2004 Audi A4: sudden loss of power

Filed Aug 23, 2021 · Electrical, Transmission · MD

PRNDS appeared in red on my dash and then started blinking. Went on line regarding this and read about a TCM switch or a lever switch malfunction.Have an appt with mechanic on 8/26/21. From what I have read we are looking at a cost prohibitive repair of several thousands of dollars. Does Audi have any responsibility? Apparently it is a common complaint with the A4 model. Felt loss of power when decelerating.

Filed Dec 2, 2014 · Acceleration, Fuel system · 90,700 miles · CA

Was driving on freeway for a few hours during which car was running fine, and car suddenly lost power just after I got off freeway and approached a mountain road incline. There was no warning light, or prior symptoms to engine failure, it just stopped. With help, I was able to get car out of the middle of the road and to safety. Tried to troubleshoot, used engine error code reader, and no fault codes found. Performed basics checked for potential fuel vapor lock due to altitude; checked oil, coolant and fuel levels- and all levels were ok. Battery was functioning - as radio, lights worked. Car has been consistently serviced and maintenance was current. Car was towed to nearest dealer, diagnosis by dealer fuel pump failure due to clogged fuel filter. My issue is that audi does not indicate service maintenance for fuel filter. There is not any maintenance recommendations or guidance in either the owner's manual or published list of recommended services to replace or check filer. There also were not any warning lights, fault codes or indications to watch for. I feel that it is negligent of the manufacturer to not indicate any service interval to change fuel filter in order to prevent fuel pump failure, and to ensure the safe operating conditions of the vehicle. The car lost power on a winding mountain road and put me at danger without warning. I am curious if this fuel pump incident could be associated with known fuel pump issues, the federal safety agency #pe08027. Key side notes, while I am the second registered owner, this car was purchased by my father who was the original owner, but for insurance and registration purposes the vehicle was transferred over to me, but I have all original records of the vehicle and can verify all maintenance services have been performed.

Filed Mar 18, 2014 · Electrical · 34,000 miles · CA

Tl* the contact owns a 2004 audi a4. The contact stated that while driving 50 MPH, the vehicle began to lose power. The vehicle was restarted and functioned properly. The vehicle was taken to the dealer for inspection where they stated that they could not determine the cause of the failure. The vehicle was not repaired and the failure recurred several times later. The manufacturer was notified of the failure. The failure mileage was 34,000.

Filed Sep 24, 2011 · Fuel system · 89,000 miles · PA

I was driving on the highway and the car suddenly lost power without warning, due to fuel pump failure. I have seen a lot of complains about this defect. I think audi should take responsibility for this safety issue. The audi should recall the car to prevent this from happening to other audi owners, because it is very dangerous to loss power on the highway without any warning.

Filed Dec 17, 2009 · Fuel system · 36,450 miles · CA

Driving along at 55mph, car lost all power. I drifted to the shoulder, luckily there was a wide shoulder. After an hour waiting for a two truck I opened the fuse box to see if I could see an issue. Found that the fuel pump fuse was blown. Replaced fuse, car started immediately. This has happened 2 more times. Despite being under warranty, dealer says they can't do anything to help me because the failure does not "throw a code". For now I do not drive the car with my family in it for fear of getting stuck, or worse, having an accident on the highway or in an intersection.

Filed Nov 18, 2009 · Fuel system · 58,971 miles · VA

Lost all engine power during highway driving. Discovered blown fuel pump fuse. Replaced fuse, attempted to start, immediately blew the second fuse. Car towed to audi dealer, who determined the cause to be a failed fuel pump. The failed unit had 1.1 ohms resistance, instead of the specified 28 ohms. Installed new fuel pump.

Filed Aug 15, 2009 · Engine · 66,000 miles · CA

Ignition coil failed in one cylinder on 2004 audi a4 1.8t quattro. This part on audis repeatedly fails. Loss of power, very shaky at idle and acceleration. $400 to repair, but now catalytic converter is ruined due to the cylinder misfiring.

Filed Sep 11, 2008 · Fuel system · 38,000 miles · CA

My car is the 2004 audi a4 3.0 quatro. The production date of my vehicle is 12/03. While driving at a speed of approx. 45 MPH on a 4-lane highway going up a hill, I suddenly lost power. There was not any warning prior to the sputtering and loss of engine power. It felt as though the car had run out of gas. I was in the fast lane, and fortunately for me, there wasn't a car in the lane to my right, so I was able to coast to the emergency lane. Aaa responded and, after determining that adding fuel did not solve the problem, the car had to be towed. I towed the car via a flatbed, rented a car, and two days and $750 later, discovered that my problem was due to a faulty fuel pump and clogged fuel filter. The mileage on my audi is only 38,000 miles....very low mileage for a fuel pump to go out. I discovered that the 2003 fuel pumps have been recalled, but audi of america has denied my claim that my '04 car's fuel pump (which was also manufactured in '03) should be included in the recall.

Filed Apr 30, 2008 · Engine · 34,125 miles · CA

Engine has an repeated but intermittent loss of power. Usually occurs shortly after starting the car and before the temperature gage shows the engine running at normal temp. Engine continues to run, but when pressing gas pedal all the way to the floor, there is insufficient power to move the car. Also, when in neutral or park, RPM barely goes above 1500 when pedal fully depressed. After waiting a few seconds for sometimes as long as a minute, engine will regain power and will then operate normally. This has happened at least 10 times from oct07 (when purchased car used) through 22 april. Manufacturer technician is unable to locate problem.