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#1
09-03-2010, 11:02 AM
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Brake,ABS & DSC warning light and TRANS FAILSAFE PROG message
whilst travelling back from holiday 3 warning lights came on which were ABS & DSC according to manual, a few miles on and TRANS.FAILSAFE.PROG message appeared at which point I could only use 4th gear I beleive this is a result of a sensor failure, has anyone experienced this any is it an easy repair or expensive dealer Job!! many thanks Darren 
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#2
09-03-2010, 04:55 PM
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do a quick search on DSC/ ABS in the forum, some of us have had this problem, with good results...Hint _ have it scanned, its cheaper on the long run.
Good luck
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#3
09-03-2010, 09:58 PM
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This is most likely a weak battery or bad alternator. Check you battery.
__________________
_________________________________________________ 2010 X5M /// R63 AMG...Wifey's 540HP Family Hualer 2001 X5 3.0i Sport 335,448 miles & counting... SMG M3 Steering wheel E46 Stainless Racing Headers 4.6is Exhaust Turner Pulleys Afe Intake Brembo drilled rotors PowerFlex Bushings Hualingan 30mm H&R Spacers rear 20mm H&R Spacers front Bavarian Autosport High-Performance Coils Active Autowerke's Performance Software
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#4
09-03-2010, 10:17 PM
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If your red battery light happened to come on while driving right before this then you're luck enough to just replace your alternator... Otherwise, have all the codes read and analyzed/diagnosed by the dealer as it should be treated as if it were a check engine light. Too many things that can cause it to even begin to guess.
__________________
"When you do things right, people won't be sure you've done anything at all" (Bender, futurama) You make something idiotproof, they'll make a better idiot You think professional is expensive, just wait until you pay for amateur. Never let your sense of morals prevent you from doing what is right. Examine what is said, not who speaks. X5 pics RIP 4.6is..... 2003 4.6is 
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#6
11-07-2010, 09:31 AM
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The red battery light is really a charging system light. It comes on while the engine is running if the charging voltage drops below a certain threshold or the diodes start going and it see's too much AC voltage.
__________________
"When you do things right, people won't be sure you've done anything at all" (Bender, futurama) You make something idiotproof, they'll make a better idiot You think professional is expensive, just wait until you pay for amateur. Never let your sense of morals prevent you from doing what is right. Examine what is said, not who speaks. X5 pics RIP 4.6is..... 2003 4.6is
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#7
11-07-2010, 04:36 PM
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Gotcha thanks. Mine came on while driving home yesterday, and within 10 minutes of it coming all all systems started to fail, DSC, trans failsafe, airbags etc. My alt was replaced in 2007, guess it's gone again.
Thx
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#8
11-25-2010, 06:56 AM
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ABS/TRANSFAILSAFE
Had a guy look at problem, his diagnostic pointed to offside rear wheel sensor £99.00 from main dealer, did not cure problem so went into an ex BMW mechanics garage. He has suggested the ECU or ABS unit which is £1000 from main dealer or £375 from Parts (Bosche unit same a main dealer!!) unfortunately out of stock till Dec10th
Would be interested to know if your dianosis was the Alternator? Darren
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#9
11-26-2010, 03:14 PM
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Mine was the return pump in the ABS hydraulic module, I had replaced the DSC electronic module , coded it and it ran OK for about a week. Once scanned the return pump came up as the only fault. The GT1 test of the pump passes 2 out of 3 times. I have not installed the replacement yet, The car is at the paint shop,( Teenager rear-ended the wife at a red light). I`ll let you know how it turns out...
__________________
 1979 320i/6 w/ m20 engine /5 speed  2001 X5 4.4i w/Sports Package  1998 M3 w/HR springs / Bilstein Sport struts 1994 735i Black w/black interior (sold) 1986 528e Black w/ black interior (sold) 1985 325e 4dr (sold)
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#10
11-26-2010, 05:10 PM
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Quote:
If you have the original battery I would look at replacing it before continuing more diagnostic. Its due regardless.
__________________
2002 X5 4.6 Sold Dinan CAI, TB, Mass Air, Stage 4 engine & tranny software, X-pipe 2004 745Li 1997 Ford Mustang Cobra Vert 1985 Mazda RX-7 13B-REW single turbo 60-1, Haltech, Meth injection, MSD Ignition, and much more 2008 Mazda Speed3 Hypertech Tune   
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