GTR32 Posted March 29, 2007 Report Share Posted March 29, 2007 Does anyone know the correct order for bleeding the brakes on a MKIV R32? Is there a correct order? Does it really matter? Does anyone care? Link to comment Share on other sites More sharing options...
dogbucket Posted March 29, 2007 Report Share Posted March 29, 2007 To quote from the Bentley manual Bleeding sequence 1 - Right rear caliper 2 - Left rear caliper 3 - Right front caliper 4 - Left front caliper BUT When at least one chamber in the brake fluid reservoir is completely empty (e.g. leaks in braking system) the hydraulic unit must be bled with scan tool VAG 1551 in function "basic setting". I think basically you have to use Vagcom to operate the ABS pump to remove the air from it. Link to comment Share on other sites More sharing options...
Mook Posted March 29, 2007 Report Share Posted March 29, 2007 The rule for bleeding the brakes on any car is to do the one furthest away from the master cylinder first, working towards the closest. The Bentley manual is written for left hand drive cars (where the master cylinder is on the left, in front of the driver, hence the order, so you should really do rear nearside, rear offside, front nearside, front offside. Link to comment Share on other sites More sharing options...
dogbucket Posted March 29, 2007 Report Share Posted March 29, 2007 good point, I had not considered that Link to comment Share on other sites More sharing options...
Daemon Posted March 29, 2007 Report Share Posted March 29, 2007 The information posted above is incorrect. The MkIV R32 has the ITT Mark 60 IE ABS system and Bentley says that the bleed order for that is Left front Right front Left rear Right rear. Basically nearest to farthest. The bleed order posted earlier is for the ITT Mark 20 IE System. ian Link to comment Share on other sites More sharing options...
Gti_Fly Posted March 29, 2007 Report Share Posted March 29, 2007 I've also read that the R32 must be bled from NEAREST to FURTHEST, So on our UK cars, that means, Drivers Front Passenger Front Drivers Rear Passenger Rear I followed a detailed guide when I did mine, which I'll post up later. I bought a 1 litre can of Oil from VW, and found that I actually had more than enough oil to do the 4 calipers. so I by the time I did the last brake caliper, and I went round and re-bled the front driver's brake caliper Link to comment Share on other sites More sharing options...
Gti_Fly Posted March 29, 2007 Report Share Posted March 29, 2007 http://www.billswebspace.com/R32BrakeandClutchPressureBleedingProcedureBYAnthony.pdf Thats the link that I used for information. Taken from a link on bill's R32 website Pls take note, because american cars are LHD, they say bleed from front left first. UK cars need to be bleed from front RIGHT first! (becuase the master cylinder is always on the drivers side!) Basically rule of thumb with R32 is, bleed closest to farthest Link to comment Share on other sites More sharing options...
Gti_Fly Posted March 29, 2007 Report Share Posted March 29, 2007 [ QUOTE ] The information posted above is incorrect. The MkIV R32 has the ITT Mark 60 IE ABS system and Bentley says that the bleed order for that is Left front Right front Left rear Right rear. Basically nearest to farthest. The bleed order posted earlier is for the ITT Mark 20 IE System. ian [/ QUOTE ] Just to reply to Ian, UK car's being RHD, the master cylinder is also on the Right (not the left like in USA cars), so the order is right, left, right, left Link to comment Share on other sites More sharing options...
GTR32 Posted March 29, 2007 Author Report Share Posted March 29, 2007 Thanks guys. I had read the artical on BILLSWEBSAPCE by Anthony and actually got hold of him in hope that he would know for sure....he didn't. Logic would say, for a RHD car, to do it like Gti Fly says - right, left, right, left moving from front to back. Does anyone know for sure? Does it really make any difference? I have never seen a Bently manual - is there not one for RHD cars or is it a US only thing? Link to comment Share on other sites More sharing options...
petsy Posted March 29, 2007 Report Share Posted March 29, 2007 [ QUOTE ] I bought a 1 litre can of Oil from VW, and found that I actually had more than enough oil to do the 4 calipers. [/ QUOTE ] shouldn't you use brake fluid?? Link to comment Share on other sites More sharing options...
Gti_Fly Posted March 29, 2007 Report Share Posted March 29, 2007 [ QUOTE ] [ QUOTE ] I bought a 1 litre can of Oil from VW, and found that I actually had more than enough oil to do the 4 calipers. [/ QUOTE ] shouldn't you use brake fluid?? [/ QUOTE ] Yeh VW Dot4 brake fluid. The old fluid that came out was brownish in colour (only a year old), and the new fluid was a very very clear yellow. Other than that, there was no sign of air bubbles, but did see small floating bits of debris. Glad I changed the fluid Link to comment Share on other sites More sharing options...
dogbucket Posted March 30, 2007 Report Share Posted March 30, 2007 I think I will stay out these technical things in future then Link to comment Share on other sites More sharing options...
Snoopy Posted March 30, 2007 Report Share Posted March 30, 2007 [ QUOTE ] The old fluid that came out was brownish in colour... but did see small floating bits of debris. [/ QUOTE ] Check your rear flexy brake pipes are not bulging as the rear pipes on mk4s have been known to be faulty. Link to comment Share on other sites More sharing options...
mattcony Posted March 31, 2007 Report Share Posted March 31, 2007 Don’t know if you just intend to flush the system or actually drain it and do some work, but I fitted stainless braided lines and replaced all the rubber one's on my Mk4 some time ago + replaced with race fluid After you have done the 4 callipers’ there is then a 5th nipple on the master cylinder, this is quite hard to get to but if you don’t do that one also you will never get full brake pressure back into the system. Just a tip cheers Matt Link to comment Share on other sites More sharing options...
petsy Posted March 31, 2007 Report Share Posted March 31, 2007 Matt, did you think the ss lines improved the pedal feel much? Link to comment Share on other sites More sharing options...
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