NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
112 reportsClear category filter97,555 miles · Sep 9, 2011
Service Brakes, Hydraulic
THE ANTI LOCK BRAKE CONTROL MODULATOR UNIT FAILED, AND NOW I HAVE BRAKES THAT DO NOT WORK. AT THE SLIGHTEST PEDAL PRESSURE, ALL 4 WHEELS WILL HAVE A STRONG PULSATING, GIVING YOU ABOUT 1/3 OF THE BRAKING PRESSURE THAT IS NEEDED. VOLKSWAGENS USED A NEARLY IDENTICAL PART, AND THEIR ABS CONTROLLER IS UNDER RECALL, I DO NOT UNDERS…
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THE ANTI LOCK BRAKE CONTROL MODULATOR UNIT FAILED, AND NOW I HAVE BRAKES THAT DO NOT WORK. AT THE SLIGHTEST PEDAL PRESSURE, ALL 4 WHEELS WILL HAVE A STRONG PULSATING, GIVING YOU ABOUT 1/3 OF THE BRAKING PRESSURE THAT IS NEEDED. VOLKSWAGENS USED A NEARLY IDENTICAL PART, AND THEIR ABS CONTROLLER IS UNDER RECALL, I DO NOT UNDERSTAND WHY NHTSA, CANNOT FORCE AUDI OF AMERICA TO DO THE SAME. THANK YOU *TR
NHTSA ODI #10424468
133,500 miles · Sep 22, 2010
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 1998 AUDI A4. WHILE THE VEHICLE WAS PARKED, HE NOTICE THE ABS LIGHT WAS ON AND THE BRAKE LIGHT WAS FLASHING ON THE DASHBOARD. THE CONTACT STATED THAT HE WAS A MECHANIC AND TRIED TO SCAN INFORMATION FROM THE ABS MODULAR AND WAS UNABLE TOO. HE STATED HE WAS UNABLE TO REPAIR THE FAILURE. THE VEHICLE WAS PURCH…
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TL* THE CONTACT OWNS A 1998 AUDI A4. WHILE THE VEHICLE WAS PARKED, HE NOTICE THE ABS LIGHT WAS ON AND THE BRAKE LIGHT WAS FLASHING ON THE DASHBOARD. THE CONTACT STATED THAT HE WAS A MECHANIC AND TRIED TO SCAN INFORMATION FROM THE ABS MODULAR AND WAS UNABLE TOO. HE STATED HE WAS UNABLE TO REPAIR THE FAILURE. THE VEHICLE WAS PURCHASED USED SEPTEMBER 28, 2005. THE CONTACT PURCHASED THE VEHICLE USED WITH THE FAILURE. THE FAILURE MILEAGE WAS 133,500 AND THE CURRENT MILEAGE WAS 270,000.
NHTSA ODI #10356938
95,000 miles · Feb 8, 2010
EquipmentService Brakes, Hydraulic
THE ABS CONTROL UNIT ON MY AUDI A4 FAILED AFTER 95,000 MILES. I HAVE NO ANTI-LOCK BRAKING AND AUDI HAS DENIED ANY RESPONSIBILITY FOR THE PART SINCE IT IS OUT OF WARRANTY. SEARCHING THROUGH AUDI FORUMS I FOUND THIS FAILURE TO BE VERY COMMON AND EVERYONE HAD NO ABS UNTIL THE CONTROL UNIT WAS REPLACED WHICH COST AN AVERAGE OF $1500…
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THE ABS CONTROL UNIT ON MY AUDI A4 FAILED AFTER 95,000 MILES. I HAVE NO ANTI-LOCK BRAKING AND AUDI HAS DENIED ANY RESPONSIBILITY FOR THE PART SINCE IT IS OUT OF WARRANTY. SEARCHING THROUGH AUDI FORUMS I FOUND THIS FAILURE TO BE VERY COMMON AND EVERYONE HAD NO ABS UNTIL THE CONTROL UNIT WAS REPLACED WHICH COST AN AVERAGE OF $1500+. THERE WERE NO EVENTS THAT LEAD UP TO THE FAILURE, I STARTED THE CAR ONE DAY AND THE ABS AND BRAKE LIGHT STARTED FLASHING ON MY DASH. I TESTED THE ABS AND FOUND THAT IT INDEED DOES NOT PREVENT MY BRAKES FROM LOCKING UP. NEARLY THREE YEARS LATER, THE PART HAS NOT BEEN FIXED DUE TO THE HIGH COST TO REPAIR IT.
NHTSA ODI #10307355
114,788 miles · Sep 20, 2008
Service Brakes, Hydraulic
OUT OF NOWHERE, ABS LIGHT ON, BRAKE LIGHT FLASHING. TOOK TO SHOP, THEY STATED THIS IS A COMMON PROBLEM FOR THE ABS MODULE TO LOCK OUT COMMUNICATIONS; 1400 + FOR THE REPAIR. THIS IS AN EXPENSIVE CAR; I FIND IT OUTRAGEOUS THE ELECTRONIC MODULE IS OUTSIDE, SUBJECT TO WEATHER CONDITIONS AND SALT. PLEASE SEE MY COMPLAINT ON COIL S…
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OUT OF NOWHERE, ABS LIGHT ON, BRAKE LIGHT FLASHING. TOOK TO SHOP, THEY STATED THIS IS A COMMON PROBLEM FOR THE ABS MODULE TO LOCK OUT COMMUNICATIONS; 1400 + FOR THE REPAIR. THIS IS AN EXPENSIVE CAR; I FIND IT OUTRAGEOUS THE ELECTRONIC MODULE IS OUTSIDE, SUBJECT TO WEATHER CONDITIONS AND SALT. PLEASE SEE MY COMPLAINT ON COIL SPRINGS AS WELL. RESEARCHED THE PROBLEM ON THE INTERNET AND IT SEEMS THIS IS USUAL AND CUSTOMARY FOR THIS MODEL, I FEEL NHTSA NEEDS TO STEP UP HERE AND CALL AUDI ON THE TABLE. *TR
NHTSA ODI #10242985
130,000 miles · Jun 26, 2008
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 1998 AUDI A4. THE CONTACT NOTICED THAT THE ABS WARNING LIGHTS SPORADICALLY ILLUMINATED ON THE INSTRUMENT PANEL. THE DEALER STATED THAT THE ANTILOCK:CONTROL UNIT/MODULE FAILED, AND THE CONTACT WOULD BE RESPONSIBLE FOR THE REPAIR COSTS. THE COST WOULD EXCEED $1,100 BECAUSE THERE WAS NO RECALL FOR THAT COMP…
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TL*THE CONTACT OWNS A 1998 AUDI A4. THE CONTACT NOTICED THAT THE ABS WARNING LIGHTS SPORADICALLY ILLUMINATED ON THE INSTRUMENT PANEL. THE DEALER STATED THAT THE ANTILOCK:CONTROL UNIT/MODULE FAILED, AND THE CONTACT WOULD BE RESPONSIBLE FOR THE REPAIR COSTS. THE COST WOULD EXCEED $1,100 BECAUSE THERE WAS NO RECALL FOR THAT COMPONENT. THE VEHICLE HAS NOT BEEN REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 130,000.
NHTSA ODI #10232381
80,000 miles · Nov 14, 2006
Service Brakes, Hydraulic
ABS/BRAKE LIGHT JUST STARTED FLASHING. THE ABS BRAKES ARE NOT WORKING ABS MODULE IS THE CAUSE. UNDER HARD BRAKING OR WET CONDITIONS THE CAR SLIDES LOOSES TRACTION. OLD PART IS STILL IN CAR TO EXPENSIVE TO REPLACE RIGHT NOW. HAD CAR LOOKED AT BY CERTIFIED MECHANIC AND THEY TOLD ME ABS MODULE IS THE PROBLEM. *NM
NHTSA ODI #10173437
Mileage unknown · Aug 3, 2006
SeatsService Brakes, HydraulicVehicle Speed ControlInjury
1. HEATED SEAT BURNED THROUGH THE LEATHER BURNING THE BACK OF MY LEG WHEN ON THE LOWEST SETTING(1/6). 2. THE CRUISE CONTROL WORKS ABOUT 1% OF THE TIME AND WILL ENGAGE UNEXPECTEDLY IF NOT TURNED OFF. *JB
NHTSA ODI #10164350
82,500 miles · May 28, 2006
Service Brakes, Hydraulic
ABS COMPUTER OUT. FROM PEOPLE I HAVE TALKED TO IT'S A FREQUENT PROBLEM IN THESE CARS. IT IS QUITE EXPENSIVE TO REPLACE. *NM
NHTSA ODI #10158469
67,532 miles · Mar 14, 2006
Service Brakes, Hydraulic
THE ABS CONTROL UNIT ON MY AUDI A4 FAILED AFTER ONLY 67,000 MILES. I HAVE NO ANTI-LOCK BRAKING WHATSOEVER, AND AUDI HAS DENIED ANY RESPONSIBILITY FOR THE PART SINCE IT IS OUT OF WARRANTY. SEARCHING THROUGH AUDI FORUMS I FOUND THIS FAILURE TO BE VERY COMMON AND EVERYONE HAD NO ABS UNTIL THE CONTROL UNIT WAS REPLACED WHICH COST …
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THE ABS CONTROL UNIT ON MY AUDI A4 FAILED AFTER ONLY 67,000 MILES. I HAVE NO ANTI-LOCK BRAKING WHATSOEVER, AND AUDI HAS DENIED ANY RESPONSIBILITY FOR THE PART SINCE IT IS OUT OF WARRANTY. SEARCHING THROUGH AUDI FORUMS I FOUND THIS FAILURE TO BE VERY COMMON AND EVERYONE HAD NO ABS UNTIL THE CONTROL UNIT WAS REPLACED WHICH COST AN AVERAGE OF $1500+. THERE WERE NO EVENTS THAT LEAD UP TO THE FAILURE, I STARTED THE CAR ONE DAY AND THE ABS AND BRAKE LIGHT STARTED FLASHING ON MY DASH. I TESTED THE ABS ON AN ICY ROAD AND FOUND THAT IT INDEED DOES NOT PREVENT MY BRAKES FROM LOCKING UP.*JB
NHTSA ODI #10152664
Mileage unknown · Feb 28, 2006
Service Brakes, Hydraulic
FAILURE OF ABS MODULE, 1998 AUDI A4. *JB
NHTSA ODI #10151447
NHTSA investigations
5EA04017 · STUCK-OPEN Throttle
Opened Jun 30, 2004 · Closed Feb 10, 2005
Status: closed (inferred from source dates) · Fuel System, Gasoline:fuel Injection System
VWOA HAS RECALLED APPROXIMATELY 28,300 MY 1998-99 A6 VEHICLES IN COLD WEATHER STATES THAT EXPERIENCED THE HIGHEST RATE OF THROTTLE ICING INCIDENTS IN THE SUBJECT VEHICLES (04V-495).THE FAILURE RATE IN THE A4 AND PASSAT VEHICLES IS MUCH LOWER THAN IN THE RECALLED VEHICLES.ODI WILL CONTINUE TO MONITOR THE EXPERIENCE IN THE A4 AND PASSAT VEHICLES.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS FOR THE AUDI A4 OR VW PASSAT VEHICLES.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY A CHANGE IN CIRCUMSTANCES. FOR FURTHER DETAILS SEE THE ATTACHED CLOSING REPORT.
PE02008 · Brake And Clutch Pedal Bracket
Opened Jan 23, 2002 · Closed Jul 12, 2002
Status: closed (inferred from source dates) · Service Brakes, Hydraulic
No summary supplied.
EA00021 · Degraded Braking In Wet Weather
Opened Aug 11, 2000 · Closed Mar 29, 2002
Status: closed (inferred from source dates) · Service Brakes, Hydraulic
There is no summary currently available
PE00016 · Degraded Braking Wet Weather Condition
Opened Apr 4, 2000 · Closed Aug 11, 2000
Status: closed (inferred from source dates) · Electrical System
There is no summary currently available
RQ99008 · Power Brake Booster Vacuum BY-PASS
Opened Jun 1, 1999 · Closed Nov 14, 2000
Status: closed (inferred from source dates) · Service Brakes, Hydraulic
There is no summary currently available