I own a 2016 Audi A6 3.0T. After filling the fuel tank completely, the vehicle only traveled approximately 190–200 miles before the fuel gauge indicated empty. This represents a sudden and significant loss of fuel range compared to normal operation. There are no warning lights, check engine lights, fuel smells, visible leaks, rough idle, or abnormal noises. The vehicle operates normally otherwise. The issue appears to involve excessive fuel consumption or incorrect fuel management without any driver warning. This condition poses a potential safety risk because the vehicle may unexpectedly run out of fuel while driving, which could result in loss of power in traffic or on highways, increasing the risk of an accident. The issue has been observed repeatedly after refueling. At the time of this report, the vehicle has not yet been inspected by a dealer or independent repair facility, but diagnostic evaluation is planned. Based on owner research and symptoms, the issue may be related to a fuel system, engine management, or emissions-related component malfunction that does not trigger a warning indicator. No prior warning messages or lamps were displayed before or during the occurrence.
2016 Audi A6: check engine light
7 of the 51 complaints about the 2016 Audi A6 describe check engine light.
- owner complaints
- 7
- of this car's complaints
- 14%
- recalls
- 0
Check engine light by model year
What owners say
I took the vehicle into a repair shop because the check engine light is on. I was advised that the water pump is leaking and it needs to be replaced along with the thermostat. The turbo charger assembly also needs to be replaced. Both of these items appear to be deficient and were listed under recent recalls on similar Audi vehicles and this VIN was not included in either recall. However, it appears to be a similar concern and should be resolved by the Manufacturer.
The contact owns a 2016 Audi A6. The contact stated that while refueling, the gas nozzle would frequently stop, causing gasoline to leak from the vehicle. The vehicle was taken to a dealer where it was discovered that the fuel tank sensor needed to be moved to another location on the vehicle. The contact was provided an estimate for the repair; however, the contact declined to seek a second opinion. The contact was assured by the dealer that the vehicle was safe to be driven. A few days after leaving the dealer, the vehicle stalled while driving at a slow speed, with the check engine warning light illuminated. Due to the failure, the vehicle was towed back to the dealer who discovered that fuel had filled up in the evaporation canister sensor which caused the fuel tank and the fuel pump to become defective. The manufacturer was notified of the failure but informed him that his vehicle was not under recall or warranty. The vehicle had yet to be repaired and remained in the possession of the dealer. The failure mileage was approximately 48,000.
Water pump and engine thermostat malfunction, check engine light is on.
The contact owns a 2016 Audi A6. The contact stated that after starting the vehicle, the check engine warning light remained illuminated continuously. The vehicle was taken to an independent mechanic where it was diagnosed that the vehicle was overheating and the thermostat needed to be replaced. The dealer was not contacted. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 48,000.
Ok purchased the car october 2019, immediately noticed a burning smell, in the car. Took out to audi multiple times ask if there was a leak, before the warranty ran out. They said no, now a year later my check engine light has come on. One diagnostic done at jiffy lube read a code that says it is the computer auxiliary output. Took the car to audi to do a second diagnostic, they said its the thermostat, and coolant pump. My car is not ever heating and the heat and air work fine. How is it now that the car is not under warranty they notice the leak in the coolant pump, when I complained about the smell of burning water when I first purchased the car. There are no indications of a leak on my driveway. The dealership has quoted me 1683.00 though there is a recall on the same parts. A year ago when I purchased the car there were faulty issues with the computer. Audi did replace this under warranty, but a month ago the computer would not come on several different times. Called the dealership told them it was on and off they said to bring in if it continues. Soon after the check engine light comes on, and now all of a sudden its a leak in the coolant pump allegedly. I repeatedly asked them if the ca had a leak when I first bought it only because the engine was giving off the burnt smell. They waited until the car was out of warranty to agree with me. There is a recall to fix the coolant pumps on the audi but they are wanting to charge me to repair mine. Right now the vehicle shut off on me tonight and the epc light is on. Car will not start, nor would the engine receive the gas when trying to accelerate. Only been driving the vehicle for a year, I should not have major issues with it as of now.
Audi recalled 2012-2015 a6 cars with the 2.0l tfsi engine, along with other audi models, due to faulty coolant/water pump (the federal safety agency recall # 18v‑229 mfg recall #19n3/19n4). For the a6, the bracketing was for cars built from 4/4/2011 - 12/22/2014. The bracketing for other models impacted by the recalled varied from 2012-2017. My a6 2.0 was built in feb 2015, but was classified as a 2016 model. On 8/28/2019 my check engine light turned on. I took the car into my audi dealership for servicing. The technician stated that I had a defective coolant/water pump, and that the pump was about to burst and needed immediate replacement. I was aware of the recall, and asked if the pump on my car was similar to the pumps covered under the recall, which they confirmed the pump part number on my car matched the pump part number that was being recalled. However, since my car was classified as a 2016, it was not covered under the recall. It appears that the bracketing that was used to determine which cars should be covered under the recall was not broad enough for the a6 models, as it appears that the defective pumps were also used on some 2016 a6 models or cars built after 12/22/2014.
Service bulletins that may apply
- This bulletin provides information when the engine is not runing smoothly; all gas engines.
- This special notice is to inform dealers to return the parts listed and only order the successor parts...
- This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
- This bulletin provides informaiton when the engine is not running smoothly, misfiring.
- This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
- This bulletin provides information on the use of the Audi frequencly analysis app, and where the...
- This bulletin provides information regarding UV leak additive for finding oil leaks.
- This bulletin provides informatin when the engine does not run smoothly at idling speeds.
Related recalls
No recalls on record for this model year.
Questions about the 2016 Audi A6 check engine light
Is check engine light a common problem on the 2016 Audi A6?
7 of 51 owner complaints about the 2016 Audi A6 (14%) mention check engine light. The model year with the most reports is 2003.
Is there a recall or service bulletin for this on the 2016 Audi A6?
There are 0 recalls and 141 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2016 Audi A6
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