The contact owns a 2009 BMW 535I. The contact stated that while driving at an undisclosed speed, the vehicle vibrated violently with a message displayed to, "Check Engine -?" Engine Power Reduced-??. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed failures with the spark plugs and ignition coil. The vehicle was repaired, but the failure reoccurred. The vehicle was taken back to the independent mechanic, who diagnosed failures with the valve cover gasket and upper radiator hose. The vehicle was repaired, but the failure reoccurred. The vehicle was taken back to the independent mechanic, who diagnosed failures with the evaporative leak detection assembly, water pump, and high-pressure fuel pump. The vehicle was repaired, but the failure reoccurred. The manufacturer was notified of the failure but did not assist. The failure mileage was 70,000.

- Queens, NY, USA

I was traveling on the interstate going 75mph when my car lost all power, shut off and left me without power and stranded due to a fuel pump. Upon further investigation I've found that BMW and specifically the "N54" motor that I have a severe amount of complaints for this exact reason. There was an extended warranty put in place for certain parts however not all the parts that cause this type of a failure. I've tried working professionally with BMW of usa but because I wasn't involved in a crash from said failure they just refuse to help. I do not think any car with less than 100K miles on it should by any means have this severe of a break down potentially causing a rather fatal outcome. Luckily I am an aggressive driver and can handle a car with lost power and not collide into a wall which I nearly did. This needs to be addressed with BMW usa as it is unacceptable for a high end turbo vehicle to have complete failure while driving at highway speeds. BMW forums all over the internet have shown me thousands of people have this problem. Sadly they may not know NHTSA exists to file a complaint. I sincerely hope your group can help us helpless consumers of BMW products gain a safer driving experience. BMW recalling one fuel pump and not the other, or extending the warranty on turbos yet not the subsequent parts that they operate and it causing this type of a break down is truly truly scary as well as unacceptable. Please help!

- Lakeland, FL, USA

The contact owns a 2009 BMW 5 series. While driving 75 mph, the vehicle's power seized and the high pressure fuel pump warning indicator illuminated. The vehicle was towed to an independent mechanic, but was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 59,500. The VIN was not available. Updated 01/05/2017 updated 01/23/17.

- Menlo Park, CA, USA

2009 BMW 535I. Consumer writes in regards to engine malfunction that caused vehicle fire. The consumer stated the vehicle was in the process of being towed, when it caught on fire. The consumer stated there was no unusual service history. The high pressure fuel pump was replaced twice, once as a recall. The vehicle was serviced for stalling problems, which was the same issue that occurred on the day of the fire.

- Hanover, MA, USA

2009 BMW 535I: While accelerating, a sudden near-stall/loss of power occurred while attempting to enter into an intersection, nearly causing an accident. A warning was alerted through the idrive system ("engine malfunction - reduced power"). the car was drivable, but extremely sluggish and slow to accelerate. BMW service center performed diagnostics to find that a high-pressure fuel pump (hpfp) had failed. They replaced it, which has since solved the problem. Updated 09/29/09.

- Kennesaw, GA, USA