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D2 - Transmission Gearboxes, diffs, drive shafts.

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  #11  
Old 5th January 2011, 09:07 PM
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Quote:
Originally Posted by Singh View Post
Glad to hear it's not serious as honestly, I think your S8 looks fantastic. I want it!
I'm rather pleased too lol Car needs a good clean - it's still living outside due to not clearing my garage out in time of all the crap we collected prior to our son being born, plus having a water leak since Christmas which has taken ages to sort so been short of time.

Hoping to finish sorting the garage this weekend and giving the beastie a good wash off.
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  #12  
Old 6th January 2011, 08:14 AM
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F125 procedure here..

http://www.audipages.com/Tech_Articl...chreplace.html
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  #13  
Old 6th January 2011, 08:19 AM
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Cheers for that - very helpful.

It may also explain why my cruise control seems to work intermittently, especially when I'm trying to set or increase speed. Wandered if the switch itself was faulty but this claims it takes signals from this switch, so before I replace anything else that F125 will be getting replaced.

My mate will be doing the job for me - it would take me 3 times as long and it's time I don't really have these days!

At least it doesn't stop me driving the car!
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  #14  
Old 6th January 2011, 08:45 AM
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If it helps, I've never seen a intermittent D2 facelift cruise fault that wasnt simply down to an underused, and thus slightly contact-corroded cruise stalk....

Some frisky button pushing / sliding action for a minute or so will often bring it back to life....

The cruise control is a direct function of the engine ECU on the facelift cars, and other than output shaft speed sensors, hasn't got a right lot to do with the gearbox.
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  #15  
Old 6th January 2011, 01:04 PM
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Cheers - will give that a try - it sets speed OK but resume/increase doesn't seem to do very much some of the time so end up pushing the end of the stalk in again to re-set speed
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  #16  
Old 6th January 2011, 06:17 PM
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Interesting, although I can't see me being able to change the F125 switch myself!

There was time when my cruise was intermittant, but use seems to have made it work 100% over the past few months.

Jon
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  #17  
Old 7th January 2011, 08:22 AM
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I like using cruise, if only to stop me straying into licence losing territory on too regular a basis on the motorway! Sounds like the previous owners haven't been habitual users of it.

I'm not changing that switch myself - my garage is only just big enough to get the car in, never mind actually get around it/under it/over it!
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  #18  
Old 13th May 2011, 02:55 PM
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Had my F125 range switch and gearbox oil and filter replaced today Mate didn't measure how much fluid came out as he left it to drain for an hour and got on with something else. He reckons a good litre then dropped out when the filter was unbolted and even with the minimal mileage mine has done the magnets had done their job catching any metal fragments working their way round the box. Said changing the F125 was a bitch - largely because there's next to no clearance on the exhaust downpipe, compared to the RS6 ones he's used to doing. I guess not surprising these switches fail if they're subject to serious heat cycling for year after year?

It took about 7 litres to refill the gearbox, so sounds like he got the vast majority to drain out. I'll probably get it done again in 2 years time and it should then be good as new.

There was nothing wrong with the way mine changed gear anyway - this is all preventative care, since the car's done only 42k to date. It's had a blast up the motorway since and I ran it into town earlier to get a slow puncture repaired and all seems fine with how the box is operating, including a brief bit of 'spirited' throttle use

Car was back at my house by 1.30 and had an oil change service as well - hopefully no more expense for a year.....

Although the ABS light that comes on some times when getting the car out of the garage has been traced to an intermittent offside front sensor fault. Doesn't seem to like jockeying back and forth before you get going - if you head off straight away it seems to work fine
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  #19  
Old 19th May 2011, 08:43 AM
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Nearly a week since I had the gearbox oil changed - initial thoughts are positive - box seems much quicker to select a gear after moving lever from D to R or back the other way. Much quicker now than my A6 to select a gear, so guess that would benefit from a change too!
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