2025 Audi Q5 Engine Problems

The vehicle experienced a sudden and severe loss of engine power (limp mode) while driving, accompanied by a “POWER LIMIT” warning in the instrument cluster. Separately, the Advanced Driver Assistance Systems (ADAS) malfunctioned, including Emergency Assist / Medical Alert Assist (which autonomously pulled the vehicle over on two occasions) and Traffic Sign Recognition. The vehicle is available for inspection upon request. While accelerating at approximately 35 mph, the vehicle suddenly lost nearly all power and would only move at about 2 mph, creating an immediate hazard in traffic. On two separate occasions, the Emergency Assist / Medical Alert system pulled the car over without driver input. Traffic Sign Recognition also malfunctioned. These events nearly caused three accidents and have made the primary driver afraid to operate the vehicle due to the unpredictable loss of power and autonomous system interventions. The issues have been reported to the Audi dealer. We are awaiting formal confirmation and documentation of the findings. No police or insurance inspection has occurred at this time.” or “No formal manufacturer, police, or insurance inspection has been completed beyond dealer service visits. The instrument cluster displayed a “POWER LIMIT” warning during the power-loss event. Multiple ADAS warnings and system unavailability messages (including Emergency Assist and Traffic Sign Recognition) have appeared. The power-loss event occurred while driving at approximately 35 mph. The Emergency Assist pull-over events and traffic-sign malfunctions have occurred on multiple occasions since the vehicle was purchased in December 2025 (current mileage approximately 17,105).

NHTSA ID

11776548

Incident

Nov 6, 2026

May 30, 2026 - Latching part of rear door lock broken. Had 3 grandchildren in the car at the time. Door would not latch. October 15, 2026 - Park gear would not work properly. Put in park and car would still roll. Hill-hold function also not working. March 24, April 8, August 7 - Front console lights up with warning lights for no reason. Dangerous as you don't know what is working and what is not. Forced us to have car out of commission for over 30 days since purchase on March 6, 2026

NHTSA ID

11771358

Incident

Oct 15, 2026

See attached document for complaint.

NHTSA ID

11746496

Incident

Mar 24, 2026

I purchased a new 2025 Audi Q5 Sportback on 4/13/2026. I brought my car home that day and then had to go to the hospital for surgery so didn't drive my car for two weeks. I get in my car after a couple of weeks and the engine light came on and didn't come off I took it into Audi on May 7th. Audi said I could pick up my car on Monday May 11th and said the car battery was charged and I should be good. I brought my car home and then didn't drive it again for a week. I got in my car again and the engine light came on again. I called Audi on the Thursday before Memorial day and was told I needed to bring this back in. I took it in on Tuesday, and was told this code is a known issue and Audi is putting a fix in place to update the modules. They provided me the attached from Audi. If this is a known issue, I feel this should have been provided to me about this before buying the car. I was also told to continue to drive the car and with the light on. How dangerous is that to drive a car with the engine light and ignore it. If something is seriously wrong, I won't know cause I am told to ignore. I would like to know how to return this car as a lemon has this was a known issue and they don't know when the fix will be in place. I am asking for assistance on how to proceed with Audi. I have read several reviews on line with others that have experienced the same issues over a year ago. Thank you !

NHTSA ID

11740396

Incident

May 7, 2026

Fault P003A00 (Turbocharger Boost Control Position Sensor). Vehicle suffered a catastrophic power failure (Limp Mode) on Day 2 of ownership. Total loss of acceleration while in traffic. Manufacturer admits it is a 'known software issue' with no current fix, creating an extreme collision risk for the driver." Vehicle is at dealership since Feb 4th, 2026

NHTSA ID

11721962

Incident

Feb 4, 2026

The air bag keeps showing it's not working and that's it's turned off, there's a driving system malfunction, and warning lamp flashing emissions-related fault malfunction are not working. It is a brand-new car and after 2 months, all the malfunction lights keep showing so we went to the Audi dealership and they said they have ordered the parts from Germany, but it has almost been 2 months, and they still don't know when it will arrive.

NHTSA ID

11720316

Incident

Dec 30, 2025

When attempting to accelerate rapidly (I.e. passing gear) the engine immediately begins to lose power. Audi dealer investigated and determined it was “TURBO LAG”. This situation happened multiple times at different speeds. When trying to accelerate to pass another vehicle or to merge onto a freeway are the scariest and most dangerous instances. Taking your foot off the accelerator does allow the engine to regain speed. The salesman that we had experienced this on a test ride with me. In reading previous turbo problems with Audi/ Volkswagen vehicles, I’m concerned that this may become a safety issue. This also occurred with the loaner vehicle they gave me which was the same year and model.

NHTSA ID

11708657

Incident

Dec 5, 2025

On December 22nd i got into the vehicle and a few errors popped up which consisted of “loose wheel warning malfunction” “brakes: limited functionality drive with causation” “active front assist and emergency assist unavailable”. I called the nearest dealer and was told it’s ok to drive it’s just a software glitch and if i don’t feel comfortable driving i should take it to the dealer and come back tomorrow for a loaner since service was closed already. So i proceeded to drive home, about 10 minutes into the drive a warning for the coolant came up so i pulled off into a parking lot and as i went to park another warning came up saying coolant too high turn off vehicle and as i was approaching the parking spot the car started to overheat and smoke. This is a BRAND new car with BARELY 1000 miles on it.

NHTSA ID

11706733

Incident

Dec 22, 2025