fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
9,150 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2012 BMW 135 drivetrain problems

drivetrain problem

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2012 BMW 135 Owner Comments

problem #4

May 012013


  • 6,000 miles


Vehicle equipped with 7 speed dct transmission. When car had almost come to a stop there was sudden burst of engine speed (to about 2500 RPM) causing car to shoot forward. Accident avoided by jamming on the brake. This then happened several more times. Dealer re-programmed ECM and problem has not gone away. Occurs intermittently. Most recent episode in my own garage where barely avoided driving into front wall when it surged. Dealer again re-set software. Clear from dealers reaction that this is not isolated incident and clear that they don't have a real solution. This is basically a variant of unintended acceleration and an accident waiting to happen.

- Bonita Springs, FL, USA

problem #3

Jun 302013


  • 28,000 miles
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.

- Washington, DC, USA

problem #2

Mar 242012

135 6-cyl

  • 600 miles
From the time of ownership (March 16, 2012) to now, the vehicle shuts off during operation while in idle RPM speed. The vehicle is equipped with a six-speed manual transmission. Whether the clutch is fully pressed in and in-gear, or the vehicle is out-of-gear, there is a possibility for the idle rpms dropping and the engine shutting off. This mostly occurs while stopping for a red light, stopping for a stop sign, or in stop-and-go traffic on the highway. For example, the vehicle is approaching a stop sign at 25mph. The clutch is fully pressed in, the brakes are applied, and the gear shifter is changed from 3rd gear to 1st gear. While approaching a complete stop with the clutch still fully pressed in, the engine rpms will drop from normal idle speed (600-800rpm) to zero. Therefore the engine has shut off going 3-5mph, leaving the driver with no power steering and no power brakes. Sometimes this stall is violent; the vehicle shakes while rpms drop. Other times, the vehicle would stall without the driver even noticing. Also, this vehicle stalled twice while taking a turn at 15-20mph and the driver had to avoid an accident on both occasions because of this stalling issue. This critical safety problem occurred at a magnitude of once a month from March 2012 until July 2013. From July 2013 to September 2013, this stalling issue occurred three times a week. Then from September 2013 to now, the problem went back to once every month. This vehicle has been to the BMW dealership many times but because the problem is intermittent, the dealership could not replicate the issue; therefore applying no repair or solution to this critical problem. BMW North America was contacted after the shop foreman explained that the vehicle cannot be fixed. BMW North America did not help in any way, therefore lawyer-involvement is in effect to attempt in lemoning this dangerous vehicle.

- Orlando, FL, USA

problem #1

Apr 102012

135 6-cyl

  • 2,000 miles
Have taken the car five times for the same stalling, and lagging of the faulty dual clutch transmission. The car hesitates 3-5seconds no response to throttle input and then lunges violently forward. Car holds gear when pulling away from lights and then surges when parking the car almost causing me to hit cars parked next to me. Software has been updated on the car four times and the issue is still there. Was told that the mass airflow sensor was also faulty in the car and that might be causing the issue of surging and fluctuating idle. Mass airflow sensor was replaced and transmission issues as well as idling issues are still present. Take the car in for squeaky brakes and was told that the sound was normal, week later car is shaking violently when slowing down on the highway. Upon inspection the front brake rotors are warped and all this has occurred on a brand new car with 12K miles and less then a year of ownership. Car is also plagued by electrical gremlins that keep firing off the TPMS sensor warning lights that stay on after a reset and verification the tire pressure is as stipulated by manufacturer in the door jam.

- Miami, FL, USA

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