hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
85,762 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.

2007 BMW X3 engine problems

engine problem

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2007 BMW X3 Owner Comments

problem #15

Dec 032016


  • 147,000 miles


Right front motor mount bracket bolts sheared off. 3 of the 4 bolts were sheared off, and if the 4th had sheared before we got it to the repair shop this would have caused significant damage. If it had happened while driving this would have absolutely caused an accident.

- Lakewood, CO, USA

problem #14

Aug 172016


  • 116,000 miles
My 2007 BMW X3 (E83) front passenger side, "engine mount bracket bolts" snapped while driving vehicle. At least 3 of the 4 aluminum bolts snapped during normal vehicle operation which resulted in my engine resting on the vehicles water pump and eventually causing the water pump to fail. My mechanic noticed the snapped bolts when he attempted to install a new water pump. This is a major safety issue to have half your engine not properly mounted down and should be a factory recall. Just think of the damage a front end collision can cost with that part of the engine able to move freely. On the micro side it cost me a water pump. However it could have done more damage. Please recall this!!! numerous people online are reporting the same failure. It's a very dangerous and life threatening malfunction that could be avoided by BMW. The problem is galvanized corrosion between the different metals over time. The bolts are aluminum, and the engine mounts are magnesium-aluminum mix. I believe it is the magnesium that is causing the failure. There are a couple of fixes. 1-easy fix would be to take steel bolts and coat them with aluminum (the aluminum will slow corrosion and the steel will strengthen the bolt without giving way to galvanized corrosion). 2-other fix would be to make the bolts of the exact same mixture as the engine block (magnesium and aluminum) not just aluminum. The bolts still wont be as strong as the steel (aluminum) coated bolts.

- Homestead, FL, USA

problem #13

May 072016


  • 70,000 miles
When I pulled the cover plate off leading to the engine mount on the bottom right side of the engine, a sheared bolt fell out. As I search to where it came from I noticed it was one of the four bolts holding the engine mount to the engine. One thing to mention about the bolt is that is made of aluminum. It seems completely inadequate for a high stress area like an engine mount. I cannot tell you when exactly the bolt failed, likely in motion at some point between 70K and 80K miles.

- Mountain Home, ID, USA

problem #12

Jan 252016


  • 85,000 miles


Driving with 85000 miles on it and it just jumps when you push the gas. Hops like a bunny. Then it takes off like a race car...which is dangerous if a car is in front of my and I slam into them. This problem has came and went over weeks now. Had codes checked. There are no vaccum leaks or anything. I am not the only one having issues with this. Its dangerous and unacceptable of BMW.

- Sevierville, TN, USA

problem #11

Feb 022016


  • 119,000 miles
"takata recall" while driving knock sensor kept tripping on the check engine light had it replaced knock sensor kept tripping the check engine light after mechanics check more into it all four engine mount bolts were snapped off engine was pretty much rest against the exhaust they were the factory bolts made of aluminum.

- Richfield Springs, NY, USA

problem #10

Oct 202015


  • miles
I have a 2007 BMW X3 with both rear spring broken never have I seen this and also all four engine mount bolts are snapped. I'm the only one that drives it, so I know nothing traumatic has happened to it.

- Guttenburg, NJ, USA

problem #9

Sep 252015


  • 85,000 miles


While driving on interstate 72 in Illinois, we noted a low coolant level light. Checked the owner's manual, and it stated that this was not a major issue, but we should check it at the next opportunity. Coincidentally, the other party we were traveling with asked if we wanted to stop for coffee at a location 1.5 miles off the interstate. When we stopped, the low coolant light went off. Before getting back on the road, noticed that coolant was dripping from the front right side of the engine. A repair facility was nearby, and they investigated the leak and determined that it was emanating from a crack in the water pump. Also determined that the cause of the crack was the engine sagging. Further investigation determined that a lower engine mounting bolt was missing entirely. This was replaced along with the water pump, when the engine was jacked back into proper position. At this point it was discovered that the upper mounting bolts had sheared off inside the engine. This is a serious issue. We were one mounting bolt away from the engine sagging excessively, likely causing drive train seizure.

- Manassas, VA, USA

problem #8

Mar 102015


  • 88,230 miles
4 motor mount bolts were sheered. Took to dealership due to coolant leak and found that engine had become unmounted and was sitting on water pump that was cracked and causing the leak. I had noticed vibration but was not sure what it was. Over $2000 repair bill. This seems to be a common problem with this model BMW.

- Greer, SC, USA

problem #7

Apr 182014


  • 55,674 miles
Engine mount bolts sheared off at the head causing engine to fall onto subframe.

- Rio Rancho, NM, USA

problem #6

Aug 032014


  • 134,530 miles
I was driving on the interstate, exiting an off ramp, decelerating in speed when the engine died, the car stalled and I lost power steering. This very same thing happened 5 weeks prior while I was on the interstate traveling 60 mph.

- Lake Saint Louis, MO, USA

problem #5

Apr 112014

X3 6-cyl

  • 76,000 miles


2007 X3 3.0si 76000 miles. While performing an oil change, user noticed oil drain plug not aligned with opening in stiffening plate. Removed plate and M12 bolt fell out. Upon inspection, all passenger side engine mount bolts have been sheared off or fallen out. This vehicle has never been in an accident and is driven conservatively. Researched on-line and found that this is not an isolated incident. Prolonged vehicle use with sheared engine mounting bolts could cause drive-line failures potentially resulting in accident, injury, and/or death.

- Frederick, CO, USA

problem #4

Jun 192013

X3 6-cyl

  • 67,000 miles
6 out of 8 of my motor mount bolts were sheared or broken in half. This is a common BMW problem with the N52B series BMW engines and BMW does not take any ownership of this obvious design or manufacturing flaw. This causes a very unsafe driving dynamic in that the engine is no longer held securely in place.

- Elmhurst, IL, USA

problem #3

Jun 102013

X3 6-cyl

  • 90,000 miles
Low coolant light came on, and BMW dealer found a crack on the water pump. Upon further inspection, the engine was noted to be canted, making it impossible to attach the new water pump. It was discovered that the engine mount bolts (total of 4 on one side) had all broken off, causing the engine to tilt. The repair was $2000 and when I called BMW usa, they said that there would be no compensation back to me, and that the broken bolts were secondary to the car having 90,000 miles. Changing bolts is not a normal wear and replacement item, and the car has never been in an accident. Our vehicles are gently driven, and never go off road, so I am mystified how this happened.

- Clarksburg, MD, USA

problem #2

Jun 082013


  • 78,000 miles
The contact owns a 2007 BMW X3. The contact stated that while driving approximately 55 mph, there was a severe vibration felt without warning. The contact noticed that one of the engine mount bolts was sheared. The vehicle was taken to an authorized dealer, who informed that three of the four engine mount bolts were sheared. The vehicle was not repaired. The manufacturer was notified and they offered to provide a further investigation related to the defect. The approximate failure mileage was 78,000.

- Scottsdale, AZ, USA

problem #1

Apr 012013

X3 6-cyl

  • 75,000 miles
3 out of 4 engine mount bolts sheared off while driving. This caused the engine to drop 2 inches and damage the cooling system. If the engine had dropped further it would likely have caused a more catastrophic failure and accident.

- Highwood, IL, USA

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