This is a know fault problem that is directly tied to emissions of the deisel engine starting at 2008-2012 for all BMW deisel engines. Maybe even newer models. This so called scr temperature sensor that is located inside the def (urea) tank fails, which in term fails the smog inspection if it is not replaced. Some owners and dealers have replaced this tank/sensor ( which is one part together, cant buy separately) under emissions warenty. But most dealers will deny the fact this system is the primary system of emmission. And if it's not working how intended I'm sure emissions of this car won't meetc the federal or state requirment. Please look into this and get this fixed/ added to the emmission system failure list.

- Roseville, CA, USA

The contact owns a 2011 BMW 335I. The contact stated that the service engine warning lamp illuminated several times and the engine was riding extremely rough. The contact later received notification of NHTSA campaign id number: 14V176000 (engine and engine cooling), received the recall repair and within four months the failure recurred. The contact stated that the service engine warning lamp illuminated again and the engine was making a loud noise. The contact pulled the vehicle over and after several attempts it was able to restart which reset the computer. The contact later tried to start the vehicle and the key would not turn over. The vehicle was towed to the authorized dealer for further inspection and diagnosis. The recall remedy did not repair the vehicle. The manufacturer was notified of the failure. The approximate failure mileage was 20,000.

- Wellington, FL, USA

Driving down road and car loss power. Then stop car, took a well start car, the check engine light came on, make home. Later slow cranking car and losing power well driving. Next day engine light turn off. Then later engine light back on car runs with less power and slow cranking up. I only had my car 1 yr and BMW dealership says it my hpfp/injector it's not good everything start happening right after warranty end on car that was left from first person purchase. And I love my car but this not looking good..

- Stone Mountain, GA, USA

After starting the car, the center console gave an error message "engine malfunction. Engine operating at reduced output. Possible to continue. Drive with caution. Have the system checked by the nearest BMW center." The car could not go more than 2mpg and the entire car was shaking. I turned the car off and turned it back on and it did the same thing. I took it to the BMW center and I am waiting to get it back. They claim it had something to do with the fuel pump or the fuel injectors and the detection of ethanol in the gasoline.

- Orlando, FL, USA

Driving 40mph, smoothly at consistent speed, in middle lane of 3 lane road during morning rush hour. I had been driving for about 10-15 minutes after car had been in garage the night before. Attempted small acceleration, car did not respond, engine had turned off unclear if before or at time of attempted acceleration. Power steering was off. I put on my hazards, slowly drifted to stop, put car in park, attempted restart, first attempt failed, waited 15 seconds and second attempt successful. For next 3 hours, the engine had a rhythmic grinding sound which then stopped. Fuel tank had been filled the day before and was not near empty. Took to dealer, they have not been able to replicate event or find anything to fix.

- San Francisco, CA, USA

The contact owns a 2011 BMW 335I. The contact received a recall notice in June of 2014 for NHTSA campaign number: 14V176000 (engine). The dealer informed the contact that a letter from BMW was needed in order to have the vehicle repaired. The contact received a letter from BMW that stated the parts were not available. The vehicle was not repaired. The manufacturer was notified. The contact had not experienced a failure. Updated 10/23/2014 updated 4/7/2015

- Riverside, RI, USA

The contact owns a 2011 BMW 335I. The contact received a recall notification for NHTSA campaign number: 14V176000 (engine); however, the parts needed for the repair were unavailable. The dealer was unable to provide a specific date as to when the parts would become available. The manufacturer was notified. The contact had not experienced a failure. Updated 10/8/14 updated 10/10/14

- Bear , DE, USA

Upon driving at highway speed (70+mph) the car slowed down (engine braking) to approx 40mph instantly. The cars behind me were forced to brake forcefully. An accident was avoided because it was Sunday morning and light traffic. The car displayed "engine malfunction-drive to the dealership". the car was without power - just coasting at 40mph or so, not able to accelerate. I managed to get it over to the dealer - fields BMW of northfield, il. They kept it for a week - told me it was a computer malfunction that cut off power to the pressure converter for the turbocharger. When asked if this can happen again, they said possibly. I called BMW of North America customer service 1-800-831-1117 spoke to [xxx] extension [xxx]. I described the life threatening malfunction and I asked him to talk to the engineers and to get back to me on whether this can be avoided in the future. Next time we will be looking at a fatality for me or other drivers. I also asked him to extend the warranty to 100,000 miles due to the proven lack of safety and reliability. He never responded to my requests - I called today - 8/25 - he told me as far as BMW of North America is concerned - there is no issue with the vehicle. I believe that due to the possible future loss of life, this issue needs to be investigated. I am available for comments/contact. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Kewanee, IL, USA

The contact owns a 2011 BMW 335I. The contact received a notification of NHTSA campaign id number: 14V176000 (camshaft bolts/vanos) and stated that the part needed was unavailable to perform the repair. The dealer was unable to provide an expected date for the remedy part to become available. The manufacturer was not notified of the problem. The contact had not experienced a failure.

- Lake Wales, FL, USA

Defective swirl flap actuator. Dealer replace intake manifold with swirl flap motor.

- Beverly Hills, CA, USA

The engine randomly shuts down. This is accompanied by loss of power steering and reduced braking ability. This incident has occurred three times. The car has provided no warning or indicator lights. BMW service was made aware of this problem. Their response was that they failed to reproduce it. They also failed to correct the problem, the last incident occurred after a service on the car.

- Huntington Station, NY, USA