GolfGTIforum.co.uk
Model specific boards => Golf mk3 => Topic started by: negawsklov on 16 February 2012, 11:12
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Hi folks, Car failed its MOT due to ABS light staying on and was told its the front right sensor which I've just finished replacing but no joy, stuck the car on my new diag machine and it advised me of the following..
Front right sensor fault
Front left sensor fault
Rear left Sensor fault
ABS pump fault
In turn the Air Bag light is always on and when the Air Bag system was scanned the fault code pointed back to the ABS again.
Any ideas?
Mike
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There is a pump fault there, so its quite possible the ECM on the abs unit has failed, could well cause fantom fault codes on the sensors too.
There was actually a recall many moons ago for failing pumps on the MK3, and indeed to this very day there still is on other makes for bosch units blowing brake pressure sensors.
Step 1, will be a new pump unit.
Step 2, clear codes, see whats remaining, you might find they all clear, or at least the sensor you replaced will clear
Step 3, replace any other failed sensors.
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May sound stupid but did you clear all the codes first then take it for a run?
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Only up and down the drive as MOT is out
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If you have cured the problem then you need to get it above 15mph to clear the abs warning light from the dash.
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Right i've deleted all the error codes and removed the airbag fuse and refitted it after 2 minutes. Air bag light now functioning correctly. Drove it down my road at 30 and ABS light still on but now the only codes showing are for the front drivers sensor and rear right sensor..
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Two new sensors it is then.
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fitted front right this morning
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If thats the case it will just be the sensors, not an uncommon complaint on the MK3, im sure lots would agree. :smiley:
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Strange seeing as I fitted a brand new front one this morning
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it is odd, was it dropped or hit at all? they are very sensitive. Could just be a fautly one, you never know. Does it say its the sensor open/short to ground? I know vag-com shows "mechanical failure" which is when the pulse ring is damaged/bent sort of thing. What diagnostics are you using, as it could be finding a general fault, but not telling you exactly what the fault is? Just a thought.
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Id say your ECU for the ABS pump is fooked
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you can test the resistance in the sensors fairly easy, that will count them off at least. vag-com etc is good but not perfect!
(there's a thread in the mk3 maintained section showing how to)
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Solution one: drive over speed bumps and brake quickly once over. This somehow helps.
Two-drive in the rain, and brake suddenly.
Three-blow air on the sensors
Four-just pray and tell the car you will scrapnor sell to someone.
Five-repalce abs unit and sensors
Six-disable abs systen.
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Six-disable abs systen.
Thank fook someone else said it.... i was thinking it....
I hate ABS I Cant do it myself brakes, as such they are disabled...... pull the fuse man, she'll sail the mot....
An safety wise, if you brake right you can still pull up just as fast as a car with abs working....
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Six-disable abs systen.
Thank fook someone else said it.... i was thinking it....
I hate ABS I Cant do it myself brakes, as such they are disabled...... pull the fuse man, she'll sail the mot....
An safety wise, if you brake right you can still pull up just as fast as a car with abs working....
Pull the fuse and it will FAIL the mot, not sail :rolleyes:
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Pull the fuse and it will FAIL the mot, not sail :rolleyes:
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Mines been through two mot's & never once has it even ever been mentioned....
both in different testing stations, & my brother's A3 is the same, for the last three years...
I just make sure the light doesnt come on at all,
(I'd just like to add that I'm not one of these that would sell it on without informing the potential buyer)
I know there where some testing ammendments that came into effect in febuary regarding saftey feature lights, but mine went through after those so assumed not much had changed i.e if it didnt light up it werent tested
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Not lighting up at all will fail now mate
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Not lighting up at all will fail now mate
This, MOT regulations have changed. As of 01/01/12 it will appear as an advisory if it does not light up, as of 01/04/12 it will be reason to fail.
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Six-disable abs systen.
Thank fook someone else said it.... i was thinking it....
I hate ABS I Cant do it myself brakes, as such they are disabled...... pull the fuse man, she'll sail the mot....
An safety wise, if you brake right you can still pull up just as fast as a car with abs working....
That is correct always has been plus with the abs disabled it will make the rear end very tail happy when braking as the load sense valve as such is built into the pump and not on the rear beam as non abs cars are replace the sensors and you should be ok if not pumps are easy to get hold of plenty being broken on here :)
Pull the fuse and it will FAIL the mot, not sail :rolleyes:
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Not lighting up at all will fail now mate
This, MOT regulations have changed. As of 01/01/12 it will appear as an advisory if it does not light up, as of 01/04/12 it will be reason to fail.
I seeeee.... I knew it was coming didn't realise it was in as mine went straight thru not an advisory in sight, looks like I'll continue to use my friendly tester then pmsl sod poncing around with it, it goes it stops an is in great condition, shall we pencil in a date for my failed on abs not working Thread January next year lmao
Cheers for the update boys!!
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Replace the ABS light unit with a non ABS / Airbag only unit. Jobs a goodun.
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yeah mine failed in november because the abs light came on...the dumbass who was doing the mot did not clear all the fault codes...apparently this is my responsibility..funny place..also came with lots of warnings that brakes are bad..blah blah blah...
my friend cleared the codes and then took the car back...guess what..no problems whatsoever...
i was joking when i said get rid of the abs...but the trick mentioned above is good..just switch for airbag...
soon they will fail the cars for having too old airbags...great...
the MOT system here is strange..they just need a light on and not know the reason for the failure and that's it...fail...
i'm lucky and my golf does not have abs.....on one of my volkswagens...the other one does have it...and that's why the car failed...
i feel for you...
don't go to halfords and just take it to someone who will take a look and tell you what needs changing....
the council mot place in guildfords is honest and will tell you exactly what is wrong...they don't do any repairs..so they aren't interested in making the car fail and will tell you what needs doing...the mot is full price...(around 53) but well worth it...
don't know if you have a council run mot near you..really the government should have more of them...
don't go to halfords..i don't trust them whatsoever.
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Thank fook someone else said it.... i was thinking it....
I hate ABS I Cant do it myself brakes, as such they are disabled...... pull the fuse man, she'll sail the mot....
An safety wise, if you brake right you can still pull up just as fast as a car with abs working....
few things,
1 you obviously never have had a car pull out on you or such like, i can gurentee you, abs or not, and if you think you can stop quicker on threshold braking, when some one or somehting jumps out in front of you, you will hit the brake as hard as you can, meaning your wheels would lock and you would skid much further then under abs control and itll happen so quick you wouldnt have enough time to think and react to come off the brake and reapply to the threshold before skidding again
2 abs will stop you quicker in the above circumstances, but on the other hand wont in a planned braking act, say for a hard corner took at speed due to the on and off braking. thus why racing cars etc dont/wont have abs
3 abs will give you the control to turn while having the brake pedel buried in the carpet. unlike non abs
and telling some one to disconnect it rather then have it fixed is rather foolish
few examples
http://www.youtube.com/watch?v=Mr4jC5vNxPk
(with out) http://www.youtube.com/watch?v=Q5JuhxTHUVY
(with) http://www.youtube.com/watch?v=Yq5qGDpSBz4&feature=endscreen&NR=1
not only that, when you lock your wheel the engine stalls, you have no engine braking, abs pumps fast so the engine also helps.
for me id much much rather have abs, for example doing 40mph down a lane, a car coming the other way going fast and nearly in middle of road round a corner, i brake and the inside wheel skids and locks so i nearly go in to the hedge and infact didnt even slow down much, with abs that wouldn't have happened and i could have also steered out if it did
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you could always study cadence braking (so much better than abs!)
and regards our MOT being strange, try getting an mot in most other european countries (many are every 2 years) but they are super strict (In france you get no advisories, it's pass or fail and even very minor things will fail!)
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you could always study cadence braking (so much better than abs!)
which goes out the window when a child, dog, or a person, or even say a car out a t junction,
i can gurentee you 100% you would lock your brakes and skid. you may say (in a sarcastic voice) no i can brake very skilfully.
but in those almost sudden circumstances you have no chance over non-abs
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Thank fook someone else said it.... i was thinking it....
I hate ABS I Cant do it myself brakes, as such they are disabled...... pull the fuse man, she'll sail the mot....
An safety wise, if you brake right you can still pull up just as fast as a car with abs working....
few things,
1 you obviously never have had a car pull out on you or such like, i can gurentee you, abs or not, and if you think you can stop quicker on threshold braking, when some one or somehting jumps out in front of you, you will hit the brake as hard as you can, meaning your wheels would lock and you would skid much further then under abs control and itll happen so quick you wouldnt have enough time to think and react to come off the brake and reapply to the threshold before skidding again
2 abs will stop you quicker in the above circumstances, but on the other hand wont in a planned braking act, say for a hard corner took at speed due to the on and off braking. thus why racing cars etc dont/wont have abs
3 abs will give you the control to turn while having the brake pedel buried in the carpet. unlike non abs
and telling some one to disconnect it rather then have it fixed is rather foolish
few examples
http://www.youtube.com/watch?v=Mr4jC5vNxPk
(with out) http://www.youtube.com/watch?v=Q5JuhxTHUVY
(with) http://www.youtube.com/watch?v=Yq5qGDpSBz4&feature=endscreen&NR=1
not only that, when you lock your wheel the engine stalls, you have no engine braking, abs pumps fast so the engine also helps.
for me id much much rather have abs, for example doing 40mph down a lane, a car coming the other way going fast and nearly in middle of road round a corner, i brake and the inside wheel skids and locks so i nearly go in to the hedge and infact didnt even slow down much, with abs that wouldn't have happened and i could have also steered out if it did
I can assure you 7 years of bike racing & 12 years of road riding & driving, I have probably had just about every concievable occourance on the road happen, especially while dispatch riding in london, I dont like driver aid for a reason, Ive never had any of them actually help me, only hinder..... especially the esp on the mk 5 gti that was wank!! Howeve the one place i do agree with you abs does belong on the lorry, if I had to brake up fast in the rigid & trailer on draw bar fully loaded I would definatley want help!! as much as possible, I make my claims as my own opinion, i didnt ask for a lecture, you wont change my mind, and you certainly dont know what i have and havent happend, just as i havent a clue about you... ta.
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I was meerly offering a means to get the op's car on the road with a years ticket & then he can resolve the problem when it suits him,
how is your post helping, especially when advising cornering with your foot buried in the carpet... abs or no abs thats going to land you in a ditch & shows that a driver is not reading the road ahead enough, braking should be done before the corner that way the suspension can deal with the cornering stresses alone not combined with braking forces thus causing loss of traction an vehicle stability......