Audi A4 misfire problems

Filed Apr 1, 2025 · Engine, Transmission · TX

The vehicle at 13,xxx miles on the high ways, and during stop & go traffic; vehicle begins to tremble, transmission and floor shakes, rpms are higher than normal, abnormal noises coming from engine (screeching), jerking on acceleration on the first gears, rough idle, happens only on highways after 1hr of driving. Can drive over 40 min without any check engine light turning on. No codes come up, while clearly having issues. After a day of being off, car goes back to normal without those issues, just vibrations and pulsing on idle. -happens on Texas highways where vehicle begins to have trouble with acceleration and transmission shakes yet no check engine or error messages appear. -problem has been shown to one Audi dealer while happening and another Audi dealer was able to reproduce the problem. They even noted how vehicle will do all the issues noted above while not providing any error codes or messages. - vehicle has been inspected but all they do is reset software and hand back keys. While issues are still prevalent. - no warning, no over heat or any codes appear on the vehicle. Issues started at 13,xxx miles. Only on long highway or stop and go traffic does it happens

Filed Jul 14, 2024 · Engine · KS

Engine oil consumption, timing chain. This is a massive problem among Audi vehicles across the board. Engine oil consumption is abnormal and if unnoticed leads to engine dying in the middle of the road which is dangerous and I’ve personally had this happen to me on multiple occasions. The engines timing chain goes bad and causes the entire engine to need to be replaced which consumers have to pay for out of pocket. Damage from timing chain, rough idle, sluggish engine performance, rattling, engine failure. There are large amounts of consumers experiencing the exact same issues. Something needs to be done it’s not safe at all and Audi should be held responsible and liable to fix these issues. The engines are deteriorating at an abnormal and accelerated rate.

Filed Jun 20, 2024 · Electrical, Engine · CA

Bought this car from a guy add said car runs great has smog, reg ,ac works great (not )my boyfriend before I could say anything gave guy money and I signed the bill of sale I said should test drive it so drove to my mechanic in vista ca and he said a German car oh boy and I said ouch so he said to bring it back by after checking it out so he could look in to it further so got in car that had spiderwebs on the motor my guy don't know much about cars so we went back and car stopped steering locked up ignition locked up car shut down in middle of busy traffic and would not turn over nothing so called my apt manager thought out of gas so he got some gas put it in and it started after 1 and a 1/2 hours got to gas station filled it up and started up and got back was scared because of this car people don't care almost got hit a few times so went back to seller gone so tried to find a number none text on face bk market place said this car has problems almost killed us just stopped and nothing worked went to Walmart to get some break fluid and coolent car hot and ac didn't work and something leaking it was brake fluid then check engine light on friend came and checked it and the little thing that hook up see what codes for diagnoses or why check engine light on was throwing codes misfire and fuel pump and more don't remember but my guy took pictures of the codes went back Monday cause got car [XXX] and the guy sent my guy a message bring it by and I'll look at it the car runs great he said master cylinder leaking coolent leaking oil was old how did this car even pass smog with it misfiring and shutting down once in street and at Walmart it just shut off now told fuel pump coil wires were cracked two relay switches were broken fixed one and car misfiring hole in the mast cylinder and fluid leaking and this seller calls him self a mechanic very sad have put over 100.00 dollars the guy fixed the ac and gave my guy 40 dollars I paid 55.00 seller their car at my mechanics. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORM

Filed Sep 25, 2023 · Engine · NY

2017 A4 B9 premium plus model, AWD, 2.0T. I have had an Audi dealership service my car for all major service intervals outside of oil change, not only at recommended intervals but even early. 3 years ago I had my 40K mile service done at 35K miles. Spark plugs were replaced by Audi Hawthorne in Westchester county, NY. One week ago, at 49K miles (well before the 6 years or 60K miles Audi says their spark plugs will last) my engine seized while driving and was misfiring. This caused an engine shut down WHILE THE CAR WAS IN MOTION on the highway. I was able to restart and make it off the highway where the car seized again. I had to then be towed 30 miles back home. Took it to my locally well known body shop that I have used for years for them to say: 1. My spark plugs were loose and installed incorrectly and 2. The electrode at the top of the plug had broken off TWO SEPERATE SPARK PLUGS and fallen into the engine, causing scoring to the engine and #4 piston as well as blow-by during combustion. They said this had to be caused by a manufacturing defect PLUS incorrect install. they fixed what they could and recommended I take it to Audi. Audi is now saying I need a whole new engine because of damage to piston 4, and not saying they will cover the replacement cost of $21,500.Â

Filed Oct 15, 2021 · Driver assistance, Engine · OR

2013 Audi A4 with a 2.0 turbo engine approximately 62.5K miles and up to date with all services. I was driving on the highway at highway speeds when the engine suddenly started to misfire with a partial loss of power making the car difficult to steer. At that time the check engine light was not illuminated. I was able to get off the highway and drive home about 2 miles away from when the misfires first occurred. The police did not get involved as I was able to return home. The following week the car was towed to my mechanic where it was diagnosed that cylinder 3 had a problem. At that time the check engine light illuminated. He recommended that I tow my car to the Audi dealership as they have better availability of parts. The dealer took apart the engine and diagnosed a broken piston ring which destroyed many other parts of the engine. The engine had to be replaced with a new one from the factory. Audi should be held accountable for catastrophic engine failures that may result in injury to others due to poor engine design.

Filed Mar 12, 2017 · Engine · 113,225 miles · NY

Engine misfire likely due to timing chain jump. Extensive repair to engine including intake valves, timing chain, tensioner, and several related parts. At the time of the malfunction, the vehicle was being driven in albany, ny, during heavy traffic. The malfunction could have resulted in personal injury to occupants in this vehicle as well as to other vehicles. Cost of the repair was $3,194.46, and resulted in loss of the vehicle for 9 days.

Filed Aug 14, 2015 · 60,000 miles · NY

I have an audi a4 2006 that I purchaced as a certified pre-owned vehicle. Shortly after in november 2009 I received a recall from audi of america "upcoming voluntary emissions service action 28f2/ji ignition coil inspection replacement"'. At the time I wasn't having any problems but took the car to dealer where I purchased it and had the coils checked. Almost immediately after leaving the check engine light came on and I went straight back to have it checked. There was never anything ''wrong"' so I couldn't trust the check engine light. This seemed to become a routine whenever I went to the dealer the check engine light was surely to come on. So much so that I stopped going to that dealer for servicing, its not uncommon to hear that women that go to get their car serviced get "special'' treatment. I am always skeptical of that. Now I have 60,000 miles on my car and after experiencing severe shaking and the engine light coming on and blinking one of the items that arose again was the coils replaced for $424.22 a misfire cyl 4 caused by ignition coil misfire in cyl 4. Apparently the recall "'is over" that was the detailed and thoughtful explanation I was given by the representative from new country audi in greenwich, ct. I don't understand how a recall could ever be over as it will be unsafe and costly to the customer for the life of the vehicle.

Filed Aug 13, 2015 · Engine, Fuel system · 39,000 miles · TX

Two faulty mis fires caused car to misfire and run rough and jolt. Car was towed to the closest audi dealership for repairs. Subsequently, within the next 9 months, the care again exhibited close to the same symptoms and the car was again towed to the closest audi dealership. This time, the intake manifold was cracked and was replaced. With a service bulletin out on this vehicle on these exact issues, I was still charged a $250 deductible per incident ($500 total) on my extended warranty to replace both the injectors and the intake manifold. According to the service bulletin, I should not have been charged.

Filed Jul 13, 2015 · Engine · 84,000 miles · TX

The timing chain tensioner failed causing the audi interference engine to become out of sync resulting in the engine becoming totaled. This has become a common occurrence and is widely reported on 2009 and newer models. Below is an article with their assessment of the situation. The car had been taken in 2x for misfires and was diagnosed as an issue with the spark plugs, it is now clear that this was the timing chain being out of alignment and missed. Upon the engine light coming on the car was left parked until the day before the service appt when it was to be dropped off at the service location, at that time, upon starting the vehicle the timing chain tensioner failed and caused the engine to fire out of alignment damaging the engine. When speaking to a member of the audi dealership it was shared that another vehicle is in for the same issue and that they are seeing this occur more and more in their vehicles. This failure is also reminiscent of the 2007 class action law suit which prompted audi to move from a timing belt to the for the same outcome occurring. Http://redlinespeedworx.com/2-0t-tsi-timing-chain-failure/ if audi had placed out updated parts, I would like to know why there was no recall to replace the part or anything mentioned by the manufacture indicating the release of updated hardware to address a "potential issue"

Filed Jul 13, 2015 · Engine · 84,000 miles · TX

The timing chain tensioner failed causing the audi interference engine to become out of sync resulting in the engine becoming totaled. This has become a common occurrence and is widely reported on 2009 and newer models. Below is an article with their assessment of the situation. The car had been taken in 2x for misfires and was diagnosed as an issue with the spark plugs, it is now clear that this was the timing chain being out of alignment and missed. Upon the engine light coming on the car was left parked until the day before the service appointment when it was to be dropped off at the service location, at that time, upon starting the vehicle the timing chain tensioner failed and caused the engine to fire out of alignment damaging the engine. When speaking to a member of the audi dealership it was shared that another vehicle is in for the same issue and that they are seeing this occur more and more in their vehicles. This failure is also reminiscent of the 2007 class action law suit which prompted audi to move from a timing belt to the for the same outcome occurring. Http://redlinespeedworx.com/2-0t-tsi-timing-chain-failure/ if audi had placed out updated parts, I would like to know why there was no recall to replace the part or anything mentioned by the manufacture indicating the release of updated hardware to address a "potential issue"