0208 058 9668
0208 058 9668
SPECIALIST TRANSMISSION WORKSHOP

UK TRANSMISSION FAMILIES &
SPECIALIST GUIDES.

Plain-English authority guides on operating principles, known fault patterns, mechatronic diagnostics, and repair pathways across major UK passenger car gearboxes.

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GEARBOX FAMILIES

TRANSMISSION ENGINEERING WE SPECIALISE IN

Explore in-depth technical guides for every major transmission type on UK roads. Learn how each system operates, recognize early failure symptoms, and review certified repair options.

01 Dual-Clutch

VOLKSWAGEN GROUP DSG / S TRONIC

Covers DQ200 (7-speed dry), DQ250 (6-speed wet), DQ381 (7-speed wet), and DQ500 units across VW, Audi, SEAT, and Škoda. In-depth diagnosis of flashing PRNDS, mechatronic failure, and dual-clutch pack renewals.

02 Torque Converter

BMW & ZF STEPTRONIC AUTOMATICS

Covers ZF 6HP (6-speed) and ZF 8HP (8-speed) longitudinal automatics fitted to BMW, Jaguar, Land Rover, and Audi. Understand mechatronic bridge seals, torque converter lock-up shudder, and fluid flush schedules.

03 Dual-Clutch

FORD POWERSHIFT TRANSMISSIONS

Covers wet-clutch 6DCT450 (Focus, Mondeo, Kuga TDCi) and dry-clutch 6DCT250 (Fiesta, B-Max, Focus 1.6). Solutions for clutch damper spring breakage, transmission limited function warnings, and TCM electronic repair.

04 CVT Variable

NISSAN & RENAULT XTRONIC CVT

Covers Jatco CVT7 (Juke, Micra) and CVT8 (Qashqai, X-Trail, Kadjar). Understand how variable conical pulleys and steel push-belts operate, why low-speed shudder occurs, and specialized fluid requirements.

05 Planetary Auto

MERCEDES-BENZ 7G & 9G-TRONIC

Covers 7G-Tronic (722.9) and 9G-Tronic (725.0) planetary automatics across C-Class, E-Class, S-Class, GLC, and GLE. Details on conductor plate speed sensors (Y3/8n1, Y3/8n2), ISM selectors, and valve body rebuilds.

06 Manual & Clutch

MANUAL GEARBOX & CLUTCH SYSTEMS

Covers 5 & 6-speed manual transmissions across all UK manufacturers. Solutions for worn synchronizer brass rings (gear crunching), differential bearing whine, dual-mass flywheel (DMF) judder, and slave cylinders.

IDENTIFICATION PROTOCOL

NOT SURE WHICH GEARBOX YOUR CAR HAS?

Many car models are manufactured with multiple transmission options depending on engine size, trim level, and production year. We identify your exact gearbox specification directly through official UK vehicle records.

01 DVLA & MOT Intelligence Lookup — Instant retrieval of exact vehicle model, engine code, fuel type, and power output.
02 Manufacturer Fitment Cross-Reference — Verified cross-check against OEM transmission codes (DSG, ZF, Powershift, CVT, etc.).
03 No-Obligation Specialist Advice — Clear diagnosis of reported symptoms with transparent pricing and 12-month warranty.
Interactive Fault Finder
Specialist transmission engineering workbench
100% Verified Fitment
DIAGNOSTIC GUIDES

EXPERIENCING TRANSMISSION SYMPTOMS?

Read our 20 plain-English mechanical symptom guides covering gearbox slipping, juddering, mechatronic faults, and warning messages across all UK transmission families.

EXPLORE 20 FAULT GUIDES → RUN FAULT FINDER 0208 058 9668