I have been bleeding brakes on all kinds of cars. I have always used to method to find and work your way down from the brake with the longest brake line. On most left hand drives that is usually the right rear. But you always better check the routing of the actual brake lines to verify.

Yesterday I gave my 2002 X308 a regular service and it was also time to flush the brake system. As I was also going to check the brake components for wear, I was checking the worksop manual for measurements. I happened to see the Jaguar recommended way of doing it. Which by the looks of it, means starting at the shortest brake line, left front and work your way up to the longest one!

Anybody any insights as to why Jaguar does it different from most? I did do the flush yesterday, using this procedure and it went fine. I did have one missing dust cap on the left front calliper and sure enough that one was completely blocked. So check your bleed dust caps now and then!

Jeroen

 

Possibly something to do with the ABS unit. The manual provides one same procedure for both, LHD and RHD cars, so it appears that the procedure is related to the ABS location which is at the LHS on both versions.

In the case of non-ABS cars, I don't think it really matters which way you go. I have done it (by my own "logic") shortest-longest on quite a number of my cars over the years with no problem at all. At some point, I read that it should be longest-shortest so I corrected my logic.

 

Not to hijack your thread Jeroen, but was just thinking about this as I intend to flush my system today - Any difference with the Brembo brakes other than having two bleeders per caliper? Interesting that they hve you go front to back, I have always done back to front on every car I've ever owned and never had an issue. I suppose as long as you bleed them properly you could do it any way you choose?

 

I don’t think the Brembo brakes are any different other than the two bleeders per callipers.

In theory you could do any sequence, in practice some brake systems are difficult when it comes to bleeding. The correct sequence might help a bit I think.
Good luck with the flush. Let us know if you encounter anything strange.
Jeroen

 

I was in a bit of a rush to get the car back together so it could go to the alignment shop and didnt have a chance to bleed. I'll be sure to post back if I run into anything odd with the Brembos when I get around to it, hopefully next weekend.

 

Just to complete the information on BREMBO brake bleeding procedure, here's the relevant JTIS extract:










Graham

 

Perfect, thank you! So outer bleeders first, that's helpful.