Huge brake issues. ABS pump at fault? - Page 2

trikey · 14th November 2023, 12:35

Quote:

Originally Posted by Arctic

Hi Matt.
Seeing where you live and we all know whom lives in the same area, if he was still live on the club, i am sure he would have sorted this out for for you without any doubt. MB

Might be worth trying to contact him some how? but right at the moment Josh idea sounds good, maybe the garage have flipped the seal if so they need to check and put it right surely.

And just like shining Batman's searchlight...

MB is on the case and will be calling shortly....

SD1too · 14th November 2023, 14:18

Hello again Mats,

The correct bleeding sequence specified by MGR to which I was referring is:

NSR
OSR
NSF
OSF

You do not need a T4 or any other diagnostic equipment to bleed the brakes (source: MG Rover Workshop Manual, Service Procedures).
The system has to be fail safe; in other words if a fault were to develop in the modulator, brake fluid must pass through it normally and unhindered. It follows from that that it is not necessary or desirable to activate any pumps or valves within the modulator during bleeding.

Simon

Arctic · 14th November 2023, 23:57

Quote:

Originally Posted by trikey

And just like shining Batman's searchlight...

MB is on the case and will be calling shortly....

Hi Andy.
Thank you for the info

also great news for the OP

Mike Noc · 15th November 2023, 07:56

If the brakes were working when you drive it in and they aren't now then chances are it is something that the garage has done to cause the problem. How can the pipes be dry when fresh fluid displaces the old fluid when brakes are bled properly? Can you get the car trailered to a garage that knows what they are doing?

Mats · 11th December 2023, 13:01

I managed to get the car to John @ MGR MOT & Auto Services in Blaydon and he sorted me out.

Faulty ABS module and he changed the master brake cylinder.

Again, not quite sure how it all came about but glad it got sorted!

SD1too · 11th December 2023, 15:35

Quote:

Originally Posted by Mats

Faulty ABS module and he changed the master brake cylinder.

Wow, that must have cost you.

It's strange isn't it how you had no ABS warning light yet the modulator apparently was faulty which happened to coincide with your garage bleeding the brakes.

Simon

DMGRS · 15th December 2023, 15:09

Interesting - I had similar on my first 45, which was down to a faulty Master Cylinder.
The brakes in these cars are twin circuit - meaning opposite corners are paired together for safety reasons.
Sounds like one of the circuits has failed (usually a Master Cylinder seal) - but glad it's all sorted now.

14th November 2023, 14:18	#12
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,382 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Hello again Mats, The correct bleeding sequence specified by MGR to which I was referring is: NSR OSR NSF OSF You do not need a T4 or any other diagnostic equipment to bleed the brakes (source: MG Rover Workshop Manual, Service Procedures). The system has to be fail safe; in other words if a fault were to develop in the modulator, brake fluid must pass through it normally and unhindered. It follows from that that it is not necessary or desirable to activate any pumps or valves within the modulator during bleeding. Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

15th December 2023, 15:09	#17
DMGRS Discount MG Rover Spares Rover 75 CDTi, 2x MG ZS180 Join Date: Jun 2011 Location: Hythe, Southampton Posts: 11,320 Thanks: 456 Thanked 3,377 Times in 2,027 Posts	Interesting - I had similar on my first 45, which was down to a faulty Master Cylinder. The brakes in these cars are twin circuit - meaning opposite corners are paired together for safety reasons. Sounds like one of the circuits has failed (usually a Master Cylinder seal) - but glad it's all sorted now. __________________ Your trusted MG Rover specialist! Tel: 02380 001133 / Email: [email protected] We now have a 'chat' function on our site for even quicker replies. Give it a try! Remember - discount code FORUM5 for 5% off

15th November 2023, 07:56	#14
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,550 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	If the brakes were working when you drive it in and they aren't now then chances are it is something that the garage has done to cause the problem. How can the pipes be dry when fresh fluid displaces the old fluid when brakes are bled properly? Can you get the car trailered to a garage that knows what they are doing?

11th December 2023, 13:01	#15
Mats Avid contributor Rover 75 CDTi 2.0 Auto Join Date: Mar 2015 Location: Newcastle upon Tyne Posts: 190 Thanks: 46 Thanked 26 Times in 17 Posts	I managed to get the car to John @ MGR MOT & Auto Services in Blaydon and he sorted me out. Faulty ABS module and he changed the master brake cylinder. Again, not quite sure how it all came about but glad it got sorted!