2008 BMW 335I: misfire or rough idle

Filed Dec 18, 2021 · Engine, Fuel system · GA

I am experiencing a know issue others have complained about related to the high pressure fuel injector failure in my vehicle. There have been previous recalls for this and my vehicle should fall within the recall dates and is showing all of the symptoms of this failure yet is it some how not part of the recall. What is happening is on cold starts or even idle the car is shaking and has a very apparent misfire, I have checked the spark plugs and they indeed have fuel on them. The injectors are causing excessive fuel in the cylinder this leads to a host of problems that are potentially, catastrophic like the engine seizing while driving due to oil dilution from the fuel

Filed Jul 20, 2020 · Engine, Fuel system · 89,000 miles · CA

I was told by my mechanic my fuel injectors have gone bad and I believe this is from a manufacturer's issue. Please investigate as I know various people that have the same issue with the same engine, year and make. I took it to the shop after I turned it on to drive and the vehicle was shaking a bit more than normal, when I accelerated the car was very vaguely responding to me. This is why my vehicle began to misfire, because of the fuel injectors. I will keep all receipts until further notice of this issue.

Filed Dec 19, 2019 · Airbags, Engine · 152,227 miles · CA

High pressure fuel pump failure could be the low pressure fuel pump not so sure got codes p3090 confirmed and p142e pending. The car was in motion when doing a turn the vehicle started to bog out and roughly idle I immediately turned to the right and shut the vehicle off tried to start it about three times in one minute intervals car would bog out and shut off threw me those two codes and a check engine light.

Filed Aug 4, 2017 · Fuel system · 69,000 miles · WA

My car began to run roughly after a cold start as I was leaving my office. After a few seconds and feeling decreased power, I tried to pull off the road and into a parking spot in the parking garage at microsoft's head quarters (where I work). The vehicle stalled out. I was able to restart the vehicle and get into a parking space, but it continue to run roughly. I noticed an intense smell of gasoline and immediately turned off the engine. I exited the vehicle and checked the exhaust. It was blowing white smoke and had gasoline dripping out of the tail pipes, I let the vehicle cool down and restarted the engine with another person observing the tail pipe. It again was running very rough and had gasoline spraying out of the tail pipe. I immediately turned off the engine. The car was towed to a service center. They have diagnosed the issue is that 2 of the injectors are stuck in the fully open position. As a result, the car is unsafe (I was lucky there wasn't a massive fire). Previously, I'd had the hpfp (high pressure fuel pump) replaced under recall. I am concerned that the recalled/replaced hpfp may itself be defective and failed, causing 2 injectors to fail simultaneously (there's statistically no chance of two injectors failing simultaneously without some causal factor upstream in the fuel system). On contacting bmw (in bellevue wa) and bmw north america, they have refused to cover the repair or acknowledge the issue. I am continuing to engage with them on the repair, but believe this is a more serious safety issue. Had I not pulled off when I did, the vehicle could have went up in flames while on the highway.

Filed Nov 9, 2010 · Transmission · 26,000 miles · PA

Driving on a main arterial street, car began to run roughly, decelerate and then shut-off. This was yesterday, 11-8-2010. This also occurred on saturday 11-6-2010. Manufacturer's dealership now has the auto and has not determined what causes the problem.

Filed Jul 25, 2010 · Fuel system · 45,000 miles · NJ

High pressure fuel pump failure. Failure starts off with long starts, followed by rough idle followed by reduced power and failed pump. Had 4 pumps replaced.

Filed Jul 24, 2010 · Fuel system · 10,200 miles · MA

Another high pressure fuel pump failure in my 2008 bmw 335i. This time it happened without any warning, just after picking up my children at pre-school, I pulled out onto a busy street which is difficult to get a whole in traffic. Stepped on the gas to pull out and speed up quickly to the flow of traffic (45 MPH), the car starts to accelerate for about 2 seconds, then acts like I took my foot off the accelerator, goes into a limp mode, RPM drop to 4-500rpm and the car shakes and runs rough and will barely accelerate no matter how hard I push the gas pedal. The flow of traffic has to brake extremely hard to avoid rear ending me since there is no real shoulder or any time to even pull over, thank god I was not hit and everyone else in traffic managed to slow down quickly without incident - it would have been easy for this to have ended in a 40mph speed differential rear end collision with 2 small children in my car. I would like to feel confident that I can return my car for repair, but since this is the apparently repaired part already installed and that even the new repair part that will be put in my car has already failed many times according to the dealer, I feel that bmw is just putting me back in potentially the same dangerous position to happen again. My first fuel pump failed at 2000 miles, this one failed at 10000 miles, at this rate I will need 20 fuel pump replacements before the 100000 mile warranty runs out and potentially be in up to 20 accidents when this happens - please reopen this case and investigate bmw further before someone is seriously injured or killed!