Audi A4 ABS Problems – Brake system fault

Audi ABS brake booster

Brake system fault stop carefully – this highly worrying message is currently plaguing later generation Audi’s especially the Audi A4 (B8 and B9 gen). During this failure there will be no emergency braking assistance from the ABS, leaving only standard braking in effect.

 

The ABS pump and module will store the fault code C123EF0 - Hydraulic Brake Booster Limit Value Reached and will cause the ABS warning light to become constantly illuminated.

 

We are seeing large numbers of these Bosch ABS units, across a range of Audi models, failing in this exact way. Owners are being told to replace the ABS pump at a huge expense to resolve this issue.

 

We have a better resolution – test and rebuild of your existing ABS pump and module, without the need for coding when you receive it back, complete with an unlimited mile Lifetime Warranty. Our in-house R&D team have developed a solution that can be carried out within 1-2 working days to get you back on the road as soon as possible.

 

Common Failure symptoms:

  • Brake warning on the dash: ‘Brake system fault stop carefully’
  • ABS warning light illuminated

 

Common fault codes:

  • C123EF0 - Hydraulic Brake Booster Limit Value Reached

 

Affected Vehicles:

 

 

 

 

(Can’t see your part number? Click on your vehicle model above to check our full ABS catalogue)

 

Test and rebuild:

We test every unit beyond the operating parameters of the vehicle so we know that once a unit is rebuilt it will outlast the vehicle, we only use higher rated than standard components during our rebuilds. Testing of the ABS unit is performed before and after the rebuild to ensure that it meets or exceeds the OEM specifications.

 

Programming:

All coding is retained – no need for expensive programming

 

Quality:

Our rebuild work is world renowned, franchise dealerships and specialists across the globe benefit from our services. Due to our strict quality control standards our work defect rate is lower than 0.6% on all our rebuilds, so you can be assured of our very high standard of work.

 

Warranty:

Lifetime unlimited mileage*

 

How do I get my unit rebuilt?

To pay for the rebuild select your part number above and then click: Get yours rebuilt

Print the payment/booking confirmation email.

Package the Audi ABS unit inside a sturdy box with plenty of packaging material (make sure you include your confirmation email in the box).

Send us your package by tracked courier (the shipping instructions are on the confirmation email).

Once received we will test, rebuild and return your ABS unit with an unlimited mileage lifetime warranty. (if your unit turns out not to be faulty then we will refund your payment less a small testing fee and return shipping)

 

What if I don’t want to pay up front?

This is not a problem, if you prefer this option then follow the following steps:

Fill in and submit this test form.

Print the booking confirmation email.

Package the Audi ABS pump and module inside a sturdy box with plenty of packaging material (make sure you include your confirmation email in the box).

Send us your package by tracked courier (the shipping instructions are on the confirmation email).

Once received, we will test your ABS and call you to advise on the outcome of testing, if your unit is faulty and you choose to go ahead with the rebuild then we will take payment over the phone using a debit/credit card.

We will then rebuild your ABS and return it to you with an unlimited mileage warranty.

If you require further information regarding this Audi ABS pump and module then please contact us.

Audi Products/Services

A1

A2

A3

A4

A5

A6

A6 ALLROAD

A7

A8

Q2

Q3

Q5

Q7

QUATTRO

R8

RS3

RS4

RS5

RS6

S3

S4

S5

S6

S8

SQ5

SQ7

TT

Comments on "Audi A4 ABS Problems – Brake system fault"
Marie Connolly says: 18/8/2021 10:54:19 AM
Fault code C123EFO Part no 8WO907379G
ECU Admin says: 19/8/2021 9:25:50 AM
Hi Marie, we can certainly help with that. Please click this link for further details: https://www.ecutesting.com/product-catalogue/audi/a4/abs-pump-ecumodule-combined/amc07379g/
Arron Jones says: 11/8/2021 3:03:29 PM
Hi, I have the Abs fault on my car, and I am wondering if I can get a ruff estimate of the cost to test/rebuild the unit Thanks Arron
ECU Admin says: 16/8/2021 11:34:12 AM
Hi Arron, for prices and shipping information please select your part number or vehicle above.
Leave a Comment All fields are required*