OurServices
Specialist automatic gearbox diagnostics, repairs, and replacements in Wimbledon and South West London. With decades of hands-on experience, we provide reliable workmanship, honest advice, and solutions you can trust for all makes and models.
OurServices
Automatic Transmission Specialists
Automatic gearbox problems can be complex, frustrating, and often misdiagnosed. At Wimbledon Automatics, we focus exclusively on automatic transmissions, giving us the depth of expertise needed to diagnose faults accurately and fix them properly.
From initial diagnostics through to repair, rebuild, or replacement, all work is carried out in-house by experienced technicians using modern diagnostic equipment and OEM-quality components. We don’t upsell unnecessary work — instead, we explain the issue clearly and let you choose the best solution for your vehicle.
Whether the problem is minor or requires major transmission work, you’ll receive honest advice, competitive pricing, and workmanship you can rely on.
Diagnostics • Servicing • Repairs • Rebuilds • Replacement • Warranty-backed work
Automatic Transmission Diagnostics
Accurate fault finding using advanced diagnostic equipment
Transmission issues can stem from both electronic and mechanical faults. We use multiple state-of-the-art diagnostic systems, updated regularly, to accurately identify problems before any work begins.
What we diagnose:
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Transmission ECU / TCU faults
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Engine management issues
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ABS and drivetrain-related errors
✔ Clear fault identification
✔ No guesswork
✔ Honest advice before any repair
Automatic Gearbox Servicing
Preventative maintenance to protect performance and longevity
Regular servicing plays a vital role in maintaining the health of an automatic gearbox. Over time, transmission fluid degrades, filters can become restricted, and wear particles can circulate within the system — all of which can lead to poor shifting, overheating, or premature failure if left unchecked.
At Wimbledon Automatics, we carry out professional automatic gearbox servicing in line with manufacturer guidance and gearbox-specific requirements. Where appropriate, this includes fluid replacement, filter changes, system checks, and adaptation resets using specialist diagnostic equipment.
Our servicing approach includes:
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Gearbox fluid inspection and replacement (where suitable)
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Filter and sump service (gearbox dependent)
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Diagnostic checks and software resets
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Advice based on mileage, usage, and manufacturer recommendations
✔ Helps extend gearbox life
✔ Improves shift quality and performance
✔ Honest advice — servicing only where appropriate
If you’re unsure whether your gearbox is due for servicing, contact us with your vehicle details and we’ll be happy to advise.
Automatic Gearbox Repair
Targeted repairs where replacement isn’t necessary
Many automatic transmission issues can be repaired without replacing the entire gearbox. Once a fault is diagnosed, we’ll explain whether a repair is viable and advise on the most cost-effective solution.
Our repair work includes:
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Internal component repair
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Electrical and hydraulic fault resolution
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Fluid-related and shifting issues
✔ In-house repairs
✔ OEM genuine parts only
✔ Clear explanation of work required
Gearbox Rebuilds & Reconditioned Transmissions
Built in-house to a high standard
When repair isn’t viable, we offer fully reconditioned automatic gearboxes, built and assembled in-house using proven methods and OEM components.
You’ll always have the choice to:
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Repair the existing gearbox (where possible), or
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Replace it with a reconditioned unit
✔ High-quality rebuilds
✔ Built by experienced technicians
✔ No outsourced work
Gearbox Replacement & Fitting
Professional supply and installation
We supply and fit reconditioned automatic gearboxes when replacement is the most reliable option. All fitting is carried out by technicians with hands-on transmission experience.
✔ Correct installation first time
✔ Fully tested before handover
✔ Warranty-backed peace of mind
Warranty & Ongoing Support
Confidence after the work is done
All reconditioned transmissions are supplied with a 12-month / 12,000-mile warranty. Repair warranties are provided in line with the fault identified and work completed.
We also support fleet and high-usage vehicles, including ongoing work for large private hire operators.
✔ Transparent warranty terms
✔ Fleet support available
✔ Long-term reliability focus
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