My RS6's gearbox has given up the ghost

My RS6's gearbox has given up the ghost

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Discussion

mark.c

1,090 posts

180 months

Sunday 21st December 2014
quotequote all
NateWM said:
Schermerhorn said:
Fluid and filter change.

Could cure it.
Yes of course, spend hundreds on putting in the correct fluid (ZF dextron fluid is VERY expensive), filter etc, only to find out is hasn't cured a MECHANICAL fault...Would you change the oil in your car's engine if it started knocking?

Some people just shouldn't suggest solutions for a subject that they have no idea about!
To be fair, he was only trying to help and since the suggestion isn't all that left field for SOME gearbox faults I'm not sure your comment is entirely fair or constructive.

carreauchompeur

17,847 posts

204 months

Sunday 21st December 2014
quotequote all
mark.c said:
NateWM said:
Schermerhorn said:
Fluid and filter change.

Could cure it.
Yes of course, spend hundreds on putting in the correct fluid (ZF dextron fluid is VERY expensive), filter etc, only to find out is hasn't cured a MECHANICAL fault...Would you change the oil in your car's engine if it started knocking?

Some people just shouldn't suggest solutions for a subject that they have no idea about!
To be fair, he was only trying to help and since the suggestion isn't all that left field for SOME gearbox faults I'm not sure your comment is entirely fair or constructive.
Quite. I previously had an A8 with a slightly rough change and a fluid change sorted it out. Plenty of examples of it in fact.

Schermerhorn

4,343 posts

189 months

Monday 22nd December 2014
quotequote all
NateWM said:
Schermerhorn said:
Fluid and filter change.

Could cure it.
Yes of course, spend hundreds on putting in the correct fluid (ZF dextron fluid is VERY expensive), filter etc, only to find out is hasn't cured a MECHANICAL fault...Would you change the oil in your car's engine if it started knocking?

Some people just shouldn't suggest solutions for a subject that they have no idea about!
Really? Tell that to Edd 'no clue' China who fixed a tiptronic box on a Porsche Boxster by changing the transmission fluid. A knackered gearbox started working again seemlessly.

If you can't behave properly or say anything nice, just STFU instead.

Pkh72

1,517 posts

186 months

Monday 22nd December 2014
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I know this could be a complete shot in the dark but it could be that the RS6 has a different fault to the Boxster.

Just a thought.............

Patrick Bateman

12,187 posts

174 months

Monday 22nd December 2014
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I think he's well aware of that possibility.

Baryonyx

17,996 posts

159 months

Monday 22nd December 2014
quotequote all
carreauchompeur said:
Quite. I previously had an A8 with a slightly rough change and a fluid change sorted it out. Plenty of examples of it in fact.
Yep, plenty of people on the A8 parts forum seemed to have cured rough or ticking gearboxes with an oil and filter change. Definitely worth a look.

Escy

3,939 posts

149 months

Monday 22nd December 2014
quotequote all
NateWM said:
Schermerhorn said:
Fluid and filter change.

Could cure it.
Yes of course, spend hundreds on putting in the correct fluid (ZF dextron fluid is VERY expensive), filter etc, only to find out is hasn't cured a MECHANICAL fault...Would you change the oil in your car's engine if it started knocking?

Some people just shouldn't suggest solutions for a subject that they have no idea about!
What tends to happen often with automatic gearboxes is that they are sold as "sealed for life", this isn't the case, due to normal wear and tear the oil degrades over time and will pick up small particles of gearbox debris. These often end up inside the solenoids/actuators that control the operation of the gearbox. People suggest oil changes as preventative maintenance to stop this happening. It's not unknown for some fresh oil to flush out partially blocked/sticking actuators and fixing any issues.

I don't know specifically the issue with the RS6 gearboxes but i've fixed a Volvo C70 and VW Touareg gearbox, both made by Aisin Warner by removing and stripping the actuators down and cleaning them out. Both had issues when warmed up but were fine cold.

Patrick Bateman

12,187 posts

174 months

Monday 22nd December 2014
quotequote all
This sealed for life lark is quite irritating. Ask the gearbox manufacturer and car manufacturer what they recommended and you'll get two different answers.

baccalad

220 posts

115 months

Monday 22nd December 2014
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Burn it out. Insurance job.

Escy

3,939 posts

149 months

Monday 22nd December 2014
quotequote all
baccalad said:
Burn it out. Insurance job.
That's also the best way to deal with a Porsche that has scored bores

Schermerhorn

4,343 posts

189 months

Monday 22nd December 2014
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Pkh72 said:
I know this could be a complete shot in the dark but it could be that the RS6 has a different fault to the Boxster.

Just a thought.............
Really??????

CGJJ

857 posts

124 months

Monday 22nd December 2014
quotequote all
I have an RS6.

Don't take any advice off anyone here unless they know the C5 RS6 well.

Generic gearbox advice is worthless.

You need to contact Unit 20 or MRC (i hear Unit 20 are doing exchange gearboxes now).

Both are the finest RS6 specialists in the UK and i would not talk to anyone else about the issue unless you
have a penchant for spending and enjoy regret.

You are also on the wrong forum for the specialist knowledge you need when discussing an RS6.
You need to be on the RS246 forum where you can talk to countless others who have been through everything
you are currently going through.

All the best.


CGJJ

857 posts

124 months

Monday 22nd December 2014
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Sorry,just read page 2 of this thread where others have mentioned Unit 20.Fairplay.

nct001

733 posts

133 months

Monday 22nd December 2014
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Ive had an RS6 Oettinger and its like they have built the car around the gearbox, this is one for a specialist as mentioned.

This was a couple of years ago and Audi only offered a limited warranty on their work, 1 year???

The cost of the repair was not viable against value of car and so I advertised it for a price stating new gear box fitted, and three weeks later nobody phoned... apart from idiots with way over priced part exchanges... so listed on eBay no reserve as spares or repairs with declared gearbox fault and the difference in price between fixed price and eBay price was much less than true cost of repair. Perhaps because these cars are so known for this failing that it makes sense to buy one with a gearbox issue and repair yourself and that way you know it has been done correctly with correct on going warranty.

Ray Luxury-Yacht

8,910 posts

216 months

Monday 22nd December 2014
quotequote all
Is it a ZF 5HP unit, by any chance?


briang9

3,297 posts

160 months

Monday 22nd December 2014
quotequote all
CGJJ said:
I have an RS6.

Don't take any advice off anyone here unless they know the C5 RS6 well.

Generic gearbox advice is worthless.

You need to contact Unit 20 or MRC (i hear Unit 20 are doing exchange gearboxes now).

Both are the finest RS6 specialists in the UK and i would not talk to anyone else about the issue unless you
have a penchant for spending and enjoy regret.

You are also on the wrong forum for the specialist knowledge you need when discussing an RS6.
You need to be on the RS246 forum where you can talk to countless others who have been through everything
you are currently going through.

All the best.
sound advice, however if as I suspect its a ZF box then the only A1 rated ZF agent in Europe would be my first stop, thats why I mentioned them in my post above. They really are the best around when it comes to ZF boxes.



Edited by briang9 on Monday 22 December 23:16

Pkh72

1,517 posts

186 months

Tuesday 23rd December 2014
quotequote all
Schermerhorn said:
Pkh72 said:
I know this could be a complete shot in the dark but it could be that the RS6 has a different fault to the Boxster.

Just a thought.............
Really??????
I was taking the piss rolleyes

rambo19

2,742 posts

137 months

Tuesday 23rd December 2014
quotequote all
NateWM said:
Yes of course, spend hundreds on putting in the correct fluid (ZF dextron fluid is VERY expensive), filter etc, only to find out is hasn't cured a MECHANICAL fault...Would you change the oil in your car's engine if it started knocking?

Some people just shouldn't suggest solutions for a subject that they have no idea about!
Not always true.
Ive changed the oil and filter in quite a few 'knackerd' autos, and bingo, gearbox was OK.

MattYorke

3,771 posts

253 months

Tuesday 23rd December 2014
quotequote all
An oil change can easily reinvigorate an unhealthy box, but won't avoid the fact that the box is worn. My 167K saab - took about 3 refills to flush it adequately but it now behaves itself pretty well again.

On "normal" cars, this can restore function perfectly, but on the OP's RS6, the engine torque is right on the limit of the box and TC's capability. Most likely if VCDS was plugged in he'd see the torque converter is now not locking up.

MattYorke

3,771 posts

253 months

Tuesday 23rd December 2014
quotequote all
Yup. 5HP24A to be precise.

Ray Luxury-Yacht said:
Is it a ZF 5HP unit, by any chance?