HI, I have a 2001 A6 2.5 TDI V6 with a Multitronic gearbox. Every now and again (under heavy accelration) in "D" mode it fails to shift up to the next gear (from 2 to 3rd, and from 3rd to 4th). I get a "limp" drive and have to let the revs drop so that the car shifts down. Then it is fine and shifts up again.

Has anyone else encountered this issue. I do not know if this is a fault or expected.

 

If you've truly got a multitronic, isn't it the case that you don't have a 2nd/3rd/4th/etc.? My understanding of multitronic is that it is a continuously variable transmission. As such, you shouldn't be detecting any discrete shifts. If you've got the accelerator down, it should hold the engine to a higher RPM (where you have more horsepower to accelerate/pull up a big hill/etc.). Backing off on the throttle quicklyl will allow the transmission to shift to a gear higher ratio abruptly which could easily be perceived as a "shift."

If you do in fact have a traditional automatic transmission, it's referred to as a Tiptronic.

 

Hi

When I refer to "gears" these are what are displayed when I move the selector to the right out of "D". I assumed that this was the coreesponding gear.

 

Just in Case... Whats the easiest way to tell if it is Multitronic or Triptronic?

 

RESOLVED!!

The issues was finaly resolved after taking the var to Audi for a diagnostic. There is no problem with the gearbox. There is a broken T-piece in the turbo vacumn system which is stopping the engine from receiving the correct singles and hence stopping the gearbox from selected up gear ratios.

Just thouht I would share this in case anyone else has a similar problem.

Cheers