DRC pipework
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- 2nd Gear
- Posts: 186
- Joined: Sun Jun 15, 2014 7:58 pm
- Location: Aberdeen
DRC pipework
So the cluning sounds would indicate my DRC is on its way out, at the MOT the guy said the pipework was very corroded, so guessing there is a leak somwhere.
Has anybody replaced the pipes themselves, or know if its even possible to run copper brake pipe in, I've replumbed previous cars and have the sykes pickavant flaring tools, but does DRC even use standard tube flares for the fittings?
Failing that, has anybody ever had a quote for audi to replumb the DRC pipes
I'll probably just end up reoving the lot, but the dampers are the recall replacement V3 jobbies courtesy of audi and are only 5 years old having only covered 28k since then, be a shame to bin the working bits just cos of corroded pipes
Has anybody replaced the pipes themselves, or know if its even possible to run copper brake pipe in, I've replumbed previous cars and have the sykes pickavant flaring tools, but does DRC even use standard tube flares for the fittings?
Failing that, has anybody ever had a quote for audi to replumb the DRC pipes
I'll probably just end up reoving the lot, but the dampers are the recall replacement V3 jobbies courtesy of audi and are only 5 years old having only covered 28k since then, be a shame to bin the working bits just cos of corroded pipes
Current - 07 Avus Silver B7 RS4 Avant : Ceramics, Non Valved Non Res Milltek, K&N filter, SS+, adaptive xenons, black optics, KW3, 034 rear ARB, rear drop links & front adjustable top arms.
Past - 00 Saxo VTS : 266mm Mi16 calipers, Quaife ATB, 20mm torsions bars, 24mm ARB, Vibratechnics mounts
87 Vauxhall Belmont: 1.6L, 15" rockford fosgate subwoofer in 3 cuft sealed box, 5ch Rockford fosate amp, JBL components
Past - 00 Saxo VTS : 266mm Mi16 calipers, Quaife ATB, 20mm torsions bars, 24mm ARB, Vibratechnics mounts
87 Vauxhall Belmont: 1.6L, 15" rockford fosgate subwoofer in 3 cuft sealed box, 5ch Rockford fosate amp, JBL components
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- 4th Gear
- Posts: 940
- Joined: Sun Nov 11, 2012 8:22 am
- Location: North Yorkshire
Re: DRC pipework
Lightly corroded rear pipes were advisories on the MoT certificate for mine in 2015 when it was tested at the stealers (though not this year
). From memory they quoted about £1200 to replace them (it's a tank out job apparently). Unit 20 quoted £6-£700. Bit far from Aberdeen I know, but I'm sure there'd be a specialist in Scotland who could help you out. Personally I'd deffo stick with the OEM set up.
Don't know if it's DIY-able though.
Good luck.

Don't know if it's DIY-able though.
Good luck.
Misano Red B7 RS4 Avant. 20" Rotors. KW adjustable spring kit. 8 & 10mm H&R spacers. MRC Stage 2 remap. Pre-cat delete & x-pipe.
Re: DRC pipework
My DRC has just gone pop for the 3rd time. Seems that the underside of the car has a lot of corrosion and one the pipes that go over the fuel tank has given up. I'm waiting on a price to come back from the local specialist as I've asked them to do both pipes on the basis that a second pipe now is going to be cheaper than doing the whole thing again in a couple of years.
It's going to be an expensive December as it's in for a service, a replacement drivers door lock mechanism ( only opens with the key ), temp gauge and warning speaker repair which is a cluster out job and off to a specialist, and finally the DRC work. Oh and it's Christmas.
Got some pictures just come through of the pipes
It's going to be an expensive December as it's in for a service, a replacement drivers door lock mechanism ( only opens with the key ), temp gauge and warning speaker repair which is a cluster out job and off to a specialist, and finally the DRC work. Oh and it's Christmas.
Got some pictures just come through of the pipes
RS4 Cabriolet - Phantom Black with Exclusive interior
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- 2nd Gear
- Posts: 186
- Joined: Sun Jun 15, 2014 7:58 pm
- Location: Aberdeen
Re: DRC pipework
I was under the car today, the pipework coming from the hoses are all corroded, as are the fittings on the ends of the hoses, just big knots of corrosion, so would need new hoses and pipework all round
I'd be happy to pay £700 if I knew the work was going to remove all the iron parts of the system, ie copper pipes and stainless fittings.
I can never understand why manafacturers are still allowed to use steel pipes on a safety critical component of the car, especially on the salty roads of UK
I'd be happy to pay £700 if I knew the work was going to remove all the iron parts of the system, ie copper pipes and stainless fittings.
I can never understand why manafacturers are still allowed to use steel pipes on a safety critical component of the car, especially on the salty roads of UK
Current - 07 Avus Silver B7 RS4 Avant : Ceramics, Non Valved Non Res Milltek, K&N filter, SS+, adaptive xenons, black optics, KW3, 034 rear ARB, rear drop links & front adjustable top arms.
Past - 00 Saxo VTS : 266mm Mi16 calipers, Quaife ATB, 20mm torsions bars, 24mm ARB, Vibratechnics mounts
87 Vauxhall Belmont: 1.6L, 15" rockford fosgate subwoofer in 3 cuft sealed box, 5ch Rockford fosate amp, JBL components
Past - 00 Saxo VTS : 266mm Mi16 calipers, Quaife ATB, 20mm torsions bars, 24mm ARB, Vibratechnics mounts
87 Vauxhall Belmont: 1.6L, 15" rockford fosgate subwoofer in 3 cuft sealed box, 5ch Rockford fosate amp, JBL components
Re: DRC pipework
I just heard back from the garage, the 2 pipes that go from front to rear are £240 each plus one of the shocks is leaking and needs replacing. Factoring in labour and refilling the system is looking around the £2k mark. I'd better start working on the boss for my Christmas bonus
RS4 Cabriolet - Phantom Black with Exclusive interior
Re: DRC pipework
Mines got the 3rd gen shocks and my shock is now leaking so I've decided the whole system is just a ticking time bomb. I love the way it rides but was never happy with the hight of the front compared to the back so have just bought coilovers.
Re: DRC pipework
I had all my drc pipework replaced by Unit 20 about 2 years ago.
Audi quoted 35 hours!!!!
Unit 20 needed about 11 hours and know what they are doing. I seem to remember the pipes came to about £700 in total. You also need to re pressurise the DRC which Unit 20 can do.
It's a big job. The rear axle, prop shaft, exhaust and fuel tank need to be removed. I decided I wanted to stick with DRC so went ahead.
Audi quoted 35 hours!!!!
Unit 20 needed about 11 hours and know what they are doing. I seem to remember the pipes came to about £700 in total. You also need to re pressurise the DRC which Unit 20 can do.
It's a big job. The rear axle, prop shaft, exhaust and fuel tank need to be removed. I decided I wanted to stick with DRC so went ahead.
- Ranger Rico
- 2nd Gear
- Posts: 182
- Joined: Thu Sep 06, 2012 9:26 pm
- Location: Montrose
Re: DRC pipework
Irn bru,
Wont you have to replace your shocks too?
I took mine to north east motors in newmachar after my drc went, my pipes were also corroded, the bill was gonna be anything up to 6k so i opted for bilsteins, hardly notice the difference tbh, they are maybe a bit harsher on poor road surfaces, was 1500ish for the bilsteins fitted.
Wont you have to replace your shocks too?
I took mine to north east motors in newmachar after my drc went, my pipes were also corroded, the bill was gonna be anything up to 6k so i opted for bilsteins, hardly notice the difference tbh, they are maybe a bit harsher on poor road surfaces, was 1500ish for the bilsteins fitted.
Re: DRC pipework
I've just got my car back from the specialist. Seems that there was a lot of corrosion on not only the pipes that run front to back but also the ones up above the fuel tank. It's a massive job to do, pretty much the entire rear of the car had to come off. They even took a few pictures to show how much of a mammoth task it was
Also, had a service, drivers door lock assembly replaced and instrument cluster repaired so that's me out of cash for a while, which is a shame as I wanted to get the alloys done by Pristine just after Christmas.
Also, had a service, drivers door lock assembly replaced and instrument cluster repaired so that's me out of cash for a while, which is a shame as I wanted to get the alloys done by Pristine just after Christmas.
- Attachments
RS4 Cabriolet - Phantom Black with Exclusive interior
Re: DRC pipework
Wow big job. I'd get all the bits steam cleaned before re-attaching.
RS4 B7, Mugello Blue, K&W V3 & HR ARBs, set up by Centre Gravity, Milltek Valved Non Res & cat bypass pipes, BMC air filter, braided hoses, DOT 5.1, Terraclean, MRC Full Carbon Clean, MRC remap 448PS 477NM, 20" S7 alloys with 4mm spacers & Hawke spigots 66.6 > 57.1, AP Racing front discs. Sold Sept 2019. Now rocking an F80 M3
Re: DRC pipework
I needed the car back, something going on this weekend I'm told by the other half
RS4 Cabriolet - Phantom Black with Exclusive interior
Re: DRC pipework
Apologies for the old thread revival, but does anyone know if the front to back drc pipes come already bent to shape when purchased from Audi?


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- 3rd Gear
- Posts: 367
- Joined: Mon Dec 29, 2014 11:11 am
- Location: Northern Ireland
Re: DRC pipework
Yes they are fully formed & about £950 for all 4.
Re: DRC pipework
could you not have them custom made/or make them cheaper out of better material ( braided/ kunifer ) ? Or are the end fittings unique ?
Re: DRC pipework
If you had time you could make up stainless steel pipes (using the old ones as a guide) and then source the correct fittings for them. They would then outlast the car.
Misano Red RS4 B7 Avant