After having made several replacements to parts (e.g. all three fuel pumps) to this vehicle over three, the vehicle now requires a new engine due to the failure of a rod ring. The root cause for this failure remains unidentified, however BMW is refusing to identify and/or accept accountability to address this failure which requires an engine replacement (>$13000). Any vehicle of this age (~7 years old) and mileage (~80,000 mi.) should not require an engine replacement. Fortunately this issue occurred while traveling on urban roads at speeds less that 50 mph. Had this occurred at highway speeds, this failure could have been catastrophic for me, my loved ones and others. Additionally each failure (e.g. of fuel pumps and rod ring) has caused me to increasingly question the safety resulting from BMW's vehicles using these components. At this point in the absence of a remedy from BMW I am left with no choice by to file this complaint as I have tried everything possible with BMW.

- Oviedo, FL, USA

"takata recall" I have a 2013 BMW 550I xdrive M sport. It keeps on misfiring on cylinder number two and I have changed all 8 spark plugs and the injector for that cylinder. I also used octane booster and sea foam to clean the carbon out the fuel system. I don't know what else it could be if it's still misfiring on that cylinder. It starts up good and sometimes it starts up kind of hesitant. When I come to a complete stop after really going fast it starts to shake as I am stopped and when I go to take off it lurches sometimes. I have only had mechanics work on my car and can't find any other explanation as to why it's not functioning right.

- Fayetteville, NC, USA

While drive below 30 mph, the front driveshaft broke and ruptured a hole in the engine's upper oil pan. The flexible joint or universal joint seized and broke the front part of the front driveshaft. Then the vehicle had metal in the engine oil and that has damaged the engine and the turbochargers. The vehicle is going to need a new engine, new turbochargers, and a new front driveshaft. The repair estimates are: New engine - $3800 turbo chargers - $1100 front driveshaft - $1500 auxiliaries parts - $1200 labor/repair cost - $7000 total cost - $14,600

- Dunlap, IL, USA

I would be driving the vehicle and at a random time it would jerk violently and then slow while in traffic on the freeway. The car would go into 'limp mode" and give a 'drivetrain malfunction' error. I researched this error online and it seemed it could be any number of things. The first couple times it happened it went away upon the car being off. It happened a couple more times before the 'check engine' light came on with the 'drivetrain malfunction' error on the car's info center. Each time it involved a violent jerking of the car and immediate slowing down of the car in traffic. I drove it to nelson's automotive center in pewaukee, wi after a few times of this happening. They diagnosed this as a fuel pump failure and replaced the fuel pump. Based on my research this has been an ongoing issue for BMW for years. Fuel pumps have been recalled on these cars up to the year of my car which is disappointing.

- Menomonee Falls, WI, USA

High pressure fuel pump the car started shaking while driving lost power car went into limp mode and kept shaking. The car would not exceed 10 mph and created a safety issue

- Yuba City, CA, USA

The complaint is not a safety issue. It's a quality issue. BMW's N63 engine is evidently not well engineered. They have a "customer care package"' in place for those customers that complain to the service dept about their engines not running right. BMW is very careful to make sure customers do not view the repair as a recall. That said the amount of work required is extensive (takes more than 1 week to complete). From what I've read online the fix they have in place does not always work. I asked to be let out of my lease and put into a different vehicle with no penalty and was refused any accommodations. I'm writing because you should be aware of this engine issue (google N63 issues) encourage BMW to recall the cars and allow their customers to swap out vehicles if they choose to do so.

- Chesapeake, VA, USA