New RS6 owner!

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
User avatar
Shoppinit
Cruising
Posts: 19798
Joined: Wed Dec 31, 2008 6:24 pm

Re: New RS6 owner!

Post by Shoppinit » Wed Dec 22, 2021 4:40 pm

No, it's the gear position switch.

You should get a Vagcom before you do anything else. It will pay for itself very quickly.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

HPsauce
4th Gear
Posts: 788
Joined: Tue May 19, 2015 6:31 pm

Re: New RS6 owner!

Post by HPsauce » Wed Dec 22, 2021 5:02 pm

alexmac wrote:
Wed Dec 22, 2021 12:45 pm
Just been out on a run to the shops and had the PRNDS on the dash and no gears. Then on the way home it was back to normal again. Is this one of the sensors on the gearbox playing up?
As noted above, this is commonly due to a faulty/failing F125 switch, which is a sort of sensor (1930s technology!) bolted on the side of the gearbox.
Known by various other names and can be a PITA to swap. So make sure first (with VCDS/Vagcom) what the issue is.
As also stated earlier, get a proper VCDS cable and run some diagnostics; that assumes you have a suitable laptop to take to the car and connect.
VCDS pays for itself over and over again, first tool you should get. :thumbs:
(VCDS was long ago called Vagcom)

alexmac
1st Gear
Posts: 57
Joined: Sun Jan 21, 2018 5:29 pm

Re: New RS6 owner!

Post by alexmac » Wed Dec 22, 2021 6:38 pm

I only have apple MacBooks and I believe Vagcom/VCDS won’t work with apple?

User avatar
Shoppinit
Cruising
Posts: 19798
Joined: Wed Dec 31, 2008 6:24 pm

Re: New RS6 owner!

Post by Shoppinit » Wed Dec 22, 2021 6:41 pm

Just run it in a virtual machine.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

HPsauce
4th Gear
Posts: 788
Joined: Tue May 19, 2015 6:31 pm

Re: New RS6 owner!

Post by HPsauce » Wed Dec 22, 2021 7:36 pm

Or get a cheap old used laptop just for that job. Doesn't need anything special to say the least.

User avatar
Shoppinit
Cruising
Posts: 19798
Joined: Wed Dec 31, 2008 6:24 pm

Re: New RS6 owner!

Post by Shoppinit » Wed Dec 22, 2021 7:43 pm

Yeah, cheap as chips, especially compared to the cost of a macbook!
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

alexmac
1st Gear
Posts: 57
Joined: Sun Jan 21, 2018 5:29 pm

Re: New RS6 owner!

Post by alexmac » Wed Dec 22, 2021 8:14 pm

My mate is sorting out a boot camp system for my MacBook.

VCDS ordered up from Ross tech I have also ordered a new F125 switch because I thinks it’s just best to get it replaced.

Interested to see how many codes I have

HPsauce
4th Gear
Posts: 788
Joined: Tue May 19, 2015 6:31 pm

Re: New RS6 owner!

Post by HPsauce » Wed Dec 22, 2021 8:22 pm

Well even if your F125 doesn't need replacing (yet) it's a handy spare to have. :thumbs:
And if you do replace it, open up the old one and see if you can work out what's wrong and fix it.

alexmac
1st Gear
Posts: 57
Joined: Sun Jan 21, 2018 5:29 pm

Re: New RS6 owner!

Post by alexmac » Wed Dec 22, 2021 8:26 pm

HPsauce wrote:Well even if your F125 doesn't need replacing (yet) it's a handy spare to have. :thumbs:
And if you do replace it, open up the old one and see if you can work out what's wrong and fix it.
Roger that Image

bilko1
Top Gear
Posts: 1807
Joined: Fri Aug 27, 2010 12:13 am
Location: Bournemouth,Dorset, UK

Re: New RS6 owner!

Post by bilko1 » Wed Dec 22, 2021 9:25 pm

I get randon PRNDS light and its due to 5th gear solenoid according to VCDS this is after having a new F125 switch. Best get it scanned before firing up the parts cannon.
Avus Avant, RNS-E mk2 with sds and Bluetooth, Milltek, Hotchkis, Bilstein, Forge, ITG, A.C.E, Wagner, FBMFSW, MTM.

alexmac
1st Gear
Posts: 57
Joined: Sun Jan 21, 2018 5:29 pm

Re: New RS6 owner!

Post by alexmac » Thu Dec 23, 2021 3:21 pm

bilko1 wrote:I get randon PRNDS light and its due to 5th gear solenoid according to VCDS this is after having a new F125 switch. Best get it scanned before firing up the parts cannon.
VCDS on the way Image

alexmac
1st Gear
Posts: 57
Joined: Sun Jan 21, 2018 5:29 pm

Re: New RS6 owner!

Post by alexmac » Thu Dec 23, 2021 3:26 pm

Anyone happen to know where I could find a replacement cover for my headlight switch? Thought I found one on eBay but turns out allot of the sellers flip the picture upside down to make it look like it’s the right one.
Also wanting to fix the worn out buttons on the heater control panel, any ideas? Stickers, buttons?

Image
Image

steve2003rs6
Top Gear
Posts: 2404
Joined: Mon Aug 19, 2019 7:43 pm

Re: New RS6 owner!

Post by steve2003rs6 » Thu Dec 23, 2021 4:35 pm

New light switch from Audi.
EBay got my unit (with good buttons) from Lithuania and cheap as chips.
10 mins to swop the buttons over.

alexmac
1st Gear
Posts: 57
Joined: Sun Jan 21, 2018 5:29 pm

Re: New RS6 owner!

Post by alexmac » Thu Dec 23, 2021 5:03 pm

steve2003rs6 wrote:New light switch from Audi.
EBay got my unit (with good buttons) from Lithuania and cheap as chips.
10 mins to swop the buttons over.
I’ll try Audi but the switch has been discontinued and can’t get it anywhere.

Seen some good heater units from Lithuania, probably same place you got yours.

steve2003rs6
Top Gear
Posts: 2404
Joined: Mon Aug 19, 2019 7:43 pm

Re: New RS6 owner!

Post by steve2003rs6 » Thu Dec 23, 2021 5:46 pm

Got mine from Audi last year iirc.
Had to buy the complete switch assy. Around £100 ish
Loads on eBay. But most of them are for LH drive vehicles.
At least they was when I was looking.
Failing that. Audi tradition. But they won’t ship to the uk.

What did the f125 switch cost. I presume you bought a new one. And where did you buy it from.

Post Reply

Return to “RS6 / RS6 plus (C5 Typ 4B) 2002-2004”

Who is online

Users browsing this forum: Majestic-12 [Bot], moss and 442 guests