1.blogspot.com/2013/07/BMW-330I-2006-broken-bolts-valve-cover.html it costs over $1000 to fix and after researching further, I found this is happening a lot and many consumers as well as repair services are frustrated and understandably angry. Please address this and make BMW recall these vehicles for repair before someone gets killed! https://www.youtube.com/watch?V=5co92U-WA94.

- Hughson, CA, USA

problem #9

Sep 022014


  • 87,243 miles
The contact owns a 2006 BMW 330I. The contact stated that fuel was leaking from the oil filter housing. The vehicle was taken to an independent mechanic. The technician diagnosed that the ball cover gasket needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 87,243.

- Weston, FL, USA

problem #8

Nov 012013

330 6-cyl

  • 70,000 miles
The contact owns a 2006 BMW 330I. The contact stated the passenger air bag sensor illuminated on the instrument panel. The contact mentioned that the failure persisted even when the seat was not occupied. The dealer stated the front passenger seat occupant sensor needed to be replaced. The vehicle was repaired. The failure mileage was 70,000. Updated 10/29/14 updated 4/23/15

- Salem, OR, USA

problem #7

Feb 032014


  • 73,000 miles
BMW na has issued a recall to address broken head bolts in a number of 2010 models, which can result in engine failure. I have spoken with several BMW owners and found that this issue extends beyond their initial recall into earlier models, but BMW na is ignoring the issue outright in the hopes that it will disappear. I have spoken with BMW na several times and they have given me the runaround for several months and put major smokescreens up in my attempt further the conversation/investigation of the issue. I'm reaching out to NHTSA because I have no other recourse and I know this issue is not a localized issue with one year model, but symptomatic of several years and models. Please help the driving public by assisting me in addressing this issue with BMW.

- Manhattan Beach, CA, USA

problem #6

Feb 202014

330 6-cyl

  • 90,000 miles


When starting from idle to running state at a stop light the whole car started shaking. Took the shop and they say it a faulty coil/spark plug. Costs me $600-$1000. Looks like this is a common problem in BMW 325I 2006. They should fix this.

- Union City, CA, USA

problem #5

Jun 012013

330 6-cyl

  • 98,000 miles
My 2006 BMW 330I began leaking oil. After inspection it was determined to be broken bolts. This vehicle has been properly cared for. It has not been in an accident and has been serviced and maintained. After online review, this problem has happened to several bmws. The oil leaks onto brakes, belts, exhaust, etc.... causing a severe safety hazard. This needs to be elevated to a recall.

- Sykesville , MD, USA

problem #4

Aug 222013

330 6-cyl

  • 47,032 miles
Broken cylinder head bolts at the front timing cover. Symptom was oil leak at timing cover. Upon inspection, the heads of 4 bolts had sheared off and 3 bolt heads had dropped through the timing chain housing and ended up in the oil pan. First, head bolts should not fail. Second, the sheared bolt heads pass through the timing chain housing and could interfere with the timing chain and cause immediate engine failure.

- El Granada, CA, USA

problem #3

Sep 202012

330 6-cyl

  • 79,000 miles
My car started having a massive oil leak at around 79,000 miles. The motor seals started to fail once the car had about 70,000 miles on it. The general consensus is that the motor seals are very common to prematurely fail. The bolts that hold the motor together started to break at around 80,000 miles.

- Hagerstown, MD, USA

problem #2

Aug 112013

330 6-cyl

  • 54,000 miles
I was driving my vehicle on the highway in the left lane, trying to pass a car in the middle lane. After getting in front of the car in the middle lane, I tried to accelerate so I could re-enter the middle lane, but the car acted as if it slipped into neutral and would not accelerate. The engine growled as if it were in neutral. It kept driving, but would not accelerate, despite me stepping harder on the gas. This was potentially dangerous as there was a car immediately behind me, which could have rear ended me at over 60mph, and the car in the middle lane that I was trying to pass could have also hit me on the passenger side of my car. In researching this, many BMW owners have been complaining about this, and yet BMW has not issued an investigation or recall: www.consumeraffairs.com/automotive/bmw_trans.html there are 650 complaints regarding this problem at the above link. People should not be having transmission problems like this under 75K miles.

- New York, NY, USA

problem #1

Jun 152012

330 6-cyl

  • 104,526 miles
Independent repair shop noted aluminum head bolts broken which could cause extensive damage to engine. Broken bolts caused oil leak and heads of bolts could have gone into the timing belt destroying the engine. Independent repair shop directed us to the dealership stating they had noted this issues on almost all of this year and model. Repair cost was very expensive.

- Arroyo Grande, CA, USA

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