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Showing results for tags 'stutter'.
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My 2002 A6 petrol estate started running badly at 82000 miles with the automatic gear change around 2000rpm causing a sensation like a missed beat and I wondered about spark plugs. It ran smoothly above 2200rpm at sustained speed but in traffic it was lumpy to drive with the frequent changes around 2k My trusted VAG reader gave the code in the title saying: 18034 Powertrain Data Bus: missing message from TCU : P1626 The solution took hours to track down across multiple Audi forums so I wanted to share it to maybe save others some time (and money). Change the transmission fluid (ATF) and pan. The 80k service requires this and I’d missed it having only recently bought the car. The garage told me the black burnt smelling stuff that came out was a long way from the green replacement. Now it runs as smooth as silk. Total cost £280 (Sept 2024) There are multiple requests for help on this out there and buried in some replies is the suggestion to change the ATF. This was only confirmed by one user in the searching I did. Thanks to him for posting, I just thought I’d add some confirmation that his suggestion solved my problem. Just wish I’d noted the forum and member’s name. Hope this turns out to be useful for someone else. 👍
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- stutter
- jumpy gear change
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Audi S3 2019 Sportback 5Dr (Stock) 40k miles. Hi all, have been having this issue with my car for a few months now. Seems to hesitate when flooring it at 2,800/3000 rpm + and when in 3rd gear onwards. Initially thought Spark plugs may do the trick. This was recently changed - and on the same day my brother in law had connected his diagnostic kit - it came up with a fault code re o2 sensor bank 1 sensor 2.. he had cleared that for the time being and taking it to two garages (including 1 VW/Audi Specialist), we haven’t been able to replicate the fault code and the specialist couldn’t insist more that it’s not the o2 sensor and that could have flagged up even from a bad batch of fuel. They recommended I take it somewhere with a dyno system which may help to identify the issue? I’m so lost as to where to go from here. My brother in law who are somewhat better clued up on mechanics than me are now suggesting changing the coil pack. Last full service was March 2022. Minor service 2023. Both from main dealer. We do do ALOT of miles. Any suggestions? Thanks in advance IMG_9283.MOV
