NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
28 reportsClear category filter112,000 miles · Mar 15, 2012
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 2001 AUDI A4. THE CONTACT STATED THAT THE ABS WARNING LIGHT WAS ILLUMINATED ON THE INSTRUMENT PANEL AND THE BRAKE WARNING LIGHT WAS FLASHING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSTICS WHERE THE MECHANIC ADVISED THE CONTACT THAT THE ECU MODULE WOULD HAVE TO BE REPLACED. THE VEHICLE …
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TL* THE CONTACT OWNS A 2001 AUDI A4. THE CONTACT STATED THAT THE ABS WARNING LIGHT WAS ILLUMINATED ON THE INSTRUMENT PANEL AND THE BRAKE WARNING LIGHT WAS FLASHING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSTICS WHERE THE MECHANIC ADVISED THE CONTACT THAT THE ECU MODULE WOULD HAVE TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 112,000.
NHTSA ODI #10451838
100,000 miles · Oct 4, 2011
Service Brakes, Hydraulic
ABS MODULE FAILURE. *TR
NHTSA ODI #10428427
105,000 miles · Aug 26, 2010
Service Brakes, Hydraulic
2001 AUDI A4 WITH ABOUT 105K MILES ON. ABS SENSOR IS FAULTY AND THIS PROBLEM IS VERY WIDESPREAD AMONGST AUDI A4S BUILT AROUND THIS TIME. IT IS A $1500 - $2000 REPAIR FOR A PART THAT REALLY DOESN'T SEEM TO GO BAD WITH THIS FREQUENCY IN OTHER CARS. FOR AN EXAMPLE OF THE SCORE, SEE THIS SITE. THIS IS JUST ONE OF MANY SITES WITH SIM…
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2001 AUDI A4 WITH ABOUT 105K MILES ON. ABS SENSOR IS FAULTY AND THIS PROBLEM IS VERY WIDESPREAD AMONGST AUDI A4S BUILT AROUND THIS TIME. IT IS A $1500 - $2000 REPAIR FOR A PART THAT REALLY DOESN'T SEEM TO GO BAD WITH THIS FREQUENCY IN OTHER CARS. FOR AN EXAMPLE OF THE SCORE, SEE THIS SITE. THIS IS JUST ONE OF MANY SITES WITH SIMILAR COMPLAINTS AROUND THIS ISSUE: HTTP://AUDI-VW-ABS-RECALL.BLOGSPOT.COM/2005/07/AUDI-AND-VW-PLEASE-RECALL-CARS-BETWEEN.HTML. *TR
NHTSA ODI #10352030
Mileage unknown · May 4, 2010
Service Brakes, Hydraulic
2001 AUDI A4 2.8 ABS BRAKE SYSTEM CONTROLLER FAILURE. *TR
NHTSA ODI #10328888
90,000 miles · Mar 7, 2010
Service Brakes, Hydraulic
ABS CONTROL MODULE FAILED. MODULES ARE DEFECTIVE AND AUDI SHOULD RECALL THEM. ONLINE RESEARCH SHOWS THOUSANDS OF AUDI/VW CAR OWNERS HAVE EXPERIENCED THIS SAME PROBLEM. COST TO REPLACE MODULE IS $1500-2000 DOLLARS. VW HAS ISSUED RECALL OF THIS ABS MODULE, BUT AUDI HAS NOT (EVEN THOUGH SAME EXACT PART). NHTSA NEEDS TO PUT PRES…
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ABS CONTROL MODULE FAILED. MODULES ARE DEFECTIVE AND AUDI SHOULD RECALL THEM. ONLINE RESEARCH SHOWS THOUSANDS OF AUDI/VW CAR OWNERS HAVE EXPERIENCED THIS SAME PROBLEM. COST TO REPLACE MODULE IS $1500-2000 DOLLARS. VW HAS ISSUED RECALL OF THIS ABS MODULE, BUT AUDI HAS NOT (EVEN THOUGH SAME EXACT PART). NHTSA NEEDS TO PUT PRESSURE ON AUDI TO RECALL THIS COMPONENT, THEY ARE DEFECTIVE, UNSAFE, AND COULD LEAD TO ACCIDENTS. *TR
NHTSA ODI #10317474
90,000 miles · Feb 22, 2010
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 2001 AUDI A4. HE STATED THAT THE ANTILOCK BREAKS SENSOR ILLUMINATES CONSTANTLY. HE HAD THE GARAGE REPLACED THE BREAK SENSOR TWICE. THE FIRST REPLACEMENT WAS DONE ON JANUARY 10, 2010 AND THE SECOND BREAK SENSOR REPLACEMENT WAS FEBRUARY 16, 2010 AND THE FAILURE WAS NOT CORRECTED. THE FAILURE MILEAGE WAS 90,…
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TL* THE CONTACT OWNS A 2001 AUDI A4. HE STATED THAT THE ANTILOCK BREAKS SENSOR ILLUMINATES CONSTANTLY. HE HAD THE GARAGE REPLACED THE BREAK SENSOR TWICE. THE FIRST REPLACEMENT WAS DONE ON JANUARY 10, 2010 AND THE SECOND BREAK SENSOR REPLACEMENT WAS FEBRUARY 16, 2010 AND THE FAILURE WAS NOT CORRECTED. THE FAILURE MILEAGE WAS 90,000 AND THE CURRENT MILEAGE WAS 102,034. HE HAS NOT CONTACTED THE DEALER OR MANUFACTURER.
NHTSA ODI #10312831
75,000 miles · Jan 8, 2010
Service Brakes, Hydraulic
1. ONE DAY SUDDENLY MY AUDI 2001 A4 STARTS TO SHOW ABS AND BRAKE LIGHT TO BE FAILING. 2. THE FAILURE WHEN DIAGNOSED SEEMS TO BE A PROBLEM WITH AUDI'S ABS CONTROL UNIT, AND THAT NEEDS TO BE REPAIRED. 3. I HAVE NOT REPAIRED IT YET, BECAUSE DEALERS QUOTED A HUGE PRICE OF MORE THAN 1500$ TO FIX THE ABS CONTROL UNIT. *TR
NHTSA ODI #10298769
43,000 miles · Jun 19, 2009
Service Brakes, Hydraulic
WHILE DRIVING IN SUBURBAN TRAFFIC, I NOTICED THE BRAKE PEDAL FULLY DRESS WHEN I ATTEMPTED TO SLOW FROM ABOUT 30 MPH. UPON SUBSEQUENT STOPS, THERE WAS A METAL ON METAL SOUND. UPON INSPECTION, THE RIGHT FRONT OUTER PAD HAD COMPLETELY DETACHED FROM BACKING PLATE. THE CAR WAS INSPECTED BY AUDI ONLY 3K MILES EARLIER AND THERE WAS NO …
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WHILE DRIVING IN SUBURBAN TRAFFIC, I NOTICED THE BRAKE PEDAL FULLY DRESS WHEN I ATTEMPTED TO SLOW FROM ABOUT 30 MPH. UPON SUBSEQUENT STOPS, THERE WAS A METAL ON METAL SOUND. UPON INSPECTION, THE RIGHT FRONT OUTER PAD HAD COMPLETELY DETACHED FROM BACKING PLATE. THE CAR WAS INSPECTED BY AUDI ONLY 3K MILES EARLIER AND THERE WAS NO INDICATION OF BRAKE PAD WEAR. NEITHER THE DEALER NOR AUDI WOULD ACKNOWLEDGE OR ACCEPT RESPONSIBILITY. *TR
NHTSA ODI #10274334
38,500 miles · Aug 20, 2006
Service Brakes, Hydraulic
I WAS CHASING A BRAKE SQUEAL. WHEN I REMOVED THE FRONT PADS ON OUR AUDI A4, (2001), THREE OF THE FOUR PADS WERE NOT ATTACHED TO THEIR BACKING PLATES. THESE WERE THE ORIGINAL ATE PADS; THE CAR HAS TRAVELED ABOUT 38000 MILES. *JB
NHTSA ODI #10166053
Mileage unknown · Dec 9, 2005
Service Brakes, Hydraulic
AUDI HAS FAULTY AUTOMATIC BRAKING SYSTEM CONTROLLER UNITS. THEIR 1998 - 2002 UNITS HAVE A VERY HIGH INCIDENCE OF FAILURE IN THE ELECTRONICS COMPONENT. THEY HAVE DONE A RECALL FOR THE EXACT SAME PART FOR THE VW JETTA, BUT NOT FOR THE AUDI'S. THEY REQUIRE $1,700 TO REPAIR IT, SO MANY PEOPLE LEAVE IT AS IS, WHICH IS UNSAFE. *NM
NHTSA ODI #10144848
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