Fuel injectors constantly need replacement every 15,000 miles or so. All 6 were initially replaced on recall at 35,000 miles and then 3 more needed replacement 49,000 miles. Now the car has about 61,000 miles and needs another 3 replaced. This is obviously a problem with the design of the fuel injection system and needs to be recalled again or warrantied for an extended period of time. Safety issues are that when you try to accelerate the vehicle hesitates putting the occupants in an unsafe situation. Merging into traffic or turning onto a busy street can be really scary.

- Kent, WA, USA

My 335I 2008 has had three recalls all related to the fuel system. With 24,000 miles it now has issues with starting.I recently have taken it back to my dealer, left it for four days, picked it up with "cannot duplicate customer complaint". in less than a week the start up has gone from three to five un, un, un, un, uns to crank. The car is about to go out of warranty and I believe that BMW knows there are serious problems and is refusing to repair until they are able to get repairs income. I guess I should have cancelled my special order when two weeks before delivery they called and said my car had arrived in us but would not be released due to "engine compression problems". all other issues I have asked to be repaired are not with dealer noting "cannot duplicate customer complaint". an accident waiting to happen. I have called and emailed BMW and dealer no one responded. And let's not even get to the tires!

- Houston, TX, USA

I took the vehicle for the following symptoms: 1.) long(er) crank 2.) engine malfunction, reduced power 3.) service engine soon 4.) heavy, erratic shaking and shuddering 5.) engine sounded like a union pacific train with loud pumping sound 6.) because of 4 + 5, decide to turn-off the engine or sometimes it just stalls before 7.) after reset, the car becomes drivable but symptoms will reoccur. 8.) able to recreate problem when I mash the gas after doing some research on an auto forum, I suspected that the caused of the problem was a failing high pressure fuel pump. The dealership kept the car for 3 days to run some tests and concluded that the fuel pump was the problem. Since they replace the part, the car has not broken down again. However, they introduce another problems. 1) the car's exhaust noise is much louder now 2) the car is less fuel efficient, lower miles per gallon 3) the car now has a turbo lag which was previously non-existent. This means BMW is falsely advertising the 335I twin-turbo has zero lag. This was true before they updated the car's software but is not longer true at this moment in time.

- Dublin, CA, USA