13 replies to this topic

[theolodian]

Does anyone know of a cheap Tech2 eBay cable thingie that will let me put the ABS into that special mode so that the brakes can be bled? Trust me, there is air in the ABS. Cheers.

[techieboy]

Nope, nothing supports doing it. Other than the full TECH-2 (and I'm still not sure about that) or the Lotus equivalent.

[Nev]

My ABS is so sh**, I wish someone would/could make up a safe kit to completely extract it from the car. It must weigh a bit too and is completely useless, in fact brakeing feel might be improved without it in the chain of parts.

[Boombang]

OT but the ABS on my VX220 was terrible until I rebuilt the calipers. Amount of dust that came out was amazing, and everything about the brakes improved - modulation, ABS not kicking in as much (and working well when it did!), and didn't pull to either side.

[techieboy]

I don't really have too many problems with the standard ABS but recently had Hofmanns refurbish my calipers and they do feel much happier for having been done. I guess 9 years and 70000 miles had taken their toll.

[slindborg]

Nev, you could just use the ABS bypass/divertor block that some poverty spec MK4 astras and povstery spec Corsa C's had... Hmmmm perhaps I could do with rebuilding my calipers... tum tee tum

[Duncan VXR]

Theo as confirmed - no tech 2 or nothing. I have the exige abs unit which def is better but also noticed another improvement when I rebuilt the calipers front and back, and bleeding within an inch of its life. Never bled the abs unit but would like to - just to know DG

[theolodian]

I had another thought, maybe I need to drop the back end. All of the body hard lines were dry. There are a couple of high points that might have air bubbles. I could do that and try to bleed air out of the fittings at the ABS unit and see how that goes. I talked to the local Vauxhall dealer. They had a massive recall on ABS units for other cars a while back. Didn't have to use the Tech2 for those, and it wasn't jsut the controller on the top it was the full unit.

[SteveA]

Mine was like this you need to trigger the ABS on the road then bleed. Repeat the procedure at least 3 times and it will get all the air out.

[theolodian]

Mine was like this you need to trigger the ABS on the road then bleed. Repeat the procedure at least 3 times and it will get all the air out.

Yeah, that's not going to happen!

Hmmm, maybe I can do it in the air . . .

[SteveA]

Invert the calipers and take Leona Lewis' advice, keep bleedin, keep, keep bleedin

[techieboy]

Remove one of the rear disks and then try the brakes. That's got to fool the ABS sensors into thinking that something is amiss with the wheel speeds and triggering. Or run the car whilst it's up on axle stands and jump on the brakes - it'll presumably think the fronts are skidding due to no wheel speed pulses. By the way, I accept no liability whatsoever for any of the above, should you be nuts enough to try it!

[SteveA]

Don't do what Techie says, it will just pop the piston out and chuck brake fluid everywhere. Invert, put back on then bleed. Edit - the running on axel stands won't help either unless you have the 4 channel ABS module. Even with the 4 channel module it will think your abs is duff and turn the light on, it won't trigger it.

Edited by SteveA, 20 April 2010 - 04:02 PM.

[techieboy]

See, the plan needs refining. Could stick a block of wood in the rear caliper to stop the piston coming out but still don't know whether that would trigger the ABS.