ABS Module Lab
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Bosch

Bosch ABS / ESP 5.3 ABS module repair

Your Bosch 5.3 module back working and coded to your vehicle — repaired from $499, or replaced with a refurbished Bosch 5.3 carrying your data from $950.

A Bosch hydraulic unit — pump motor and valve block — with the electronic control unit mounted on the valve block. We bench the control unit: power, ground and communication, the pump-motor and valve driver circuits, and the internal connections between the board and the valve coils.

Order a replacement with my data — from $950 →

Vehicles that use the Bosch 5.3

From the sources linked on each vehicle page. Confirm with the part number on your module's label.

Audi

Volkswagen

Known part numbers in this family

Match the number on your module's label. Each one links to where it was found.

Show all 18 part numbers

Signs the Bosch 5.3 module itself has failed

  • ●ABS, traction and stability warning lights on together
  • ●Scan tool cannot talk to the ABS module (no communication / U-codes in other modules)
  • ●Pump-motor or valve (solenoid) circuit codes that return after clearing
  • ●Intermittent faults that come and go with temperature or bumps
  • ●Wheel-speed signal codes on more than one wheel at once

What to ship for a Bosch 5.3

The control unit is mounted on the valve block. On many units it unbolts, so the brake lines stay on — send us a photo if you are not sure.

Replacement units

No advance exchange: your original module has to reach the bench first, because your vehicle’s data (VIN, coding and configuration) is read out of it and written into the refurbished unit. That is what lets the refurbished module install like your own.

Our promise

Can’t be repaired? You don’t pay for a repair.

If the bench finds your module past repair, we stop and tell you before doing anything else. Then you choose:

  1. 1A replacement — a refurbished unit of the same family with your VIN, coding and configuration cloned onto it, from $950. You pay only the difference from what you already paid, and we confirm the amount with you first.
  2. 2Your module back — with the repair price refunded, minus shipping costs.

Either way, nothing that changes your price happens without your OK.

Refund stages in our terms →

ABS light on? Fix the module you already own.

Look up your part number and order online — we email you a prepaid label to our lab. Or send us a photo of the label and your VIN first, and we'll tell you what you have and what it costs.

Back with your VIN and coding · can’t be repaired? repair price back, minus shipping · 1-year warranty · rush 2–3 days +$100

Start My RepairLook Up My Part Number

Call (817) 505-4201 · 📱 Text us a photo of the module label · Ask first — send a label photo · Email repairs@absmodulelab.com

Repair From $499

Start My Repair