MAJ Diagnostics Birmingham B7
Service · Transmission

Gearbox repairs - automatic, manual, DSG and clutch work.

From a slipping clutch on a daily Astra to a hesitant DSG mechatronic on a Golf R - we diagnose what's actually wrong before recommending the fix.

Gearbox issues are expensive when they're misdiagnosed. A new auto box is £3,000+. A mechatronic unit is £1,200+. A clutch is £600-£1,200. Often the actual fault is much smaller - a worn dual mass flywheel mis-blamed on a clutch, a tired ATF fluid mis-blamed on a torque converter. We diagnose first, recommend the fix afterwards.

Automatic gearbox work

  • Live diagnostic - oil temperature, slip values, line pressure
  • Service: full fluid and filter change (correct grade for your box)
  • Torque converter and pump diagnostics
  • Solenoid and valve body issues
  • ZF 6HP/8HP, Mercedes 7G/9G, Audi/VW DSG and ZF coverage

DSG and dual-clutch transmissions

DSG/S-Tronic boxes are great when they work and a nightmare when they don't. Mechatronic faults, judder on take-off, learned values gone wrong - we diagnose with ODIS-level tooling and only recommend mechatronic replacement when it's genuinely needed.

  • DSG service (oil + filter) - DQ200, DQ250, DQ500, DL501
  • Mechatronic fault diagnosis
  • Adaptation reset after service or repair
  • Clutch pack wear assessment

Manual gearbox and clutch

  • Clutch replacement (single mass and dual mass flywheel)
  • Clutch hydraulic - master and slave cylinder
  • Gearbox synchro and bearing issues
  • Differential and driveshaft work

Signs you should get the gearbox checked

  • Slipping or flaring between gears
  • Harsh or delayed engagement (especially from neutral)
  • Whine, hum or rumble that changes with speed
  • Shudder or judder on take-off
  • Gearbox warning light or 'transmission fault' message
Brands Covered
BMWAudiVWMercedesLand RoverJaguarPorscheVolvoMini
Booking

Got a fault no one else can fix? Bring it to Maj.

Phone, WhatsApp or book online. We will diagnose, quote honestly, and only fix what needs fixing.

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