ABS problem.

Martin1972 · 2nd March 2016, 08:41

Any advice pre - garage visit is welcome.

Brakes make grinding noise and feel rough on the pedal until the ABS warning light comes on, at which point they feel fine again.

I've been told that it could be an ABS ring inside the wheel bearing that needs replaced?

awvc1 · 2nd March 2016, 14:07

could be as simple as the sensor. i would guess you won't know until that is elimnated. i have one car that had that very same symptom, until the speedo stopped working and the abs light came on permanently. brake were fine after that mind you.

i also have a 2nd car now with a speedo that is temperamental for some reason.

so it looks like its all turning out fine again

Mike Noc · 2nd March 2016, 15:56

If you are handy with a multimeter you can diagnose the vast majority of ABS faults without the help of a garage.

Plenty of info on the site if you do a search - this is a recent thread:

http://www.the75andztclub.co.uk/foru...d.php?t=235640

DMGRS · 2nd March 2016, 22:34

In my experience, this is usually a sensor.
I get asked every day to diagnose ABS issues via email, and after pointing people towards the guides it's usually a sensor.

We have front and rear sensors here:
Front ABS Sensor - 75/ZT
Rear ABS Sensor - 75/ZT

Barry99 · 18th March 2016, 14:11

Quote:

Originally Posted by Martin1972

Any advice pre - garage visit is welcome.

Brakes make grinding noise and feel rough on the pedal until the ABS warning light comes on, at which point they feel fine again.

I've been told that it could be an ABS ring inside the wheel bearing that needs replaced?

Did you sort you brakes out as mine have done the same , when braking at low speed shudder on the pedal ,,, now ABS light come in and brakes are fine

Martin1972 · 18th March 2016, 15:15

They seem OK now... But I replaced both front bearings and three ABS sensors before it was sorted. The mechanic was really frustrated!

There remains a bit of roughness when I push the brake pedal beyond halfway, so I'm not counting any fowl just yet...

DMGRS · 18th March 2016, 15:52

If it still has the same problem but to a much lesser degree, this is usually because one sensor won't be sat *quite* deep enough in its mounting hole - usually due to a bit of surface corrosion where it's bolted down.

First 75 had this issue.

Martin1972 · 19th March 2016, 18:23

Quote:

Originally Posted by DMGRS

If it still has the same problem but to a much lesser degree, this is usually because one sensor won't be sat *quite* deep enough in its mounting hole - usually due to a bit of surface corrosion where it's bolted down.

First 75 had this issue.

Cheers for that... Is it a case of cleaning up the corroded area?

2nd March 2016, 08:41	#1
Martin1972 Avid contributor Rover 75 Saloon Join Date: Sep 2015 Location: Burntisland Posts: 201 Thanks: 320 Thanked 61 Times in 28 Posts	ABS problem. Any advice pre - garage visit is welcome. Brakes make grinding noise and feel rough on the pedal until the ABS warning light comes on, at which point they feel fine again. I've been told that it could be an ABS ring inside the wheel bearing that needs replaced?

2nd March 2016, 14:07	#2
awvc1 Posted a thing or two Rover 75 Saloon Join Date: Jan 2015 Location: Essex Posts: 1,177 Thanks: 221 Thanked 258 Times in 196 Posts	could be as simple as the sensor. i would guess you won't know until that is elimnated. i have one car that had that very same symptom, until the speedo stopped working and the abs light came on permanently. brake were fine after that mind you. i also have a 2nd car now with a speedo that is temperamental for some reason. so it looks like its all turning out fine again __________________ White Gold ConnSE, 2003 Mods: FBH Revotec Fan Inline 'stat Xenon lights + washers BMW MK4 satnav, clock mod, BT ulf, 16:9 screen & TV upgraded BM54 + BT Aux-in Miracast box Glasses holder Flip Key Spyhole +Jules plenum shield PPD - badges,rear plinth, carpeted heater panels, anchor bolts, reflectors Walnut Dash, handbrake+gearshift Twin Horns Drivers cupholder HK Speakers Chrome bullet mirrors Digital speedo LED interior bulbs Resler interface USB charging sockets x2

2nd March 2016, 22:34	#4
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	In my experience, this is usually a sensor. I get asked every day to diagnose ABS issues via email, and after pointing people towards the guides it's usually a sensor. We have front and rear sensors here: Front ABS Sensor - 75/ZT Rear ABS Sensor - 75/ZT __________________ 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

18th March 2016, 15:52	#7
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	If it still has the same problem but to a much lesser degree, this is usually because one sensor won't be sat quite deep enough in its mounting hole - usually due to a bit of surface corrosion where it's bolted down. First 75 had this issue. __________________ 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

2nd March 2016, 15:56	#3
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: 11,548 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	If you are handy with a multimeter you can diagnose the vast majority of ABS faults without the help of a garage. Plenty of info on the site if you do a search - this is a recent thread: http://www.the75andztclub.co.uk/foru...d.php?t=235640

18th March 2016, 15:15	#6
Martin1972 Avid contributor Rover 75 Saloon Join Date: Sep 2015 Location: Burntisland Posts: 201 Thanks: 320 Thanked 61 Times in 28 Posts	They seem OK now... But I replaced both front bearings and three ABS sensors before it was sorted. The mechanic was really frustrated! There remains a bit of roughness when I push the brake pedal beyond halfway, so I'm not counting any fowl just yet...