Audi A4 ABS Problems – Brake system fault

The ‘brake system stop carefully’ diagnostic instrument cluster message is becoming an increasingly common occurrence for later generation Audi models – especially the B8 and B9 generation A4. This message frequently stems from a common ABS unit fault – in this scenario there will be no emergency braking assistance, leaving only standard braking in effect.

Shop Now – Audi A4 Brake System Fault Solution

The ABS module will also store the fault code C123EF0 - Hydraulic Brake Booster Limit Value Reached which will cause the ABS warning light to illuminate.

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

We have a better resolution – a test and rebuild of your existing ABS pump and module, without the need for coding when you receive it back, complete with an unlimited-mileage lifetime warranty. Our in-house R&D team have developed a solution that can be carried out within 2-3 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

(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 0.49% 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 click the Shop Now link above, select your part number and click: Get yours rebuilt.

Print the payment/booking confirmation email.

Package the Audi ABS unit inside a sturdy box with plenty of packaging material and 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 these 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 and 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 to inform you of 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 unit 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.