DRC versus pot hole

[neastev]

Hello all
Whilst overtaking on a dark country road last week at hit a pothole at a shade over the speed limit which has popped the rear passenger side copper washer at the DRC pipe. When I checked the fitting I found it finger tight hence the leak. Tightened up stopped the leak but now it needs charged. The car now............ can only be described as "interesting" when driven on anything but smooth road (2 ton water bed on wheels).

Given that the stealer service reception in Aberdeen said C5 RS6's dont have DRC I am doubtful it would get charged correctly.....

im going to have a go at it this weekend as I have access to the equipment I need from work....... also, liked the DRC as its suits the drive of the car.

heres the plan.....(found info on the forum)

use vacuum pump for all lines
Accumulator charge is 16 bar
Shockers should be precharged to 5 bar
VAG hyd fluid

Made up test fitting and have a pump that will do the job.......... if it doesnt work its coilovers

Does anyone know if this has been done before as there is obviously alot of DRc info on here but not much on how or if possible????

Have Unit 20 coilovers on my watch list on Ebay......

[bam_bam]

Hello all
Whilst overtaking on a dark country road last week at hit a pothole at a shade over the speed limit which has popped the rear passenger side copper washer at the DRC pipe. When I checked the fitting I found it finger tight hence the leak. Tightened up stopped the leak but now it needs charged. The car now............ can only be described as "interesting" when driven on anything but smooth road (2 ton water bed on wheels).

Given that the stealer service reception in Aberdeen said C5 RS6's dont have DRC I am doubtful it would get charged correctly.....

im going to have a go at it this weekend as I have access to the equipment I need from work....... also, liked the DRC as its suits the drive of the car.

heres the plan.....(found info on the forum)

use vacuum pump for all lines
Accumulator charge is 16 bar
Shockers should be precharged to 5 bar
VAG hyd fluid

Made up test fitting and have a pump that will do the job.......... if it doesnt work its coilovers

Does anyone know if this has been done before as there is obviously alot of DRc info on here but not much on how or if possible????

Have Unit 20 coilovers on my watch list on Ebay......

Subscribed!



This will be very interesting and I commend you!

[Shoppinit]

What have you got to lose? It's a pretty simple hydraulic system. Where did you get the 5 bar bit from? Looking at the procedure using the special Audi tool, it says to drain and refill the whole system in one go. I only skimmed through it though.

We will definitely need a photo shoot of this...

[bilko1]

I'm sure a Metro / MGF pump up machine will work

[Shoppinit]

Ask Chunky to get you a JCB hydraulic pump and reservoir to keep the pressure at 20 bar.

Or buy a Citroen BX

[neastev]

Yeah, metro pump would probably work.... Ebay maybe ...mmmm

if I have time I'll check the effect on pressure versus height, what pressure it starts to lift the car. could make a good RS allroad picture

[Mr Footlong]

Good luck sir! I do miss the feel of the DRC, when not broken. I could be imagining it but I swear to god I got far less body roll on it (kind of as you might expect with it shifting fluid to those shocks...)

[Shoppinit]

I think you're imagining it. I've compared a B7 (ss+) on DRC to mine on Bilsteins and I cannot tell the difference in terms of roll and comfort.

[swannny]

good luck mate, and keep us all posted of the results!

[chunky79]

Ask Chunky to get you a JCB hydraulic pump and reservoir to keep the pressure at 20 bar.

Or buy a Citroen BX

I can do that

[el_ringo]

If it doesn't work, Grizz has a DRC recharge gadget.

[bam_bam]

If it doesn't work, Grizz has a DRC recharge gadget.

TBF - that's just an attachment he fits over Amanda's mouth, there is silence for a couple of seconds then hey presto, DRC fully recharged and back up to pressure!

[el_ringo]

LOL!

[neastev]

Hello all

DRC been really pissing me off with all the clunking and banging over every bump, not to mention sea sick with the water bed effect..............took today off work to have a go.....
Car onto ramps and noted ride height

Disconnect pipe to OS front from accum and connected pump with gauge. No pressure as suspected.
Charged OS front shock to 5 bar which happened very quickly with minimal volume of oil which would suggest no air. Increased pressure to 20 bar again no change to ride height on OS front.
Reduced to 5 bar and disconnected QD coupling.
Fitted male coupling onto test pump and connected to accumulator again no pressure. Started charging and the pressure quickly reached 11 bar, then volume started going into the accum which proves gas pre charge is still present. Levelled out at 15 bar approx and slowly increased with more fluid until sudden pressure rise at 20 bar which is the accum maxed out. Vented pressure and estimated that approx 0.75 ltr volume in. Recharged to 16 bar. Rocked car with gauge fitted and pressure seen to fluctuate with movement as would be ex with front shock disconnected.
Remove test pump and gauge and reconnect QD couplings. Rocked car hold roof rails and full damping has returned.

Road test car and its back to its former glory with no noise and safe sure handling.

Took less than an hour start to finish and I never used the vacuum pump (took longer to get the fluid)

[Shoppinit]