A6 7 speed cvt transmission problems.

[2vodkaandcoke]

Hey looking some help as ive come to a brick wall trying to sort my car. 2009 ( 2008 ) model A6 S line 2.0 TDI with CVT 7 speed gearbox. Only have car bout 5 months and my problems started when I had oil changed at dealers. When I got home ( 20 miles ) there was an issue with car not changing gears and having to use paddle shift. this has gotten worse. At times I have no reverse and when in sport it wont change down quick enough and holds high revs. I f I am driving and car dosnt change and revs are high sometimes if I let off on accelerator it will change. Car had been mapped with dpf and egr removed bout 4 weeks before oil change its now back to standard. I have had the car with mechanics and electrics specialists but am still no further forward. I was told this morning by ecu doctor that it seems like a software problem but not in the TCM. Here are the fault codes the car is showing.
U0100 Engine Control Unit No Communication
P1881 Signal for specified acceleration. Missing message.

Have been told this could have been down to map but car ran 100% for 4 weeks before oil change and company Torquetronix are very highly rated and have done 100's of these cars.
Audi that did work will not look at car as ive told them it had been mapped.

[MarkTM]

What's the mileage? Am sure you're aware that these need their fluid changed every 38k miles.

If it's not been done before and you've exceeded that problems can be caused when you do change it.

What was it scanned with to give you those fault codes...and why on earth did you tell the dealer you had it remapped:confused:

PS: Despite your positives about Torquetronix I can find some bad reviews (some good too) for them on-line, both in fact from post 6 onwards here:

Good remap experiance in Northern Ireland? - SEAT Cupra.net - SEAT Forum (http://www.seatcupra.net/forums/showthread.php?t=237506)

PPS: I helps to have your location in your posts, am guessing you are in N.Ireland, the reason is that someone with VCDS could scan for a few beer tokens...IF they knew where you were. :)

[2vodkaandcoke]

Hey thanks for reply. Bought car with 64k and there was no record of trans oil being done so got it done straight away. What problems can be caused by this?? There is now 68k on car. Told Audi car was mapped as thought this might have been the issue. Stupid now thinking back.

[MarkTM]

2 vodkaandcoke will put you over the limit! :biglaugh:

Hindsight's a complete PITA, however had you joined the forum before your purchase everyone would have warned you off buying a car with 64k on the clock and no fluid change.

Use the search option on the forum using 'multitronic problems' of an indication of problems caused.

Have you thought about asking torquetronic to remove the remap and see if it improves anything?

As with most things look at the cheapest options first, namely:

1) that it's the remap/egr/dpf removal = nil cost (if the original parts can be reused)
2) that wrong fluid was used by the main dealer = unlikely but not impossible, but not sure how this is proved?
3) Your tranny is ******* and it will cost you £3k to replace

[Whippy53]

This does rather highlight the various issues regarding delays in getting tranny fluid changes on time as well as possible, (and only possible) consequences of getting remaps done. However, on a more practical level I would recommend a full scan first, followed by a trip to a specialist in multi boxes. Whilst these boxes have had a bad press its fairly rare for one so late to fail (if its been looked after). Hope you get it sorted and without too much expense.

[B5NUT]

Are you sure the standard map has been restored, as you would have more error codes for the EGR & DPF, and more than likely the car would be in limp mode at the moment.

[MarkTM]

^^^Where did OP say the new map had been removed:confused:

[Whippy53]

Car had been mapped with dpf and egr removed bout 4 weeks before oil change its now back to standard.
This is where the confusion is arising methinks!

[rowdy-999]

With the issues occurring so soon after an oil change one can assume there lies the problem.
It may not be filled correctly, or have the correct grade, even though it was done by Audi.

[MarkTM]

With the issues occurring so soon after an oil change one can assume there lies the problem.
It may not be filled correctly, or have the correct grade, even though it was done by Audi.

Or it's been done correctly and has simply dislodged something, only having it checked again and a sample sent for analysis will be conclusive.

[MarkTM]

This is where the confusion is arising methinks!

Sorry bout that, don't they usually gut a dpf on an outright performance map? If so will be a costly exercise to return to stock as a new one will be needed?

[Whippy53]

In for at least a bag a sand to get it back, and that's not at Audi rates either!

[Not_Anumber]

Having read the procedure my guess would be that the Audi dealer has either under filled or overfilled the transmission fluid as these boxes are very sensitive to level.

My advice would be: Contact the dealer to say you have discussed it with experienced Audi owners and you want the transmission fluid level checked to ensure it is correct. Ask if they will do this and if they will not do so then advise them that you will be taking it to an independent garage to have checked and if it is found to be wrong you will expect the dealer to pay for this work.

[MarkTM]

Not, OP posted this issue 16 months ago and hasn't posted since, so we'll never know if he got it sorted :(