Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2016 Audi Q5 owners, lightly cleaned up (personal details are redacted by NHTSA).
Component: 2016 Audi Q5 Available for inspection : UNKNOWN Safety risk: YES The car was just driven and parked in the garage, approximately 30 minutes prior to our discovery of the fire. My wife and I had to escape the fire. UNKNOWN YES The Town of Sterling, MA fire department investigated the fire and determined that the vehicle caused the fire (See attached report). Then, AMICA Insurance Company had [redacted] from NEFCO do an investigation. He verbally told us that he thought it was the car that started the fire, but he was told by the insurance company attorney to not make a written report (See attached email). AMICA had the vehicle brought to SD Lyons Facility in Seekonk, MA to investigate the vehicle's charred remains. Audi's representatives were also present. No physical evidence was found to prove that the car caused the fire. …
The contact owns a 2016 Audi Q5. The contact stated while driving approximately 35 MPH, there was an abnormal burning odor inside the cabin of the vehicle. The contact checked the oil and coolant levels and became aware that the coolant level was very low. There was no warning light illuminated. The contact stated that after filling the coolant reservoir the odor went away. The contact stated that the odor returned, and the coolant level was very low. The contact had not taken the vehicle to a local dealer or independent mechanic to be diagnosed or repaired. The manufacturer had been informed of the failure. The contact researched online and related the failure to NHTSA Campaign Number: 17V002000 (Engine and Engine Cooling) however, the VIN was not included. The failure mileage was approximately 100,000.
The contact owns a 2016 Audi Q5. The contact stated that while driving at various speeds, the oil pressure warning light flashed on the instrument panel. The contact had taken the vehicle to an independent mechanic on several occasions and unknown repairs were performed; however, after each repair, the failure persisted. The contact took the vehicle to a dealer where a diagnostic test was performed; however, the cause of the failure could not be determined. The contact attempted to reach the manufacturer but had no success. Upon investigation, the contact linked the failure to NHTSA Campaign Number: 18V229000 (Engine and Engine Cooler). The vehicle was not repaired. The failure mileage was approximately 119,000.
The contact owns a 2016 Audi Q5. The contact stated while driving at various speeds, an abnormal rattling sound was coming from the vehicle with the check engine warning light illuminated. The vehicle was taken to a dealer and the contact was informed that the coolant pump and serpentine belt needed to be replaced. The contact was informed that the vehicle was not included in NHTSA Campaign Number: 18V229000 (Engine and Engine Cooling) and that the repair would be an out of pocket expense. The manufacturer was notified of the failure and confirmed that the Vin was not included in the recall. The vehicle was not repaired. The failure mileage was approximately 74,000.
The contact owns a 2016 Audi Q5. The contact stated that on several occasions while the vehicle was started, there was a loud whistling sound coming from the engine compartment. The vehicle was taken to a dealer where it was diagnosed and determined that the breather valve needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 40,900.
I am reporting a defect related to carbon buildup in the Secondary Air Injection (SAI) system on my 2016 Audi Q5 3.0L Supercharged (engine code CTUC). My vehicle has been diagnosed by an Audi dealer with DTC P0491 - Secondary Air Injection System Insufficient Flow, and restricted secondary air flow has been confirmed through Audi-authorized diagnostics. This failure mode is described in TSB 2014569 and TSB 2014665/4. I discovered this when the check engine light illuminated and I sought a diagnostic from the dealer which cost me $249. Audi has acknowledged this condition as a defect in other vehicles by issuing Warranty Extension U19 (10 years / 120,000 miles), which covers carbon buildup in the secondary air injection ports. However, Audi denied U19 coverage for my vehicle solely because my VIN is not included in the warranty extension population. …
Purchased a 2016 Audi Q5 Premium Plus in June of 2022, I only had it for about a month and the light came on asking me to put a quart of oil in it. After adding oil the light went off, Well it has done it two more times since the first time. While having the car serviced in August I asked the service associate why does it do that, I was told that that's just what they do. That made no sense me, So I did a little investigation and found out there was a class action lawsuit filed because of this issue. I didn't own the car at that time, Audi should continue to service these vehicles that might have slipped through the cracks and wasn't repaired during this lawsuit. There are many people just like me who are purchasing these cars, without knowing about this issue and has the vehicle been repaired or not. …
continually having to add a quart of oil to the vehicle and rear tail pipes have turned soot black from oil burning out the tailpipe. I purchased the vehicle and i was having to have the oil changed a lot. then i noticed that the oil light was on every 500-1000 miles and i was constantly having the oil changed. i researched and the oil should not be changed that often. i took to dealership twice to no avail. i took it back with the same issue. they kept the vehicle almost three months and told me that motor would have to be torn down and if warranty didnt pay i would have to pay over 15,000.00 for a new engine. i dont have that kind of money for an engine and engines should last over 100,000 miles. …
On [redacted] at around 8:55-8:59 I finalized the paperwork for a purchase of a car, received the keys, drove out of the dealership and by 9:02 the check engine light came on and the car shook. On [redacted] at around 2:22 pm, as I was driving, the car shook, pulled up to red light and the car would not move. It shook, rattled and died. The EPC light came on. I owed the car back to the dealership. I noticed that parts of the car next to the muffler and the tailpipe were belong held together with making tape. I received a call from the dealership from Tony. He said the car was fixed by the owner. No clear verification that the dealership owner is as trained or licensed mechanic.
Engine shuts off while driving at highway speeds. No engine warning light comes on, just complete lack of power. Need to pull off, put car in park and restart. Happens more often in colder weather, but is very sporadic. Audi said it was fuel issue. It is not. Jundreds of gas fill-ups with all different brands. This has been happening for years, and began within months of purchasing the car. It is getting more and more frequent. There is no fault code associated with it when I've brought it in for diagnostics. Very disconcerting when driving 75mph in left lane,and you experience a complete loss of power. Last incident was August 12, 2023
Related recalls
Engine and engine cooling › Cooling system
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2017 Audi A5 Cabriolet, A5 Sedan and Audi Q5 vehicles, 2012-2015 Audi A6 vehicles and 2013-2016 Audi A4 Sedan and A4 allroad vehicles.
Remedy: Audi will notify owners, and dealers will replace the pumps, free of charge. The recall began September 14, 2018. Owners may contact Audi customer service at 1-800-253-2834. Audi's number's for this recall is 19N3/19N4.
Engine and engine cooling › Cooling system
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2017 Audi A5, A5 Cabriolet and Q5 vehicles, 2013-2016 Audi Allroad and Audi A4 vehicles and 2012-2015 Audi A6 vehicles.
Remedy: Audi will notify owners, and dealers will update the software so that the power supply to the coolant pump is deactivated if the pump becomes blocked with debris, free of charge.
Engine complaints in other Q5 years
Frequently asked questions
How common are engine problems on the 2016 Audi Q5?
NHTSA has 33 complaints about the engine & cooling of the 2016 Audi Q5, 42% of the model year's 78 complaints. The component named most often is cooling system (3 mentions).
Is there a recall for 2016 Audi Q5 engine problems?
Yes — NHTSA recall 18V-229 (cooling system, Apr 11, 2018); NHTSA recall 17V-002 (cooling system, Jan 3, 2017). Recall repairs are free at authorized dealers.
At what mileage do 2016 Audi Q5 engine problems start?
Half of the complaints with a recorded mileage happened before about 43,000 miles, and 20% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 1 fire and 0 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.