definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
21,275 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.

2008 BMW 550 transmission problems

transmission problem

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2008 BMW 550 Owner Comments

problem #4

Sep 072010

550 6-cyl

  • 45,000 miles


The contact owns a 2008 BMW 535xi. While driving approximately 65 mph, the accelerator pedal was engaged and the engine began to sputter with an extensive reduction in power. The contact continued with caution and the vehicle was taken to a dealer where they replaced the fuel pressure sensor, spark plugs and performed an oil change. The failure persisted. The vehicle was taken to the dealer three times in which there were no resolutions. The high pressure pump was replaced on a different occasion. In addition, when encountering a bump in the road and down-shifting from third to second gear, an abnormal clicking noise would occur. Recently, the engine warning indicator illuminated. The vehicle was in the process of being diagnosed. The failure mileage was approximately 45,000. Updated 01/28/11 updated 02/07/11

- Madison, WI, USA

problem #3

Aug 152009


  • 20,000 miles
Transmission locked in parked and vehicle blocking moving truck. Unable to tow auto because dealership was unable to provide assistance for unlocking mechanism. Necessary to contact BMW directly for assistance to unlock transmission and vehicle subsequent towed to dealership.

- Amherst, NH, USA

problem #2

Oct 232009


  • 18,100 miles
My 2008 BMW 528I has now shifted into neutral, and then down-shifted, at high speed (60mph) without warning 4 times. Three of these incidents occurred on the freeways of los angeles. This latest incident almost caused me to be hit by multiple cars as I coasted to a gorepoint at a freeway offramp.

- Gardena, CA, USA

problem #1

Aug 302007


  • 2,000 miles
When engine is cold, car will not shift into reverse. It must be shifted into drive before it will shift into reverse. The first time this happened was in August-September 2007. The gear shift was replaced by the dealer. It happened again in October or November, 2008. The dealer downloaded all the software related to gear shifting and re-loaded it. The shift worked about one month until it happened again. As soon as I can get the car back to the dealer, they will have a third opportunity to fix the same problem.

- Pacific Palisades, CA, USA

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