BMW 135I loss of power problems

Filed Jan 6, 2019 · Fuel system · 56,900 miles · CA

Two times within a year the vehicle has experienced a reduction of power and the check engine light came on. On 4-3-18 I took the vehicle to the modesto bmw dealer and was advised I needed the fuel pump replaced which I did spending $1355. Late in december the same problem occurred and I again took it to the same dealer who now advised me I needed the "high pressure fuel pump " replaced to the tune of $1750. This car has 57,000 miles. I am aware there were recalls on the same vehicles in the years preceding 2011 and wonder if the problem continued without resolution. This is a safety problem as losing power at highway speeds is dangerous.

Filed Jul 11, 2018 · Engine, Transmission · 40,000 miles · OH

Vehicle exhibits an intermittent hesitation (like a stall) where there is an apparent total loss of power at low speeds (coasting) or from stopped. On several instances this has happened while in a left turn lane with oncoming traffic and creates a serious safety hazard. The vehicle more frequently, but not always surges in rmp without throttle input when coming to a stop. In many instances, the vehicle lurches forward and extra braking is required. This has resulted in near miss, rear end, assured clear distance issues. These two problems occur during city/residential driving including at slow speeds through school zones (a major concern). I purchased this car used, but with low mileage and encountered these issues on the day of delivery. Dealer reprogrammed an engine control module according to a bmw safety bulletin which I found online. The drive home was noticeably improved, however the conditions returned shortly there after and persist to this day.

Filed Oct 19, 2015 · Engine · 90,000 miles · NC

Tl* the contact owns a 2011 bmw 135i. While driving 60 MPH, the vehicle overheated and lost power. The vehicle was taken to a dealer where it was diagnosed that there was a water pump failure. The manufacturer was made aware of the issue. The failure mileage was 90,000.

Filed Jan 22, 2015 · Engine · 65,000 miles · GA

I have a well maintained 2009 bmw 135i with 65000 miles. Yesterday, 1/21/15, while traveling at 75mph in 6th gear in the left lane of ga400, the car abruptly and without any warning overheated and lost all power. The car had been driving 100% normal, oil temps were normal, and had been in for a recent oil change and inspection two weeks prior with no significant findings. Fortunately, I was able to coast across cross 4 lanes of high speed traffic to make it to the shoulder. When I called two different bmw service centers from the side of the road, they said they could not see the car until february 3rd (two weeks) and were backed up on loaners and rentals as well. I called braxton automotive ((404) 367-4767), an experienced repair shop, and they, from my brief over-the-phone description, instantly identified the issue as a water pump failure, a very common problem in this n54 engine. When they received the car, they confirmed a catastrophic water pump failure and a consequently cracked radiator. I called bmw USA the night of the incident and learned that there is no recall or service bulletin in place. They were apologetic but refused to look into the issue unless I brought my car to a dealer service center. This was unreasonable because of the time lag and because I had already towed the car to braxton, who had already identified and begun repair on the problem. I had swore off bmws when I had my high pressure fuel pump replaced 3 times in the first year of owning this 2009 car. Now I am going to sell this dangerous piece of crap. Too bad, I love the way it looks and drives, when its not in the shop or shutting down at high speeds.

Filed Apr 1, 2014 · Driver assistance, Engine · 28,000 miles · DC

When driving in traffic the bmw 135i dct transmission will stall when coming to a stop. This results in a loss of power steering. Sometimes before the car stalls, the engine will rev without driver input to 2500 RPM and drop the clutch which results in a rapid acceleration if your foot is not on the brake this can be extremely dangerous. I have almost crashed the car many times as a result of this. Bmw issued a technical service bulletin to dealers that can be found if you google the issue, but there is no known remedy. The car has been in and out of the dealer close to 10 times and they claim there is no issue. I believe the issue to be with software of the engine and transmission.

Filed Jan 13, 2011 · Fuel system · 7,500 miles · LA

Car lost power and had to be towed.

Filed Dec 13, 2010 · Fuel system · 3,000 miles · GA

2010 bmw 135i purchased late april...3000 miles when problem started...the car took longer than normal to start...while in traffic in downtown atlanta...experienced lose of power or stall...spitting and sputtering to a stop on the side of the road...called local dealer and they towed the car to the dealership and replaced the hpfp and re-flashed the computer...since then I have turbo-lag and strange noises coming from under the hood...the fuel pump replacement is fine, but the lower performance of the new program is unacceptable...I paid a lot of money for the performance and to dumb down the computer to keep from replacing other components is wrong...fix the problem for real and there would be no issue.

Filed Nov 1, 2010 · Electrical, Fuel system · 2,000 miles · IL

Tl*the contact owns a 2008 bmw 135i. While driving approximately 50 MPH, the engine loss power with the illumination of the warning indicator. The vehicle restarted in the low power mode. The vehicle was taken to an authorized dealer for diagnosis. The computer software was updated and replacement of the fuel pump. The vehicle exhibited poor acceleration performance after the repair. The vehicle was taken back to the dealer and they informed that the vehicle experienced a turbo lag which was associated with the newly installed fuel pump. The failure continued to occur. The failure mileage was 2,000. Updated 01/13/11 *bf updated 01/24/11

Filed Sep 21, 2010 · Fuel system · 11,100 miles · WV

I own a 2009 bmw 135i with the n54 twin turbo engine. One day I was driving down the interstate at 70mph when suddenly the car lost all power and suddenly decelerated. A warning lamp on the dash came on indicating the car was only operating at half engine power. The car was running very roughly and shook and shuddered violently when I pressed on the accelerator....I was unable to maintain a vehicle speed above 50mph. I finally had to pull off the road and let traffic pass. When I put the car in park it was still shaking and heaving. I reported this immediately to the bmw service department where I purchased my vehicle. While I was told it was due to the high pressure fuel pump, I was told that bmw was unable to offer any resolution at this time. Since then, this has happened three times, each time in heavy rush hour traffic. I feel that this is extremely unsafe and is likely going to result in a serious accident. Bmw is aware of this problem and yet seems to be unable to solve the problem. Many other owners of the 135i, 335i and 535i have reported similar instances. Will you please encourage bmw to recall these unsafe vehicles before somebody is hurt or killed?

Filed Sep 3, 2010 · Fuel system · 24,000 miles · CA

Vehicle is a bmw 135i, model year 2008, convertible. Car suffers sudden and complete loss of power at high speed and often during high-traffic, rush- hour speeds on moderate incline sometimes with minimal safe shoulder and median. This the 6th incident over the last year and a half. Bmw of san diego replaced fuel pressure sensor and multiple high-pressure fuel pumps. We have barely avoided multiple accidents. We are scared to drive our car.