Gearbox Flush - Ewhurst & Gatwick

A gearbox flush goes further than a standard fluid change.

Where a fluid change drains the sump and replaces what comes out, a flush circulates cleaning additives and new fluid through the entire transmission – including the torque converter, valve body, and cooler lines – removing degraded oil, contaminants, and the fine metallic particles that a drain alone won’t reach. The sump, filter, gasket, and sump bolts are replaced as part of the process, and 100% of the old gearbox oil is exchanged.

Over time, automatic gearbox oil degrades, leading to blockages, slipping gears, and accelerated wear on internal components. A flush restores the system to a clean baseline and keeps the gearbox operating as it should.

When a flush is worth considering

  • Automatic gearboxes should generally have their oil changed every 50,000 to 70,000 miles – a flush is the most thorough way to do this
  • High mileage vehicles where gearbox fluid has never been changed
  • Vehicles used for regular towing or in demanding conditions
  • Gearboxes showing early signs of sluggish or rough operation

If you’re unsure what your vehicle requires, give us a call on 01483 278166, and we’ll check what the manufacturer recommends for your model, age, and mileage.

Why CCM?

We’re proud to be an accredited ZF Pro Tech Plus garage – a recognition that reflects the standard of equipment and expertise we bring to automatic gearbox work.

It’s also worth knowing that our gearbox service prices are typically a fraction of main dealer rates – often two to three times less – partly because we purchase oils in bulk and pass that saving directly to customers. Other garages may offer a fluid change, but it’s worth checking whether they can carry out a full flush. For a genuinely thorough service, you want the entire system cleaned, not just the sump drained.

Good routine maintenance is always cheaper than repair. Neglecting gearbox oil leads to premature wear, parts failure, and significantly larger bills down the line.

Choose CCM to take advantage of:

  • Accredited ZF Pro Tech Plus garage
  • Full system flush – not just a fluid drain
  • Correct oil specification for every vehicle
  • Transparent, honest pricing well below main dealer rates
  • Collection service available
  • Loan vehicles available

Gearbox flushes are carried out at our Ewhurst and Gatwick sites.

CCM has been trusted by customers across Surrey and Sussex for over 30 years, and recognised by the industry to match, with awards including back-to-back Automechanika Best Multi-Site Garage wins, consecutive IGA Best Independent Garage titles, and the Top Garage Award 2025.

To book your Gearbox Flush in Ewhurst, Gatwick or Cranleigh, use our online booking or contact us online. Alternatively, give us a ring.

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