|
S80 '98-'06 / S60 '00-'09 / V70 & XC70 '00-'07 General Forum for the P2-platform S60 / V70 / XC70 / S80 models |
Information |
|
Brake Pressure SensorsViews : 13361 Replies : 56Users Viewing This Thread : |
|
Thread Tools | Display Modes |
Oct 5th, 2015, 08:41 | #11 | |
Premier Member
Last Online: Oct 23rd, 2023 21:39
Join Date: Apr 2007
Location: EXETER
|
Quote:
As above, mine is temperamental too. The message has appeared randomly in the last 6 months, but within the last couple of weeks it's on more than it's off. It's typical of those types of switches; similar to an Amazon brake light switch which works sometimes when the switch is old!!
__________________
2006 XC70 D5 Manual 1968 Amazon Estate, B18A + Overdrive 2019 V60 D3 Momentum Pro Manual 1970 Amazon 2-Door 1970 142DL |
|
Oct 8th, 2015, 22:06 | #12 |
Junior Member
Last Online: Mar 19th, 2018 06:49
Join Date: Aug 2015
Location: Willerby, East Yorkshire.
|
The sensors are located on the brake lines behind the fuse box, the sensors are different to the pedal sensors, these are fluid pressure sensors.
They're mega bucks from Volvo so that's why I went for a used one. You can buy a lot of used sensors for the price of a new one
__________________
2008 V70 D5 SE 225000 Miles and counting 2005 V70 D5 SE 268,000 miles SOLD. |
Oct 8th, 2015, 22:40 | #13 |
bournricha
Last Online: Jan 10th, 2017 22:14
Join Date: Jan 2014
Location: oban
|
used parts
I so agree with Chris above .I nearly always use second hand parts .You can if you wish specify that the parts supplied should be Volvo original where it counts ,that way you get the reliability without the out of this world prices .The other week I had to get two of the big bearing carriers that carry the front wheels ,mine were wasted with alu .corrosion and the tester did not like them .Got them from specialist breakers via Parts Gateway and they arrived here in the Highlands ,48 hours later ,good as new and £30 each !I think I would have a coronary if I knew how much they were new !
__________________
1991 940 estate 2.3 125,000m.Under overhaul Previous convictions ;s70 ,855t5,745,v70, v70p2 |
Oct 8th, 2015, 22:49 | #14 | |
I've Been Banned
Last Online: Mar 19th, 2016 19:57
Join Date: Oct 2013
Location: Yondershire
|
Quote:
|
|
Jan 20th, 2016, 13:38 | #15 |
New Member
Last Online: Apr 13th, 2023 15:10
Join Date: Jan 2016
Location: Stockport
|
Brake Pressure Sensor DIY
Hi all Im new to the forum. Owned my 2010 XC90 D5 for nearly two years - superb car...until it goes wrong!
Just had a message on the dash telling me "anti skid service required". Got an Indi to plug into diagnostics and they said that there is internal faults in both 1&2 brake pressure sensors. A bit of browsing on the internet tells me the parts new are seriously expensive but second hand parts from a breaker are about £15ea! So question is how easy is it to replace? Looks like a screw off, screw back on job but will I have to bleed the system as well? When I take the current sensors off will that expose the brake lines to air? On the face of it looks like a simple job but am I underestimating the size of the task here? Thanks. |
Jan 20th, 2016, 15:45 | #16 |
Premier Member
Last Online: Oct 23rd, 2023 21:39
Join Date: Apr 2007
Location: EXETER
|
Simple! Seriously: dead easy.
Seems a bit odd that both pressure sensors are faulty, but so be it. You're correct; they are about £250 each new. I've not seen them for £15, but I paid £58 for 2 second hand ones incl postage. They seem to send out second hand parts together with the junctions. In fact, they cut the brake lines to save time. The simplest way is to unscrew the sensors using a deep 27mm socket. A tiniest amount of air could get into the system, so a full bleed afterwards is good advice. In a seperate thread on the same topic, I incuded a couple photos that might be useful to you: http://www.volvoforums.org.uk/showth...t=brake+sensor
__________________
2006 XC70 D5 Manual 1968 Amazon Estate, B18A + Overdrive 2019 V60 D3 Momentum Pro Manual 1970 Amazon 2-Door 1970 142DL Last edited by swedishandgerman; Jan 20th, 2016 at 15:50. |
Jan 21st, 2016, 12:15 | #17 |
GoldMember
Last Online: Apr 25th, 2024 22:46
Join Date: Jul 2010
Location: Kent, UK
|
pressure sensors
I did some checking into those pressure sensors, they put out a dc voltage relating to fluid pressure, and the bcm seems to compare the difference, so if your seeing the fault code it might not be complete failure of the sensor needing replacement. You can run a calibrate routine in vida that takes out small differences in the signal level that may fix things for some ppl. I did some long term logging of the outputs from them to get an idea how much they differed during use over time if anyone is interested !
|
The Following 3 Users Say Thank You to Thassos For This Useful Post: |
Jan 21st, 2016, 13:57 | #18 |
bournricha
Last Online: Jan 10th, 2017 22:14
Join Date: Jan 2014
Location: oban
|
For your parts you should go to Parts Gateway online and get used parts ,which are guaranteed .I got a brake position sensor from a breaker on there ,and, as a surprise to us both there proved to be two posibilities and i got the wrong one .Send it back ?Naw ,I,ll just send you another one foc .Total with postage ,a tenner i think .
Just don;t go down the new parts route .With Gateway ,parts are very cheap and guaranteed .You can't go wrong . On the codes ,you have to clear them and try again,to see if the fault is fixed .Any goodish generic reader will get you into abs (see diagnstics world )or get set up with Vida ,Volvo specific ,but tells you more than need to know probably .Order some pressure sensors from Gateway and save yourself a bomb . BUT, you must have a reasonable code reader of some sort for these cars .It is absolutely impossible to run them without and you will soon become an expert ,as ,believe me the will give you lots and lots........and lots of codes to read .I have just sold a phase 2 v70 ,because I just could not be a.......ed with these endless faults . Now as you see have got a 940 ,which is electronic, but not over the top like the phase 2.
__________________
1991 940 estate 2.3 125,000m.Under overhaul Previous convictions ;s70 ,855t5,745,v70, v70p2 |
The Following User Says Thank You to bournricha For This Useful Post: |
Jan 21st, 2016, 13:59 | #19 |
bournricha
Last Online: Jan 10th, 2017 22:14
Join Date: Jan 2014
Location: oban
|
pressure logging
Wow Thassos .Not many people will know that!!
__________________
1991 940 estate 2.3 125,000m.Under overhaul Previous convictions ;s70 ,855t5,745,v70, v70p2 |
The Following User Says Thank You to bournricha For This Useful Post: |
Jan 21st, 2016, 15:17 | #20 | |
Premier Member
Last Online: Oct 23rd, 2023 21:39
Join Date: Apr 2007
Location: EXETER
|
Quote:
__________________
2006 XC70 D5 Manual 1968 Amazon Estate, B18A + Overdrive 2019 V60 D3 Momentum Pro Manual 1970 Amazon 2-Door 1970 142DL |
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|