gingergman Posted March 23, 2013 Share Posted March 23, 2013 Mk4 xr3i, been bleeding the brakes today and the offside front and near side rear won't bleed properly, no matter how much you do it air is still a problem, also, there is enough fluid to work the brakes but you can apply them and the two won't do anything, nothing at all. now after a bit of google'n its aparent that its a diagonal system so there is a problem somewhere! I have had the two things off in the drivers side of the engine bay, think possibly there compensators, dunno if they have anything to do with it, im kinda stuck with it. ANY help needed lol, Cheers. Link to comment Share on other sites More sharing options...
allblue Posted March 23, 2013 Share Posted March 23, 2013 Hi Stu, Are you using a pressure bleeding kit? With the affected circuit, maybe try changing the bleed sequence. I.e. Do the nearside rear first then the offisde front. Then visa versa. This may help to flush out any air lock. Link to comment Share on other sites More sharing options...
gingergman Posted March 23, 2013 Author Share Posted March 23, 2013 Hey mate, yeah used a bleed kit ran off a compressor, but that didn't seem to be very effective so went back to the old fashioned way and that was better. I'm going to have a proper look next time, just strange how the brakes won't work at all either. Do you know what the two cylinder things in the engine Bay are called/for? Link to comment Share on other sites More sharing options...
RScab Posted March 23, 2013 Share Posted March 23, 2013 There pressure regulating Valves Stu you could have a duff 1 but could also be ya Master cylinder do the easiest first - regulating valve Link to comment Share on other sites More sharing options...
gingergman Posted March 23, 2013 Author Share Posted March 23, 2013 Ah thank you, yeah think I'll change the valve, I've got the parts anyway so not an issue, just another annoying problem after problem lol Link to comment Share on other sites More sharing options...
Guest JOHN-WRIGHT Posted March 25, 2013 Share Posted March 25, 2013 Just a thought, is your car one of the rare ones with Abs fitted? If so then they can be an arse to bleed as there is a complex procedure for doing it and also the rear suspension needs to be under load when doing it because of the load apportioning valves. All the best Link to comment Share on other sites More sharing options...
gingergman Posted March 25, 2013 Author Share Posted March 25, 2013 Na it doesn't have abs, its not just the bleeding its the fact they won't work lol, no movement at all on those two ! Link to comment Share on other sites More sharing options...
LeeMcCarthy Posted April 19, 2013 Share Posted April 19, 2013 How did you get on stu? Link to comment Share on other sites More sharing options...
gingergman Posted April 19, 2013 Author Share Posted April 19, 2013 Still no joy, I've changed both pressure regulators and the master cylinder, front kind of stopped, possible ok after a bleed, as for the rear, not a thing! Got a new cylinder to put on the rear tomoz in the hope the old one is siezed. Can't be arsed in general with it at the mo, runs sweet bit few annoying things to sort Link to comment Share on other sites More sharing options...
gingergman Posted April 22, 2013 Author Share Posted April 22, 2013 changed the rear cylinder this morning, now the rear works! could see the old one was seized when i took it off. now just hope they bleed ok and after they actually all work! will report back when its done. Link to comment Share on other sites More sharing options...
gingergman Posted April 28, 2013 Author Share Posted April 28, 2013 bled them all again today and at last they work! So was the master cylinder and rear wheel cylinder. One thing crossed of the list lol Link to comment Share on other sites More sharing options...
RScab Posted April 29, 2013 Share Posted April 29, 2013 Can't believe you never checked the cylinders first Stu lol Link to comment Share on other sites More sharing options...
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