mrbizzy

A2 1.2tdi max 100km/h, jumping out of 5th gear

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Hello.

I have this A2 wih 1.2tdi engine for few weeks now. very satisfied with the car except one problem that should be sorted.

 

While the car is relatively cold all goes well but on a highway it reaches only 100-105km/h in the 5th gear and no further acceleration. so the rpm sits little above 2000 and the consumption is displayed as 4l/100km. Even when it shifts down to 4th gear it does not ad much and speed rises to 110km/h not more.

 

That is annoying, especially because here are no recognized A2 (especially 1.2tdi) specialists who could i trust to fix it. But that is not all, unfortunately.

 

When it gets warmer, about 30min driving, the 5th gear starts to "pop-out" and sometimes releasing acceleration pedal and pressing again helps to activate the gear, but sometimes it requires to stop and start the engine to gain the drive-ability.

What happens is that gear selection shows E or D but no gear numbers are displayed and no gear is selected. Also accelerator pedal is sometimes active but sometimes dead as the engine does not react on it any more.

 

When this happens the only way to drive further is to manually switch gears and leave in 4th. then all is ok and car runs smooth and quiet.

 

Also i noticed that when this happened and i tried to keep driving on and on there started a loud noise from gearbox in the first gear, then in the second and later in all four gears. but after a easy driving in 4th gear on a highway with some 30min stop in the middle the sound disappeared.

 

 

Any suggestions where to start looking for a fault/solution?

 

Casper from Latvia

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Hi,

 

Looks like you have two different problems:

 

- no power: probably vacuum line to the Turbo issue or the vanes in

the Turbo are stuck, try to lubricate the lever that goes into the variable geometry turbo.

 

- jumping out of 5th gear: first do a basic setting using VAG-COM of the gearbox. instructions can be found on the internet. This is NOT an easy car to work on. Quite often jumping out if 5th gear means that the gearbox bearings are worn and the entire gearbox needs to be overhauled.

 

Good luck,

 

Paul

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