ASC is always on ? |
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venomousXFROG
Advanced Newbie Joined: 21-September-2008 Location: Dublin ,Clondalkin Status: Offline Points: 26 |
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Posted: 17-August-2009 at 19:22 |
My ASC is constantly on , when i press the button nothing happens , this is bogging down the car big time !
Anyone any ideas + does anyone recommend a good mechanic in the Dublin area ? any specialist who will know exactly what causing this ?
thanks for any info ! |
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Drive it like you stole it
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Andrew Rolland
Moderator Group Go away rain Joined: 19-August-2004 Location: Scotland Status: Offline Points: 6579 |
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What kinda BMW is it? For example in the E39.... The ASC is on all the time until you switch it off by a single press of the ASC button. On pressing this button to switch it off this lights up the yellow triangle on the dash board. you will still have some degree of traction control on, even though you think it is off. Holding the button down for 10 seconds switches it off properly and again the yellow light on the dash lights up but your wheel spins/arse hanging out will be untamed completely. If the light is on permantly on the dash it means there is a fault with the unit. The ASC can be quite tempramental and if there is a fault the light will come on. When the ASC kicks in to arrest wheelspin the light will come on. If the light isn't on and you haven't switched it off are you sure you aren't just giving it too much beans? If there is a fault with the system plugging into a diagnostic machine is the only way to tell what is exactly wrong.
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Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto |
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Dergside
Really Senior Member II Joined: 16-May-2004 Location: Mid West, Ireland Status: Offline Points: 4000 |
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The problem is most likely a dodgy ABS sensor, not a big job. It should show up on a read of the diags. AC Car Sales just off the SCR is highly regarded by many on here. |
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venomousXFROG
Advanced Newbie Joined: 21-September-2008 Location: Dublin ,Clondalkin Status: Offline Points: 26 |
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thanks for the tip ! i will make an appointment to see them later this week .
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Drive it like you stole it
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T.J.
Bavarian-Board Contributor Joined: 22-September-2003 Location: Cork, Ireland Status: Offline Points: 2332 |
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Andrew - in my E39 push the botton & the light comes on, but if you keep it pushed after 10sec the light extinguishes again & you're on your own.
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Andrew Rolland
Moderator Group Go away rain Joined: 19-August-2004 Location: Scotland Status: Offline Points: 6579 |
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Thinking about it, I can't remember now. I stand corrected.
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Be exclusive and drive a Petrol 5 Series!
Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto |
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Ben O Brien
Really Senior Member II Joined: 12-August-2004 Location: Limerick,Ireland Status: Offline Points: 1205 |
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Same deal with the DSC in my M5 TJ??? |
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Mike Ryan
Senior Member I Joined: 17-February-2008 Location: Limerick Status: Offline Points: 120 |
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Check the cable that goes to each wheel ABS sensor for damage especially at each front wheel. It is close to the inside of each tyre. It can get frayed or cut if you happened to pick up a bramble or stick that travelled between the wheel and the strut. I had this problem on an E39. ABS sensors are available on Ebay. If its on Ebay it must be selling. If its selling it must be a common failure.
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devo11
Groupie Joined: 21-August-2008 Location: Dublin Status: Offline Points: 81 |
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hi, had this excact problem about 6 months ago when my younger brother took a lend of my car he finally admitted he turned it of and then gave the car some stick and the light wouldnt go out.my problem was the same as yours now. brought it to a garage it was a faulty ABS SENSOR 100%.got a new left 1 fitted and hey presto it work.dont pay for a diagnostic check they cost around 60 euro to do alone.go the cheapest way and go to a half descent garage and say to them i think one of my abs sensors is gone can you have a look and wait and see what they say.but if i had the same problem as you and mine was the abs sensor due to flashing the car and if you where doing the same then it has to be the abs sensor goodluck with it and let us know how you get on devo11 |
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Andrew Rolland
Moderator Group Go away rain Joined: 19-August-2004 Location: Scotland Status: Offline Points: 6579 |
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Yeah but the only way to tell if a sensor is gone is to do a diagnostic check, so the garage will do a diagnostic check and charge you for it. A faulty sensor does not have a different electrical resistance to a working one. The only way you (diy) can check each sensor is to check for a broken wire between the two plug holes in the socket that is in each wheel arch...after of course removing each wheel in turn and un plugging the sensor from the loom. But you would be lucky if it is a broken wore causing your fault. |
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Be exclusive and drive a Petrol 5 Series!
Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto |
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venomousXFROG
Advanced Newbie Joined: 21-September-2008 Location: Dublin ,Clondalkin Status: Offline Points: 26 |
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Thanks lads for the info. I still haven got this sorted , but im going to try ebay I had AC cars check it out the other day , they said it was the ASC/ABS Motorpump ? ? I was charged 50eurfor the diagnostics , that included the forum member discount and it took 10mins to find the problem some Polish lad told me it was 150-180eur for a 2nd hand part + 85 an hour for labour , think ill get one of those ABS Sensors of Ebay and see how that works out .
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Drive it like you stole it
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beemerchris
Really Senior Member I Joined: 08-December-2006 Location: Dublin city Status: Offline Points: 388 |
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Don't think they said sensor but pump? That is the black - metally part in the engine compartment says ABS in my car and the two I have here to work on at the mo but not sure yours will say the same. You can get one from the likes of FAB in the Uk. Be carfull with e-bay china fakes as you don't wanna mess with brake parts. If you do the job yourself then you need a pressure bleeder, WD40 for the bleed nipple, prayers that non of the nipple will sheer of, a good ring spanner for the nipples and more prayers..... alot of tea and a Haynes/Bentley manual. HTH Edited by beemerchris |
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Chris
3rock-Car-Electronics-Services Cars.: e34 540t 6sp e24 635csi |
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