Brake Antilock Control Unit/module Problems of Audi A4 - part 1

Audi A4 owners have reported 36 problems related to brake antilock control unit/module (under the service brakes category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Audi A4 based on all problems reported for the A4.

car image   Brake Antilock Control Unit/module problem of the 1998 Audi A4 1
Failure Date: 06/02/2008

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.

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car image   Brake Antilock Control Unit/module problem of the 1999 Audi A4 2
Failure Date: 01/21/2008

Abs module failure @ 108,000 mi. Unit rebuilt at approx cost of $1,000.

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car image   Brake Antilock Control Unit/module problem of the 1998 Audi A4 3
Failure Date: 09/06/2006

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.

car image   Brake Antilock Control Unit/module problem of the 2000 Audi A4 4
Failure Date: 03/20/2006

Antilock braking system failing at 80k miles. Increasing the risk for rear brakes to lock up the wheels possibly causing vehicle to spin out under heavy braking.

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car image   Brake Antilock Control Unit/module problem of the 1998 Audi A4 5
Failure Date: 02/05/2006

My abs light started blinking in my 1998 Audi A4. I went to a mechanic and had it diagnosed; found that it was a light failure; I was told I would have to pay a lot of money to pull out the electronics and most likely not even solve the problem. Later I started to notice that my abs was not engaging properly and sometimes not at all (which is now the case), I filed complaints with Audi and boshe about this but they told me there could be no recall because abs is not a traffic concern. Recently I was driving in the rain and making a 98 degree turn not terribly fast; there was no stop sign, and I ended up doing a 360 to a stop. I found this not only a scary experience, but one that could have been life threatening. It didn't make sense; im driving the honorable quattro. I decided to look further. I found many people have the same problem. Specifically w/ models in 1998. Im a fairly good driver in fact I did a defensive driving class at infineon raceway so I was still confused how I lost so much traction in such a short amount of time. I found the problem was actually part of the quattro itself. The electronic braking, traction systems, and various other vehicle dynamic systems are all dependent on the abs control module. All the test up to then showed no link to abs control unit; I was made to believe that my car just had a light failure. I started researching the control unit and I found that there is already a recall on the part but not for Audi but for Volkswagen! the campaign id number is 02v031000. I talked to people who were owners of volkswagens who got the recall and many of them had almost identical problems to mine. Some even said the unit caught fire. So here I am told I have a light problem, then told Audi cant do anything for me except get a whole new abs system at my expense. Now I find the truth is one control module is responsible for the lack of control in my car as well as a possible car fire. Please help: I and many others need a new unit.

car image   Brake Antilock Control Unit/module problem of the 1998 Audi A4 6
Failure Date: 01/01/2006

Failure of abs module, 1998 Audi A4.

car image   Brake Antilock Control Unit/module problem of the 1999 Audi A4 7
Failure Date: 11/02/2005

Iã‚m an owner of a 1999 Audi A4 quattro with the 2. 8 engine; the VIN of the vehicle is waued28d0xa238672; the vehicle has 101,845 miles. I was having the following issue; at about 100,000 miles the abs and brake warning lights would come on indicating and abs failure. This would occur after the car is completely warmed up. I did some checking and discovered that there is problem with abs control unit. I further investigated this issue and also discovered that this is a known and common problem with 1996-2001 Audi A4s. Volkswagen jettas and passats of the same year, that utilize the same system, had/have the same problem; it came to my attention that Volkswagen conducted a national recall campaign to address this problem. I was wondering why Audi has not handled this problem in the same manner. I donã‚t think Audi owners should be expected pay to fix a clearly manufacturers defect, and a safety component at that! I contact Audi customer service to get a reaction from them; the reference number is 804031021. I wrote a detailed letter to mr. Johan denysschen executive vice president Audi north America; he in turn passed the letter to one of the Audi regional managers annette johnson. The regional manager had indicated that the issue should be diagnosed by an authorized Audi service center (Audi dealer). Her tone was very helpful; however she has indicated that there have not been enough complaints to constitute a recall. Furthermore, they do not consider the abs failure as a safety issue since they regard the system as a driverã‚s aide. Additionally she could not find any records that showed volkswagens being recalled for the same issue. I eventually got a problem fixed at a smaller shop, which cost me around $600. 00 dollars. The dealer was going to over charge me on the part by $400. 00 and 6. 5 hours of labor at $105. 00 per hour for a job that actually took only 1. 5 hours.

car image   Brake Antilock Control Unit/module problem of the 1998 Audi A4 8
Failure Date: 09/28/2005

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.

car image   Brake Antilock Control Unit/module problem of the 2000 Audi A4 9
Failure Date: 08/28/2005

Earlier model Audi A4 autos have a very common problem related to the failure of the abs control module. Failure to repair immediately at a cost of up to $3000 (if Audi can find parts) will result in rear wheel lockup and potential loss of vehicle control. Audi warns/admits of this in its owners manual.

car image   Brake Antilock Control Unit/module problem of the 2000 Audi A4 10
Failure Date: 08/15/2005

Abs control module failure. Searched forums and info boards and it's a very common problem.

car image   Brake Antilock Control Unit/module problem of the 1999 Audi A4 11
Failure Date: 08/15/2005

Audi A4 the abs light, brake light and warning buzzer stay on while driving the vehicle. Brought car to dealer and was told the abs module is defective. Audi said it was not their problem because the brakes still function though not the way they were designed to work. I pray that I do not hurt anyone while I'm relearning to drive my car without the abs system functioning.

car image   Brake Antilock Control Unit/module problem of the 1999 Audi A4 12
Failure Date: 08/01/2005

1999 Audi A4 quarto 1. 8t. The consumer states the abs control module is defective. When driving the abs light and brake light would come on. This has been happening for the past month. The vehicle wa staken to the dealership and they indicated the abs module had to be replaced.

car image   Brake Antilock Control Unit/module problem of the 1998 Audi A4 13
Failure Date: 07/08/2005

Abs control modules (bosch 5. 3) on all early model 98-01 Audi A4 and it's sister car the vw passat 98-01 will and do fail at some point. Control module is completely inoperative most times while driving. May start working sporadically and then quit again. Common problem on forums (audiworld. Com). I have been a vw / Audi technician for 7 years now and have seen several of these. Would be nice to know that this safety feature is going to work when needed. Vw / Audi is aware of the problem and has just released a technical bulletin alerting that the control module may now be purchased separately from the hydraulic unit. This control module at my cost (considerable discount since I work for the company) is $1495. 00. Please help myself and other Audi / vw owners get our cars stopping safely.

car image   Brake Antilock Control Unit/module problem of the 1998 Audi A4 14
Failure Date: 07/06/2005

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.

car image   Brake Antilock Control Unit/module problem of the 2000 Audi A4 15
Failure Date: 06/14/2005

I experienced failure of abs in a 2000 Audi A4 avant quattro. This is the well-known and widely reported problem with the bosch 5. 3 abs control module unit. The unit spontaneously failed without any reason, at about 80k miles. The consequences are the abs does not work and the part to replace it is about $1500. I have yet to replace or repair it at this point, hoping vw/Audi will do something about it (a recall would be nice).

car image   Brake Antilock Control Unit/module problem of the 1998 Audi A4 16
Failure Date: 06/01/2005

1998 Audi A4 2. 8 quattro abs control module, part# 8e06141111m or n VIN: waued28d0wa171053. Controls the anti-lock braking feature. I have encountered many other people that have had the same defect at various mileage points, even random Audi A4 owners that I have met in person. It nearly caused accident on 2 occassions as brakes locked-up prematurely. Part is being repaired.

car image   Brake Antilock Control Unit/module problem of the 2000 Audi A4 17
Failure Date: 05/25/2005

Abs module failing and or loosing communication.

car image   Brake Antilock Control Unit/module problem of the 1998 Audi A4 18
Failure Date: 05/24/2005

Abs and brake warning lights are illuminated on the dash. Took it to a dealer and was told there was no communication with the abs controller. Dealer wanted $2600 for parts plus $450 (3 hrs) to replace. Vehicle only has 51000 miles!.

car image   Brake Antilock Control Unit/module problem of the 1998 Audi A4 19
Failure Date: 05/07/2005

Abs light comes on intermittently and abs system is not functional. Abs system also used in electronic differential control. Audi dealer diagnosed as a abs control unit failure with part cost of $2600 plus labor and was repaired by Audi dealer. Contacted Audi customer care and they did not offer any assistance. This is a very real safety issue and based on internet searches has affected hundreds of Audi and vw vehicles. This appears to be a faulty design of a critical safety component and warrants further investigation.

car image   Brake Antilock Control Unit/module problem of the 2001 Audi A4 20
Failure Date: 05/04/2005

I'd like to file a complant for a faulty vehicle component on my 2001 Audi A4 (mileage: 30,000 miles). The abs and brake warning lights are coming on simultaneously. I've been reading a lot of similar complaints on the internet (that's how I found this site). Dealer says there's a "fault code in the abs control module". . . And wants $1500 (!) to repair it. The abs unit should not be failing as frequently as it seems to be in this car. For a $1500 component to malfunction when it's rarely actuated is beyond comprehension. The TSB should force Audi to perform a recall and/or compensate customers for this outrageous problem.

See all problems of the 2001 Audi A4 icon-go-page.

car image   Brake Antilock Control Unit/module problem of the 2000 Audi A4 21
Failure Date: 04/27/2005

Abs light is on, and brake light is blinking. I took the car to the dealer and I was told my abs module is faulty. After looking at the forums online it seems that this is a defect that thousands of Audi/vw owners are getting. Cost of repair is very high. Why isn't there a recall yet???.

car image   Brake Antilock Control Unit/module problem of the 1998 Audi A4 22
Failure Date: 04/12/2005

Abs light and blinking brake light came on intermittently after 55800 miles. Diagnosed as (possibly) a bad abs control module. Also told it could be a bad instrument panel. Cost of $2200 quoted for abs control module replacement with no guarantee that it would solve the problem. As a result abs control module not replaced reducing safety of vehicle.

car image   Brake Antilock Control Unit/module problem of the 1999 Audi A4 23
Failure Date: 03/10/2005

The abs control module failed on a 1999 Audi A4; the dealer tells me it is not covered under warranty, and I must pay $1662. 39 plus tax to repair.

car image   Brake Antilock Control Unit/module problem of the 1999 Audi A4 24
Failure Date: 02/15/2005

Our 1999. 5 Audi avant quattro VIN #waugd28d7xa213020 has passed 80,000 miles. The antilock brake system (abs) controller has failed causing intermittant failure of the abs system. The result is inconsistant and dangerous handling of the vehicle in low traction conditions -- the very conditions Audi quattros are purchased for! repair of the system is in excess of 25% of the value of the market car. A search of several internet Audi sites revealed that this is a common problem with many current Audi models. Audi of America refuses to fix this problem under recall.

car image   Brake Antilock Control Unit/module problem of the 1998 Audi A4 25
Failure Date: 02/14/2005

Abs light illuminated while driving 35 mph. Vehicle was taken to the dealer, wh informed the consumer that the abs brake module needed to be replaced.


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