Audi A7 ABS Pump ECU Repair Bosch 9.0 (4K0 907 379 P / 0 265 956 621)

SKU ABS6782

Common Faults:

C123EF0 – Hydraulic Brake Booster Limit Value Reached
C123EF0 – hydraulic brake servo limit reached
15381504 – Hydraulic Brake Boost
C123E FO – Limit Value Reached
261632 / P050F00 – Brake Boost Vacuum too Low

From £229.00

Fast Turnaround 2-5 working days

Warranty Protection Covering all our repairs

Choose your service

Repair Service (by post) Send us your unit — we repair and return it. Add to order and complete the quick vehicle form; free UK shipping label included. Send us your unit. We repair & return it. Free UK shipping label. £229.00 (Excl. 20% VAT)

Repair & Fitting (on-site) On-site removal & refit by our technician. Booked by phone only — call 01884 798090. Not available to order online. We remove, repair & refit the unit while you wait. Call 01884 798090 £379.00 (Excl. 20% VAT)

Service

Clear

★★★★★ “It’s good to have this gang on hand when it comes to gearbox electronics.” — Pawel P.

★★★★★ “Very professional , very prompt, well organised, thank you.” — Peter B.

★★★★★ “Good service on phone when ordering. Not able to say any more until part is fitted and see how it works!” — Eddie M.

★★★★★ “Had a part that was difficult to get hold of but they went the extra mile for a solution” — Johnathan M.

★★★★★ “Whole process of repairing my ABS module went smoothly without any issues. Staffs were friendly and professional. Will definitely use them again.” — zarif S.

★★★★★ “CU had great customer service and are very knowledgeable in what they do. Had a troublesome gear box mech which they sorted. Couldn't have been better to deal with. Highly recommend.” — Andy B.

Audi A7 ABS pump repair — Bosch 9.0 (4K0 907 379 P)

24-month warranty2–5 day turnaroundTracked return deliveryNo coding needed

We repair the Bosch 9.0 ABS pump and control module stamped 4K0 907 379 P, fitted to the Audi A7, restoring full braking and stability control. Check that number against the label on your own unit before ordering — the same pump is sold under several part numbers. Send us your original unit: we test it, replace the failed components on the circuit board and in the pump-motor circuit, then test it again under pressure before it goes back to you — usually within 2–5 working days. You get your own unit back rather than a replacement, so it keeps the coding and security data already matched to your car — no programming or dealer visit needed. Every electronic repair carries a 24-month warranty.

Which Audi models does this fit?

This repair covers the Bosch 9.0 ABS pump used in the A7, C8 (2018-present). Check your exact model and year under Matching Vehicles, or compare the number printed on your unit with the part numbers listed below. Not sure? Call 01884 798090 — the same hardware is used across many models.

Is the ABS pump really the problem?

Warning lights, a hard pedal, a pump that runs constantly or fluid not reaching a wheel all point this way, and stored codes usually confirm it. The symptoms and the fault codes we see on the Bosch 9.0 are listed under Common Faults. If your codes differ, send them over before ordering — if the unit turns out not to be faulty you only pay the test fee and postage.

Prefer not to remove the unit yourself?

Choose the on-site option and bring the vehicle to our workshop in Uffculme, Devon. We remove, repair and refit the unit, then road-test the car before you drive away — usually in 2–3 hours.

Frequently asked questions

Will the ABS light go out after the repair?

Yes, once the repaired unit is refitted and the stored codes are cleared, provided the fault was in the pump or module. If a wheel-speed sensor or wiring fault is also present, that has to be fixed separately — we tell you what we found with every repair.

Does the unit need coding or programming afterwards?

No. This is a repair, not an exchange — you get your original unit back, so it keeps the coding, VIN and security data already matched to your car. Refit it and clear the stored fault codes with a diagnostic tool. If brake lines were opened while removing the unit, the system also needs an ABS bleed with that tool.

How long will I be without the unit?

We aim to complete all repairs within 2–5 working days. Should a repair take longer, we will contact you with an update. Your unit is returned tracked with DHL Express or DPD. Ask about on-site fitting if you need the car back the same day.

My part number isn’t in the list — can you still help?

Usually yes. The same ABS hardware appears under many part numbers. Send us a photo of the label or call 01884 798090 and we’ll confirm before you send anything.

What warranty do I get?

All electronic repairs carry a 24-month warranty. See Returns & warranty for the full terms.

What customers say

★★★★★

They were very helpful on the phone and online, called me to tell me my unit was inoperable and a new unit was despatched straight away. Thank you.

Myrddin — Verified customer

★★★★★

ControlUnits were very helpful with my needs of repairing my ABS pump which had a fault — a speedy and professional service.

Karl — Verified customer

See all reviews on Google or on our REVIEWS.io profile — rated 4.9/5 from 400+ verified customers.

Common Faults

What are the symptoms of a failing Bosch 9.0 ABS pump?

ABS, traction-control or brake warning lights staying on
Hard brake pedal, or the pedal sinking under braking
Pump motor running constantly, or not running at all
Brake fluid not reaching one or more wheels
Speedometer or cruise control dropping out alongside the ABS light

Common fault codes

Fault code	Meaning
C123EF0	Hydraulic Brake Booster Limit Value Reached
C123EF0	hydraulic brake servo limit reached
15381504	Hydraulic Brake Boost
C123E	FO - Limit Value Reached
261632 / P050F00	Brake Boost Vacuum too Low

Seeing different codes, or not sure the ABS pump is the cause? Call 01884 798090 — we’ll check your codes and symptoms before you send anything.

Matching Vehicles

Make	Model	Years
Audi	A7	C8 (2018-present)

How It Works

Place your order online — add the service you need to your basket. Before the item is added we ask for your vehicle details and fault codes, so we know exactly what we are working on.
Send us your unit — securely packed, or ask us to arrange a collection (UK only).
We do our part — we test your unit first, then repair it, usually within 2–5 working days. If it turns out not to be faulty, you pay only the test fee and postage.
Tracked return delivery — by DHL Express or DPD, with payment taken once the work is complete.

On-site fitting — choose the on-site option and call us to book a slot. We remove, repair and refit the unit while you wait (usually 2–3 hours) and road-test the car before you drive away.

Need to know more? Call 01884 798090 or see How to order · Delivery pricing · Returns & warranty.

9am - 5pm

Audi A7 ABS Pump ECU Repair Bosch 9.0 (4K0 907 379 P / 0 265 956 621)