OPEN SIX DAYS · Mon–Fri 8am–5pm · Sat 10am–3pmFREE no-obligation safety check & report25+ years' expertise · Owner-operated · 606 five-star reviewsOPEN SIX DAYS · Mon–Fri 8am–5pm · Sat 10am–3pmFREE no-obligation safety check & report25+ years' expertise · Owner-operated · 606 five-star reviews
03 9763 0100
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Transmission Service & Repairs Melbourne

5.0 · 606 Google reviews

Automatic, CVT and DSG transmission servicing in Knoxfield. Fluid and filter changes, shift problems diagnosed before anything is replaced. Call (03) 9763 0100.

Transmission service in Melbourne, at our Knoxfield workshop.

Your transmission takes the engine's power and turns it into drive at the wheels. Most of the time you'll never think about it. Then one day the gear changes feel late, harsh or slushy, and you start wondering how big the bill will be.

Often it isn't big. A lot of shift problems come from old fluid, a sticking solenoid or a worn mount rather than worn gears. We service and diagnose automatic, CVT, dual-clutch (DSG) and manual transmissions, and we find out what's actually wrong before anything gets replaced.

Maroon 1957 Chevrolet Bel Air inside the Tyre Doctors workshop, KnoxfieldTyre Doctors shopfront on Ferntree Gully Road, Knoxfield, with a blue classic Ford parked out front

What's included in a transmission service

A transmission service replaces the fluid that cools and lubricates the gearbox, and checks the parts around it. On most cars it includes:

  • Draining the old fluid and checking it for burning, metal or contamination
  • Replacing the filter and pan gasket where the gearbox has them
  • Cleaning the pan and magnet
  • Refilling with the fluid your gearbox specifies (the wrong one causes shift problems)
  • Checking for leaks at the seals, cooler lines and pan
  • A scan for stored transmission fault codes
  • A road test to check the shifts once it's done

The exact steps depend on the gearbox. Some are sealed units with no dipstick, some need the fluid checked at a set temperature, and some need the gearbox's learned shift settings reset afterwards.

Automatic, CVT and DSG gearboxes

Conventional automatics. These rely on clean fluid at the right pressure to work their internal clutches. Old fluid loses its friction properties, and shifts get harsh or late.

CVTs (continuously variable transmissions). Common in Nissan, Subaru, Toyota and Honda models. They use a belt or chain between two pulleys and need a CVT-specific fluid. A whine that rises with speed, or a shudder pulling away, is worth getting looked at early.

Dual-clutch (DSG) gearboxes. Found in VW, Audi and Skoda (and similar units elsewhere). The wet-clutch versions have their own fluid and filter service in the logbook. Jerky low-speed driving or a hesitation pulling away from a stop are the usual signs something needs attention.

Manual gearboxes. These need less servicing, but the oil still wears out. A notchy change or a whine in one gear is worth a check before it becomes a rebuild.

Signs your transmission needs attention

  • Gear changes that are late, harsh or flare the revs between gears
  • Slipping, where the revs rise but the car doesn't pick up speed
  • A delay before the car moves when you select Drive or Reverse
  • A clunk when you engage a gear
  • Whining, humming or grinding that changes with speed
  • Red or brown fluid under the car
  • A burning smell after a drive
  • A gearbox or check-engine warning light

Get it checked early. Most of the cheap fixes only work before the damage spreads.

Grey Toyota GR Supra on the wheel-alignment hoist at Tyre Doctors KnoxfieldBMW X6 raised on the scissor hoist next to a white Mazda SUV at Tyre Doctors Knoxfield

Diagnosis first, so you only pay for what's wrong

We don't guess with gearboxes. When a car comes in with a shift problem, we:

  1. Ask what it's doing and when. Cold or hot, which gear, under load or cruising.
  2. Scan for fault codes. A lot of slipping that appears with a warning light is electronic, a solenoid or a speed sensor.
  3. Check the fluid. Its level, colour and smell tell us a lot about what's happening inside.
  4. Road test it. We feel the problem ourselves before we decide anything.
  5. Explain the options and the price. You decide what happens next.

Sometimes the answer is a fluid service. Sometimes it's a solenoid, a sensor, a mount or a leaking seal. If the gearbox itself is worn out, we'll say so plainly.

Transmission repairs we handle

  • Fluid and filter services
  • Leaking seals, cooler lines and pan gaskets
  • Solenoid and sensor faults
  • Gearbox and engine mounts
  • Clutch repairs on manual cars (see clutch repairs)

If the gearbox needs a full rebuild or a reconditioned unit, that's covered on our gearbox repairs and reconditioning page.

Jeep Gladiator with all-terrain tyres on the hoist at Tyre Doctors KnoxfieldWhite Toyota Alphard on the hoist at Tyre Doctors Knoxfield

What a transmission service costs

A fluid and filter service usually costs about $250 to $550. Where it sits in that range depends on the gearbox, how much fluid it takes and whether it has a filter. Dual-clutch and European automatics sit at the upper end.

Solenoid, valve body and rebuild prices are in our gearbox repair cost guide. We quote your car before we start, and nothing extra goes ahead without your OK.

European transmissions

European automatics and dual-clutch boxes are a big part of what we see, especially from BMW, Mercedes-Benz, Audi, Volkswagen, Skoda and Porsche owners. Many need the right fluid to the right temperature and an adaptation reset afterwards, so the service is done properly rather than just drained and refilled.

Why drivers choose Tyre Doctors

  • Owner-operated workshop. You talk to the people who work on your car.
  • Straight advice. We tell you when it's a $300 fix rather than a $3,000 one, and when it can wait.
  • Quoted before we start. No surprises on the invoice.
  • 606+ five-star Google reviews from local drivers.
Blue BMW X5 on the scissor hoist at Tyre Doctors KnoxfieldSilver Mercedes-Benz GLC on the scissor hoist at Tyre Doctors Knoxfield

Book a transmission service in Melbourne

Gear changes feeling off, or a transmission service due in your logbook? Call the workshop on (03) 9763 0100 or 0455 330 000, or book online. We're at 5/1644 Ferntree Gully Rd, Knoxfield.

Good to know

Frequently asked questions

It depends on the gearbox. Some makers list a fluid change between about 40,000 and 80,000 km, others call the fluid 'lifetime'. We go by your logbook and the condition of the fluid, and towing, hills or stop-start driving bring it forward.

It's usually the warranty period, not the life of the car. Fluid still wears out with heat. If your car is past 100,000 km and the fluid has never been changed, it's worth us checking its colour and smell before deciding.

A fluid and filter service usually runs about $250 to $550, depending on the gearbox and how much fluid it takes. Our gearbox cost guide has the full price ranges, and we quote your car before we start.

Sometimes. Burnt fluid or a sticking solenoid causes a lot of harsh shifting, and a service or a solenoid can sort it. If the clutch packs inside are already worn, fresh fluid won't bring them back. We scan and check the fluid first so you know which it is.

Yes. Dual-clutch (DSG) boxes in VW, Audi and Skoda have their own fluid service in the logbook, and CVTs need the right fluid for that unit. Using the wrong fluid in either can cause problems, so we match it to the gearbox.

No. Servicing at a qualified independent workshop keeps your warranty intact, as long as the work follows the logbook. We record it in your service history.

Not always. Many logbooks list it only at certain intervals, so check the schedule or ask us when you book your service.

Keep it to short trips straight to us. Slipping makes heat, and heat finishes off a gearbox quickly. Driving it gently to the workshop is far cheaper than towing it later with more damage.

Then we'll tell you straight, with a price, before any work starts. Rebuilds and reconditioned units are covered on our gearbox repairs page.

Ready when you are.

Book online in under a minute, request a free quote, or just call the workshop. We'll get you sorted — no pressure, no surprises.

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