Audi A7 Electric Steering Rack Repair & Reconditioning
Audi A7 RHD Electric Steering Rack Specialists
Pro Power Steering diagnoses, repairs and reconditions Audi A7 electric steering racks for private customers, garages, workshops and trade partners across the UK. We can assess the original unit or identify a suitable replacement from the VIN and rack label.
Audi A7 Generations and Steering Rack Changes
4G / C7 — 2010–2018
Shares families with A6 C7 but specification and software still require VIN checks.
4K / C8 — 2018–present
Later rack, electronics and calibration process.
Audi A7 RHD Part Numbers and Rack Families
These complete references are identification guides collected from specialist catalogues. A shared base number does not prove interchangeability: confirm every character on the original label, the VIN, right-hand-drive specification, connector count, PR code and software before supply or fitting.
A7 4G/C7 non-dynamic RHD references
4G2 423 055 B; 4G2 423 055 F; 4G2 423 055 G; 4G2 423 055 J; 4G2 423 055 L; 4G2 423 055 N; 4G2 423 055 P; 4G2 423 055 Q; 4G2 423 055 AA; 4G2 423 055 AB; 4G2 423 055 AH; 4G2 423 055 AN; 4G2 423 055 AR; 4G2 423 055 BD; 4G2 423 055 BE; 4G2 423 055 BM; 4G2 423 055 BN; 4G2 423 055 CR; 4G2 423 055 DD; 4G2 423 055 DE; 4G2 423 055 DP; 4G2 423 055 GD.
A7 4G/C7 dynamic and alternative references
4G2 423 055 T; 4G2 423 055 AC; 4G2 423 055 AT; 4G2 423 055 BQ; 4G2 423 055 CT; 4G2 423 055 DF; 4G2 423 055 DG; 4G2 423 055 DT.
A7 4K/C8 RHD references
4K2 423 055 E; 4K2 423 055 G; 4K2 423 055 K; 4K2 423 055 L; 4K2 423 055 P; 4K2 423 055 Q. Confirm rear-steering/driver-assistance equipment as well as the front rack.
Standard, Dynamic and Lock-to-Lock Differences
Steering travel is an important check. Standard and dynamic versions must not be mixed even when housings look similar.
Safety first: never force an incompatible rack through calibration. The wrong steering type or travel can prevent end-stop learning and leave steering-angle faults.
Common Audi A7 Electric Steering Faults
Heavy or intermittent steering
Assistance may disappear, return after restarting, or become heavier in one direction.
Warning lights and stored codes
Enquiries include C10AC07, C10ACF0, B200000, 03803 and steering-angle or end-stop faults. Diagnosis is required before condemning the rack.
Noise, play or water ingress
Mechanical wear, corrosion, damaged boots, seals or electronics can cause noise, looseness or unreliable assistance.
Calibration after fitting
Wheel alignment, centred track rods, steering-angle checks and lock-stop learning may be required.
Our Repair and Identification Process
Frequently Asked Questions
Can you identify it from the registration?
It helps, but VIN and rack-label photographs are normally required because mid-year changes are common.
Will it need programming?
Many correctly prepared racks avoid full dealer programming, but some require coding transfer, initialisation or end-stop learning.
Do you serve trade customers?
Yes. Garages, workshops and resellers are welcome, as are private customers.
What warranty applies?
Reconditioned steering work includes a 12-month warranty. For resellers, the start date can reflect documented onward sale or fitment when agreed.
Audi EPS overview · Electric steering rack services · Trade services
Ask About Your Audi A7 Steering Rack
Send the VIN, registration, fault codes and rack-label photographs for an accurate assessment.
