Auto Gearbox problems when cold.
Thread Starter
AudiWorld Newcomer
Joined: Apr 2018
Posts: 1
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From: Aylesbury
Auto Gearbox problems when cold.
Hi all, having a few problems recently with my 03 2.5TDI, when I drive off when the car is cold if I take it above 2000rpm the car will shudder and the gearbox will throw it in any random gear (has a mind of its own cant predict what gear it will put it in)normally a low gear whilst still juddering. This can happen a few times then the dash instruments PRND will flash red. But when the car warms after 10-15mins it's runs absolutely fine smooth gear changes and no juddering. I have contacted a few local garages who can't really help or say it needs a new tranny. Is this the case or is it something silly like low oil?? Cheers
AudiWorld Super User
Joined: Jun 2008
Posts: 2,284
Likes: 100
From: Fallbrook, CA
It very well could an issue of low ATF level, which is allowing air to be pulled into the system. Once warm, the ATF has lower density/greater volume, so the level raises enough to stop the air entering. This is all speculation, but I would start by having the fluid level checked and corrected if necessary. On U.S. B6 models, the transmission is filled from below through a stand-pipe in the transmission pan, and must be done with the car level, engine running, and within a set ATF temperature range. Note; avoid running the transmission like this more than absolutely necessary, and use the throttle lightly to avoid slipping the clutches.
Last edited by turbo510; Apr 23, 2018 at 12:28 PM.
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