Audi A3 jerking problems

Filed Mar 23, 2026 · Transmission · GA

On March 22, 2026, my Check Engine light came on while driving my 2022 Audi A3. Prior to this, I had been noticing a slight jerk when accelerating from a stop. Because Audi dealerships charge approximately $250 just to read diagnostic codes, I went to Discount Auto Parts, where they retrieved code P27F500 — indicating the gear shift lock solenoid is stuck in the open position. I then contacted my Audi dealership and asked directly whether this required a software update or if the gear selector was physically failing. They refused to give me a straight answer. I separately spoke with an Audi service technician who confirmed that the 2022 Audi A3 is well known to have this exact issue. My own research confirmed that this defect is widespread across both Audi and Volkswagen vehicles sharing the same platform. My vehicle is only 3 years old with no history of abuse or neglect. Repair estimates for this known manufacturer defect range from $1,500 to $2,000, which is unacceptable for a defect that appears to be a manufacturing issue, not owner caused damage. I am requesting that the federal safety agency investigate this as a potential safety defect and consider requiring Audi to issue a recall or provide repairs at no cost to affected owners.

Filed Jan 16, 2026 · Fuel system · 65,000 miles · GA

The contact owns a 2015 Audi A3. The contact stated that on several occasions, while adding fuel to the vehicle, there was a clicking sound before the fuel started spilling onto the ground from the filler neck. The vehicle was not diagnosed or repaired; however, the dealer stated that the failure might be associated with a breather issue within the fuel tank and that the breather part might need to be replaced. The vehicle was not repaired. The contact stated that on several occasions while driving at undisclosed speeds, the vehicle suddenly jerked, lost power, and a rattling sound came from the engine compartment. The vehicle was not diagnosed or repaired. Additionally, there was a leak underneath the driver’s side rear wheel and a trail of condensation coming from the fuel tank, extending outside of the vehicle on the floor of the garage. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 65,000.

Filed Dec 9, 2025 · Transmission · 34,500 miles · CA

The contact owns a 2019 Audi A3. The contact stated that while driving 65 MPH for a 50-mile trip, the message "Transmission Failure" displayed, and the check engine warning light illuminated. The transmission then inadvertently switched from automatic to manual transmission mode and became stuck in second gear. Additionally, the vehicle jerked and decelerated to 35 MPH while driving. The contact activated the hazard lights before pulling over to the right shoulder to turn off the vehicle. The vehicle was restarted, but the failure persisted. The contact stated that the vehicle was consuming an excessive amount of fuel very quickly. The contact was able to drive to the destination. The vehicle was taken to an independent mechanic, who retrieved DTC: P173500 (Electrical Malfunction with the Position Sensor for Clutch 1 in the Transmission). The vehicle was then taken to the dealer, but no cause for the failure was found. The contact then drove the vehicle for a long distance at high speeds and was able to duplicate the failure. The vehicle was taken back to the dealer, who determined that the mechatronic hardware, DSG transmission cover, gasket, and fluid needed to be replaced. The vehicle was not repaired. The contact related the failure to Technical Service Bulletin: 2058504/1 (Transmission malfunction, DTC P173500 and/or P173600 stored in the TCM). The manufacturer was made aware of the failure, but informed the contact that the VIN was not included in the Technical Service Bulletin. The failure mileage was approximately 34,500.

Filed Feb 19, 2025 · Transmission · GA

The **mechatronic unit** (integrated into the S-Tronic dual-clutch transmission) is the primary component that fails. This unit controls gear shifts, clutch engagement, and hydraulic pressure within the transmission. Common failure points include: - Internal electronic control module (ECU) faults. - Malfunctioning solenoids or pressure valves. - Software glitches or calibration errors. **2. Safety Risks** Mechatronic failure poses significant safety risks: - **Erratic Gear Shifts**: Sudden jerks, delayed engagement, or refusal to shift gears could lead to loss of vehicle control, especially in traffic or during overtaking . - **Limp Mode**: The transmission may default to a single gear (e.g., 3rd gear), severely limiting acceleration and braking responsiveness . - **Complete Gear Loss**: Loss of reverse or multiple forward gears increases collision risks during parking or low-speed maneuvers . --- **3. Confirmation by Dealers/Service Centers** Dealers and independent specialists can reproduce and confirm the issue through: - **Diagnostic Scans**: Fault codes like "implausible gear ratio," "valve electrical faults," or "clutch adaptation limits" often indicate mechatronic failure . - **Physical Testing**: Symptoms such as harsh shifting, RPM fluctuations, or transmission warnings (e.g., flashing PRNDS lights) are observable during test drives . - Audi has issued **Technical Service Bulletins (TSBs)** for related transmission issues, though the 2016 A3 e-tron’s mechatronic unit isn’t part of a formal recall.

Filed Apr 9, 2024 · Engine, Fuel system · LA

What component or system failed or malfunctioned, and is it available for inspection upon request? Power Train system failed also engine light is now on How was your safety or the safety of others put at risk? Me and my toddler were in the vehicle when it started to jerk in bad traffic. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the mechanic said this is a serious problem and i should be concerned. He stated i should not drive my vehicle. It was inspected by a certified mechanic. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No, everything happen at one time.

Filed Nov 13, 2023 · Transmission · TN

Transmission module! Started jerking when switching gears, to not switching gears at all and this happened while driving so I was on the road stalled with no gear changes! Car is inoperable, due to this and it’s still being paid for yet not able to be driven from practically the day I bought it! The manufacturer knows this is an issue and we are still out here in unsafe non gear changing cars! Very dangerous

Filed Jan 17, 2023 · Acceleration, Electrical · TX

While driving on highway 59 my vehicle began to jerk. I tried to accelerate and the vehicle would ramp but not move fast. My check engine light came on as well as the error code “transmission malfunction you continue to drive until engine is off.” After getting out of Houston, Texas rush hour traffic, I had my vehicle towed to a mechanic. The mechanic ran several tests and checked the engine. Upon diagnosing the vehicle, the scan tools gave a myriad of fault code relating to electrical valve faults. All of which clear when driving the vehicle again. The mechanic informed me the transmission was not the issue but the mechatronic system had failed due to a faulty part. The mechanic said the issue could be repaired but would likely occur again as Audi as a history of faulty mechatronic systems. The mechanic called an Audi dealership who stated Audi’s mechatronic control unite has not yet resolved the root cause failure at factory level, meaning all replacements and repair kit components still have the underlying defects that will cause malfunction, usually outside the short one-year manufacturer warranty. I believe Audi manufacturer knows their cars still have a defective part hence why an extended warranty on the mechatronic system is offered. Also, Audi vehicles made in 2016 were recalled due to a defective mechatronic system. My vehicle was made in early 2017. I called the Audi dealership to make them aware of the safety and they ignored me, and tried to sell me another vehicle. This is my second safety issue with Audi vehicles, the first being an expulsion safety issue. There is no way I am purchasing another Audi.

Filed May 13, 2022 · Transmission · MD

Car stalled in fast moving traffic, and then lurched forward. In the stall the car behind me almost ran into me. In the lurch, I almost rear ended someone. Fortunate that both times there was no collision. Took the vehicle to Audi and the car has been diagnosed with failed mechatronic - a $4,000 repair. It was shared that this is a known issue with Audi for my model year (faulty mechatronic), and as such has been recalled in several countries, but not the US. I called Audi USA and was informed that yes it is a known issue and has been recalled in other countries, but that the federal safety agency has not required Audi USA to open a recall here, and so they can't help me. I'm asking for some assistance. Thank you very much

Filed Dec 20, 2019 · Engine, Fuel system · NJ

When driving off after starting the vehicle, the car starts jerking and 'knocking' and stalls/turns off. This happens almost everyday as I reverse out of my drive way and drive forward. Extremely unsafe! Does not show check engine light or any other lights.

Filed Aug 17, 2019 · Transmission · 61,200 miles · CA

Transmission goes into neutral while at highway speeds. Engine rpms jump to redline while car is in neutral, then goes back into gear. Has happen several times while on the highway. Transmission also kicks down to lowest gear when coming at stop, jerking the car while braking.