*wanted* How to discharge and remove DRC system

4.2 V8 32v Naturally Aspirated - 414 bhp
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DaytonaRs4
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*wanted* How to discharge and remove DRC system

Post by DaytonaRs4 » Wed Oct 30, 2013 11:10 am

My Drc has failed and currently is at around 3-4 bar, instead of messing around fixing it im getting rid....just recieved KW V3 coilovers ready to be fitted.

I am mechanically minded and fitted many sets of coilovers before, with the help of how to's in forums like this one

Does anyone know of a 'how to' on here for the easiest way to depressurise and remove the DRC system and install new KW's

just looking to save time and headache's on the install. i have all the correct gear (other than kit to depressurise DRC system)

planning on installing them friday this week, then getting car corner weighted and hunter aligned after a few days settling out time..

any help much appreciated..

cheers
2013 RS5 Phantom Black, MRC Stage 2 and TCU, Bilstein B16 IRC, 034 Arms, H&R ARB's, Milltek non res, ITG, 20” Ispiri FFR6 / PS4s, AP Radical 6 pot brakes / 390mm floaters, Pagid RSL1, JL Audio, EMtuning headlight build, Gtechniq ceramic and Llumar PPF

Gone: Daytona B7 RS4 saloon

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harding
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Re: *wanted* How to discharge and remove DRC system

Post by harding » Wed Oct 30, 2013 4:00 pm

OT:
What is DRC?
Audi RS4 Avant
[2014]: blacked out wheels & grill: center res delete : flaps open
[2015]: brembo & yellowstuff : michelin pss : h&r spacers
[2016]: sachs performance clutch : decoked : led there be light : black window trim
[2017]: stertman stage 1 : black headlights & clear corner mod : gruppe m air intake : gutted resonators

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MB2
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Re: *wanted* How to discharge and remove DRC system

Post by MB2 » Wed Oct 30, 2013 4:01 pm

Dynamic Ride Control - ie our suspension

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DaytonaRs4
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Re: *wanted* How to discharge and remove DRC system

Post by DaytonaRs4 » Wed Oct 30, 2013 11:44 pm

well this is the best i can manage so far, it for that sexy ohlins stasis gear, instructions include removal of factory stuff unlike kw instructions, thought it might be of use to some people http://www.stasisengineering.com/sites/ ... %20V.2.pdf
2013 RS5 Phantom Black, MRC Stage 2 and TCU, Bilstein B16 IRC, 034 Arms, H&R ARB's, Milltek non res, ITG, 20” Ispiri FFR6 / PS4s, AP Radical 6 pot brakes / 390mm floaters, Pagid RSL1, JL Audio, EMtuning headlight build, Gtechniq ceramic and Llumar PPF

Gone: Daytona B7 RS4 saloon

shinz
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Re: *wanted* How to discharge and remove DRC system

Post by shinz » Fri Nov 01, 2013 8:28 am

I also used the stasis instructions when I installed my KW lowering springs. I had a DRC leak sous plates and removed front struts completely to install. I also did adjustable upper control arms at same time - very worthwhile, I have done it twice now with the new SPC Motorsport version transforming the handling.
Anyway this is what I did.
Suspension install

Isolate DRC at rear of vehicle
Remove cowl trims under bonnet
Move coolant reservoir to side

Front strut removal
Remove each of the DRC lines as per bentley manual
Spray penetrate into nuts 2 days early.
Remove wheels
Remove pinch bolts on strut
Strap strut to hold in place or support on box
Remove ball joints from knuckle, maybe use chisel to open slot on knuckle or put punch under through holes and hammer upwards
Confirm distance btw ball joint on control arm and body x2
Remove lower strut bolt from lower control arm
Remove 3 bolts holding the strut plate to body - watch for washers on bolts
Remove retaining washer from locating stud on underside - pull down on top plate then push up again and destroy washer
Remove complete strut assembly fr vehicle, this may require removal of front sway bar.
Replace with stock RS4 sway bar - I had a stiffer bar on front but went back to softer std bar.

AUCA Install
Measure stock arms to strut plate
Video range of movement on stock arms when bolts loose
Remove and replace upper control arms one at a time
Adjust control arms to stock length
Longest arm should go to front of vehicle
Spin bolts opposite way
Make sure new control arms have same range of movement as stock arms
Set up arms at same distance as stock and as per bentley manual
Torque control arm bolts to 50Nm

Strut reinstall
Reinstall strut to vehicle
Install lower strut bolt and nut finger tight.
May need to jack up lower control arm to raise strut into correct position
Reinstall strut plate upper bolts and torque to 75Nm
Check correct measurements on control arm ball joints
Loosen and adjust as necessary then re torque to 50Nm
Adjust control arms to give expected camber adjustment
Insert control arm ball joints into knuckle joint, apply wd40 to ball joint ends or chisel open if reqd
Insert bolt and torque to 30 ftlb
Remove support strap or block
Install wheels
Place jack under wheel and raise to just support vehicle weight
Torque lower strut bolt to 90 Nm

Torque sway mounts 25nm
Reinstall front trim
Finish wheel well trims
Reinstall wheels
Torque sway bar 40nm +1/4 turn
Replace coolant tank
Replace engine bay trim

Fit ventilation discs to rear shocks
Replace rear springs
Open DRC valves
Replace rear under body trim
Replace wheelwell trims

I found the rear springs to be most painful, but Stasis method works.

Good luck, enjoy the feel of a tight car again in the curves.
Greg

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DaytonaRs4
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Re: *wanted* How to discharge and remove DRC system

Post by DaytonaRs4 » Sat Nov 02, 2013 9:38 am

thatnks for this info shinz, i fitted the kit yest at my mates garage, had a little drive last night and what a difference :) need to adjust the height's again today now that it has settled but do far so good..
2013 RS5 Phantom Black, MRC Stage 2 and TCU, Bilstein B16 IRC, 034 Arms, H&R ARB's, Milltek non res, ITG, 20” Ispiri FFR6 / PS4s, AP Radical 6 pot brakes / 390mm floaters, Pagid RSL1, JL Audio, EMtuning headlight build, Gtechniq ceramic and Llumar PPF

Gone: Daytona B7 RS4 saloon

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RS4JAY
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Re: *wanted* How to discharge and remove DRC system

Post by RS4JAY » Wed Oct 24, 2018 2:26 pm

Any updates on this gents? Thinking of doing this myself.
Current Toys -

B7 Audi RS4 Avant - Phantom Black
E92 DCT M3 LE500 - Imola Red
Navara NP300 Tekna
E36 BMW M3 Evo track Car - Cosmos Black

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FrazerD
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Location: Suffolk/Moray

Re: *wanted* How to discharge and remove DRC system

Post by FrazerD » Wed Oct 24, 2018 5:30 pm

Holy thread revival batman!

Cheers :thumbs:

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RS4JAY
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Re: *wanted* How to discharge and remove DRC system

Post by RS4JAY » Thu Oct 25, 2018 8:17 am

FrazerD wrote:
Wed Oct 24, 2018 5:30 pm
Holy thread revival batman!

Cheers :thumbs:
Google is to blame lol
Current Toys -

B7 Audi RS4 Avant - Phantom Black
E92 DCT M3 LE500 - Imola Red
Navara NP300 Tekna
E36 BMW M3 Evo track Car - Cosmos Black

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