Audi Q7 warning lights comes on

Filed May 19, 2026 · Lights · ME

Parking light defective message on dash board. Looked at the light and all lights present. Talked to a dealer and the headlight assembly to replace is 6K plus. For a small yellow side light inside of headlight that is still on, but the message on dashboard says otherwise. Was told that it isn't outputting enough light power.

Filed Sep 9, 2025 · Engine, Fuel system · TN

My 2017 Audi Q7 Prestige 3.0T 6Cyl GAS CREC Supercharged has experienced repeated, serious failures involving the engine, powertrain, and fuel system. - At 72,000 miles, the vehicle developed coolant leaks under the supercharger, a failed water pump, and soaked drive belts. Repairs included multiple hoses, gaskets, and thermostat replacement. -Shortly after, repeated PCV/Oil system failures caused oil leaks, warning lights, and engine shaking. Repairs included PCV system, oil separator, valve cover gasket, breather pipes, and new spark plugs. - at 111,000 miles, the low-pressure fuel pump and relay failed, causing the vehicle to stall and lose all power while driving- a major safety risk. -Most recently, the engine developed a severe misfire in cylinder #4. Compression testing confirmed abnormally low compression (15 psi) due to a suspected cracked valve seat. The vehicle cannot be repaired without a complete engine replacement, quoted at ~$20,000. Safety Impact: - Vehicle has stalled suddenly in traffic due to fuel and engine failures, risking crash or injury. - Coolant and oil leaks present a potential fire hazard. - Loss of power and shaking while driving put my family and others at risk. Inspection/Confirmation: -All problems have been repeatedly confirmed and repaired by an independent Audi specialty service center (S&S Auto Repair). - Numerous invoices document coolant, oil, fuel, and engine failures. Warning Signs: - Multiple dashboard warning lights appeared either right before or during failure, including engine malfunction, coolant loss, and auto start/stop malfunction. These repeated failures at relatively low mileage suggest a design/manufacturing defect with the Audi 3.0T engine platform that compromises both safety and reliability. The issue seems to be widespread amongst other Audi owners with the same 3.0T engine- Per AudiWorld Forums.

Filed Jun 19, 2025 · Lights · ID

A warning light is showing on the dash about the right side light not working. On inspection all lights are illuminated. Reportedly there has been a recall on some VIN’s for this problem but not ours. On line discussion groups report that the problem is more wide-spread in this model than with the limited VIN’s covered. Since the cost of a dealer replacing the lighting assembly is around $5000, we would like to have our vehicle covered as well.

Filed Feb 22, 2025 · Lights · PA

My car start showing me error "Side marker light defective" but all the lights seems to work properly, none of them is off.

Filed Dec 13, 2024 · Lights · GA

Light comes on dash when you cut in lights only that says Front side marker light defective All lights work can’t sell or trade with out repairs that dealer wonts $8000 for a car that’s not worth that was a old recall for this problem still exist Please help

Filed Sep 2, 2024 · Lights · NM

Front left side marker light malfunction warning came on. All lights seem to be working but warning light is still on . All forums online indicate a common issue with no resolution other than disabling the safety feature which is not a good option. Seems to be a prevalent issue with the q7 and should warrant a recall

Filed Apr 4, 2024 · Lights · CA

A repeating fault saying "Front right side marker light defective. See owner's manual" keeps popping up in the primary display with an accompanying bell sounding. The Long Beach Audi dealership said all lights were working correctly and failed to fully diagnose the problem in the five days the car was in their shop. This repeating nuisance fault is annoying and distracting to the point of being a safety hazard and should be fixed by Audi.

Filed Jan 3, 2024 · Electrical · CA

Our 2020 Audi Q7 (50,100 miles) suffered a catastrophic electrical failure while traveling on the freeway at 65+MPH. Suddenly the engine warning light went on, and then seconds later the entire interior lit up like a Christmas tree before it succumbed to a complete and catastrophic electrical failure. EVERYTHING failed – the car had zero power. No acceleration, brakes, steering, SOS, hazards / turn signals, brake lights, airbags, door locks, etc. My wife and child sat there in a steel box traveling at a high rate of speed while obstacles navigated around them; had they been hit, the air bags would not have deployed. This car nearly cost me my family. Audi replaced the alternator and the battery, and denied my buy-back claim because the incident hasn’t happened multiple times, and therefore doesn’t qualify for the lemon law. We continue to experience problems with the car – most recently: acceleration hesitation and recent warning lights saying 1. camera sensor failure (only to have them start working again), 2. tire pressure warnings (despite all the tire pressures being normal), and 3. warnings notifying me that lights are out (despite all lights operating normally). I believe Audi is underestimating the severity of the situation. We were fortunate that the initial failure on the freeway did not result in injuries or fatalities. I cannot fathom the idea of waiting for the vehicle to fail multiple times before taking it off the road, potentially putting lives at risk. The car has only been serviced at Audi dealerships. My family and I no longer feel safe in this car. While selling it is an option, I cannot, in good conscience, endanger someone else's life by not disclosing the vehicle's history and the well-known electrical defects Audi has.

Filed Jan 1, 2021 · Electrical, Lights · 74,000 miles · MI

Front right side market defective light and all lights seem to work. This seems to be a consistent problem on audi forms and complaints. This should not be a owners issue as dealerships are claiming to replace the entire light for $6,000 which is ludicrous just for a defective side marker light. I don't believe they fixed the problem from the last recall of side marker light controls. This is a major road hazard.

Filed Nov 8, 2018 · Airbags, Driver assistance · 74,000 miles · CA

Multiple warning lights come on at the same time including transmission, engine, ABS, esp, air bag and TPMS, while these lights are on vehicle hesitates and looses complete power, this condition happened in the middle of the highway and almost caused an accident, had to tow the vahicle home and eventually to my local audi dealership. I found on line technical bulletin sb-10053894-9766 which describes the exact sympthoms my vehicle is having, I strogly believe this should be a recall rather then a tsb