askvity

Is transmission fluid changed in a service?

Published in Vehicle Maintenance 2 mins read

The answer depends on the type of service. A major service includes an inspection of the automatic transmission oil level, but it does not include a transmission fluid change. A brake fluid change, however, is included in a major service.

Understanding Service Types

To clarify, let's look at what is typically included in different types of automotive services.

Service Type Transmission Fluid Change Brake Fluid Change Other Key Checks
Full Service No No Many common checks
Major Service Automatic oil level check Yes Up to 80 checks, spark plugs, filters, battery test


  • Full Service: Generally involves checks on lights, fluids, brakes, and tyres. Transmission fluid is not changed.
  • Major Service: As noted in the reference, includes everything in a full service plus additional checks and changes, including:
    • Brake fluid change.
    • Air pollen filter replacement.
    • Spark plug replacement.
    • Automatic transmission oil level inspection.
    • Battery test.

Transmission Fluid: Change or Check?

It's crucial to understand the distinction between a transmission fluid level check and a transmission fluid change.

  • Level Check: This involves ensuring that the transmission fluid is at the correct level as indicated in your vehicle's manual. If it is low, the mechanic will top it up.
  • Fluid Change: This is a more involved process where the old transmission fluid is drained out and new fluid is put in. The major service does not include this.


Typically, a full transmission fluid change is recommended based on mileage or time intervals specified in your vehicle’s owner’s manual.

Practical Insights

  • It is important to check your car's owner's manual for specific recommendations regarding transmission fluid changes.
  • Transmission fluid changes are not always part of a routine service, they usually require a more specialised procedure.
  • Ignoring transmission fluid maintenance can lead to costly repairs and can impact your car's transmission performance.

Related Articles