The contact owns a 2007 Audi A4. The contact stated that while driving at various speeds, the vehicle would not properly accelerate while depressing the accelerator pedal. Eventually, the vehicle stalled and would no longer operate as designed. During the failure, the check engine warning light was illuminated. The cause of the failure was not yet determined. The manufacturer and local dealer were not contacted. The failure mileage was 100,000.

- Whigham, GA, USA

My vehicle will disengage forward or drive at times (transmission) unknowingly and as you apply the gas it sometimes will engage and go forward or reverse in a high speed. Stopped at a light or stop sign becomes dangerous as you are not in control of your speed. Or you may be moved into traffic and lose forward or reverse power.

- Sarasota,, FL, USA

The transmission control module, a computerized part that could jam the transmission, is failing in my car, it's $3100 to fix including labor and material, but I feel it's a safety violation, especially considering the class action lawsuit covering 2002-2006 A-4 Audi stemming from the same defective part.

- Huntsville, AL, USA

Audi A4 transmissions have a faulty trasmission component, which causes them to fail. Repairs are costly, and are not a guaranteed permenant fix. Driving around in a vehicle (known to the manufacturer) with a transimission waiting to fail is not only extremely unsafe - it's just bad business. Please help institue a recall for all Audi vehichles with faulty cvts. A lawsuite settlement was announced in 2013, however, this only covers year models from 2002-2006. Clearly, the cvt transimission is still in production in Audi A4S till this day. I drive a 2007 Audi A4 with less than 100K miles and is less than 10 years old. My transimission went out on me while trying to reverse out of a driveway on to a highly populated city street, with a slight hill from oncomming traffic - I could of been slammed into from the rear.

- Oceanside, CA, USA

The contact owns a 2007 Audi A4. The contact stated that while driving at 40 mph, the vehicle jerked and the RPM gauge fluctuated rapidly. The contact mentioned that the vehicle failed to accelerate when the accelerator pedal was depressed. The contact stated that the failure occurred constantly. The vehicle was taken to the dealer on multiple occasions but the failure was not determined. The manufacturer was made aware of the failure. The failure mileage was 93,000.

- Santa Barbara, CA, USA

The crankshaft broke while driving on a highway at constant speed. The incident immediately disabled the car which could have been a major hazard had this not been a manual transmission as I was able to apply the clutch and coast to a safe location. Had it not been an automatic the car would have quickly coming to a stop in moderate traffic creating a significant hazard. Previous model years of this car have had a similar issue, but this year was not included this is a manual car, that still has it's original clutch and the car has met all manufacturers maintenance. All maintenance on the car has been performed by an dealer. Clearly this is a manufacturing or engineering defect that should be addressed by Audi.

- Chicago, IL, USA

High pressure fuel pump failure resulting in damage to camshaft, cam follower and internal metal shavings from defect at 123,542 miles.

- Webster , NY, USA

On 6/10/2014, I drove my 2007 Audi A4 a few miles to a local business and parked. On attempting to restart the car I found that the ignition key spun in the ignition cylinder assembly. It took approximately two minutes of spinning and light pushing for key the mechanism to reengaged, and the car to restart. During the time the key was spinning it was fully engaged with the lock, but spun in-place with the engine not starting. Took car to certified Audi dealer on 6/16 for diagnosis and the recommendation to replace the ignition cylinder assembly. Contacted Audi of America on 6/30 regarding safety incident. June-14 08:15:41 pm.

- Erie, CO, USA

Purchased the vehicle from mckenna Audi in norwalk with 25,302 miles and oem warranty. The first issue was an unusual vibration from the engine at 29,761 mi. Audi of mission viejo claimed there was nothing wrong. At 36,120 mi, the transmission failed and was replaced. At 41,940mi, ignition coils were replaced after complaining of vibration/shuttering/hesitation. At 46,163mi, complained of shuttering/hesitation. Hose seals & timing belt roller were replaced. At 46,934mi, complained of same issues, Audi of mv claimed there was nothing wrong. At 48,552mi, complained of burning smell coming from engine, rough idle and vibration. Cam plug and injector were replaced. At 52,811mi, the entire engine was rocking back and forth (have video). Circle Audi of long beach replaced crank case & breather valve. Engine vibration/hesitation/shuttering continued after this repair. At 55,600mi, the vehicle suddenly without warning attempted to change into a lower gear (or park) while driving at 70 mph on freeway. This major mechanical failure could have led to injury or death. Vehicle was inoperable and towed to rusnak Audi of westlake village, ca. The transmission was replaced for a second time, after less than 20,000mi. At 56,000mi, the car is now vibrating, shuttering, hesitating again (only 1,000mi on "new" transmission). It is displaying all of the same issues that led up to the major mechanical failure on the freeway. Audi of mission viejo claims it is due to a leaking/cracked motor mount and improper transmission calibration. As you can see, the same issues have been occurring since time of purchase, and despite minor repairs, the transmission always fails. I believe the vehicle is irreparably flawed and unsafe. Audi of mv has also been neglected. Audi of America (corporate) has been contacted. My request for a buyback due to the dangerous nature of this vehicle has been denied.

- Laguna Hills, CA, USA