Coolant Leaking Problems of Audi A4

Car leaking coolant through thermostat housing or coolant pump.

See all problems of the 2017 Audi A4 🔎.

Coolant level was low so took it into the dealer. The thermostat housing was leaking coolant.

My vehicle is leaking coolant. Every 8-10k miles it goes below normal level in reservoir . There is a distinct odor of coolant each time I get out of the vehicle. I have had Audi look at it 5 times. They confirm the coolant levels are low and they refill it saying they can't find a leak. I am concern that this is a fire hazard.

My Audi stopped blowing out heat first and then the check engine light came on. When I took it to get the check engine light code tested it read pressure default. Not long after my air bag light came on. Now my car is leaking coolant.

See all problems of the 2004 Audi A4 🔎.

The contact owns a 2013 Audi A4. While attempting to start the vehicle, it vibrated abnormally. The contact stated that the check engine warning indicator illuminated. The vehicle was towed to the dealer to be diagnosed. The contact was informed that the transmission coolant valve fractured, which caused coolant to leak into the electronic control module. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 80,500.

See all problems of the 2013 Audi A4 🔎.

During driving check engine start blinking and engine start shaking . After stop and turning off engine for a couple of minutes and starting engine again everything was fine until next day . Start engine and engine light was on , car has 2 cylinder misfire , loosing coolant from cooling flange and thermostat was leaking . I took car to local mechanic and change thermostat, cooling flange , j plug , ignition coils and 4 spark plugs , car was running fine for 1 day and start overheating and loosing coolant again and has 2 cylinder misfire . Called mechanic , he stop by my house and check pressure in the cooling system using special pump , everything looks ok but after taking out 2 cylinder ignition coil and spark plug he noticed a liquid in cylinder 2 and told me that head gasket is probably broken and has to be change ?!?!? cost around $1200. 00 this engine is completely failling a part , I changed so many parts over last 3 years as I own this car , spend over $5000 dollars to make this car running good and always is one thing after another , never ending story !!!! this model supposed to have major recoll and be fixt by Audi !!!!!.

2005 Audi A4 avant is currently still under warranty but the Audi dealership and Audi of America will not replace a cracked coolant reservoir. The onboard computer came on, indicating a problem, but there was no leak. However, the crack was very visible and will most likely spread further resulting in a leak. The crack was most likely caused from the excessive heat under the engine hood. I believe this was a serious flaw in materials used to manufacture the reservoir.

See all problems of the 2005 Audi A4 🔎.

Engine coolant temperature sensor failed, leaking coolant into the engine control module and wire harness, causing several thousand dollars of damage.

See all problems of the 1998 Audi A4 🔎.