1998 Audi A4 service brakes, hydraulic problems

“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”

“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.”

“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.”

“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”

“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.”

“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”