What’s Involved in a Transmission Service?

By Mister Transmission

Mister Transmission offers various types of transmission servicing, depending on your car’s needs. Here we explain the 5 most common transmission services.

A transmission service is part of your routine maintenance, just like replacing your engine oil. Here we’ve laid out the different types of transmission services we offer at Mister Transmission, including why they are important and what each service includes.

Automatic Transmission Fluid Exchange:

Transmission gears deliver power from the engine to the drive wheels, shifting automatically to provide the best power and efficiency for your driving speed. A special transmission fluid cools and lubricates the gears. Over time, this fluid degrades, and its lubricant qualities diminish. Changing the fluid at the correct intervals can help prevent premature wear and damage to the transmission.

This service includes;

Removal of the old transmission fluid and replacing it with new, clean fluid of the grade recommended by your vehicle manufacturer.

Automatic Transmission Drain and Fill:

Automatic transmission fluid lubricates, cools and cleans internal components of the transmission. It also helps to maintain the hydraulic pressure necessary for the transmission to function. The additives in the transmission fluid can be depleted over time.

This service includes;

  • removing the transmission fill/drain plug to remove the old automatic transmission fluid
  • reinstalling transmission fill/drain plug
  • refilling the transmission with new automatic transmission fluid to the proper level

Automatic Transmission Filter Replacement:

The automatic transmission filter helps remove dirt and contaminants from the automatic transmission fluid.

This service includes;

  • removing the transmission pan
  • removing the old transmission filter and replacing it with a new transmission filter
  • removing the old gasket material
  • replacing the pan gasket with a new gasket and reinstalling the pan
  • refilling the transmission with new automatic transmission fluid to the proper level

Automatic Transmission Fluid Exchange & Filter Replacement:

Automatic transmission fluid lubricates, cools and cleans internal components of the transmission. It also helps to maintain the hydraulic pressure necessary for the transmission to function. The additives in the transmission fluid can be depleted over time.

This service includes;

  • changing the fluid in the transmission system, including the torque converter and transmission cooler
  • removing the transmission pan
  • removing the old transmission filter and replacing it with a new transmission filter
  • removing the old gasket material
  • replacing the pan gasket with a new gasket and reinstalling the pan
  • refilling the transmission with new automatic transmission fluid to the proper level

Manual Transmission Service:

Manual transmission fluid provides lubrication to gears, bearings, shafts, and other internal components. Heat, pressure and friction can slowly breakdown the additives in the manual transmission fluid. In addition, small particles of metal may come off the gears as they wear and these metal particles can mix with the fluid. Fluids can also become contaminated with water.

This service includes;

  • draining or evacuating the old manual transmission fluid
  • filling the manual transmission fluid with the manufacturer’s recommended type and quantity of new fluid

The net result of all these services is to provide better lubrication, improve the holding ability of the friction components, and reduce heat. This means your transmission works better, longer. Therefor you are less likely to face a major transmission repair.
Mister Transmission offers all of these services, and will be happy to explain the details to you.

A complete transmission service should include:

  • removing and examining the sump or pan (where possible)
  • replacing or cleaning the screen or filter
  • cleaning the pan
  • reinstalling the pan with a new pan gasket

Want to know more?
Visite one of our locations!

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Customer Reviews
Mr. Transmission in Guelph has...
Bob Longhurst
Mr. Transmission in Guelph has been outstanding every time I've had to get work done there over the years. Absolutely nothing negative to say about my experiences here, and would recommend them in a heartbeat.
Date: December 8, 2025
Website: Google
They did an amazing job...
Hussien Al
They did an amazing job working on one of my salt trucks. They had it up and running in no time! Would absolutely recommend them to anyone that’s looking for quality work.
Date: December 8, 2025
Website: Google
I had my transmission changed...
Jay Colling
I had my transmission changed on my 2018 GMC Terrain. They were very professional and took care of my vehicle. My transmission feel brand new and not worried about it. I highly recommend bringing your transmission problems to these professionals. Thank you Brian and your mechanics.
Date: December 5, 2025
Website: Google
Driving for 43 years, been...
Marc Ingram
Driving for 43 years, been in many different situations and worked in the automotive industry Broke down on highway Within an hour truck was parked inside shop for overnight security, transmission rebuilt in breaking time , friendliness, customer service and satisfaction outstanding I would still drive 3 hours from home to experience that service anytime. Highly recommend . Thank you so much
Date: December 4, 2025
Website: Google
Thanks Dan for the great...
Gary Murray
Thanks Dan for the great job you and your team did on my clutch in the fiesta ......I will highly recommend your shop
Date: December 4, 2025
Website: Google
amazing experience! I recently brought...
Kirsten Hasler
amazing experience! I recently brought my 2018 GMC Sierra to Mr. Transmission, Matt was amazing to deal with, my truck was having issues with the torque converter shutter over 100km/h and a hard shift between 1st and 2nd gear. Matt and his team did a rebuild on the transmission, explained everything in detail and had different options and they were extremely patient and understanding when it came to warranty, and picking/dropping off the truck! definitely a happy customer!!!!
Date: December 3, 2025
Website: Google
They are worthy of your...
David Belcredi
They are worthy of your trust!!! My car was acting up and I thought it was the transmission and my car (2017 elantra 160000km) is halfway through it life so I would believe it if they came back and said you need to rebuild it. After my inspection I had the pleasure of meeting Jason an absolute legend!! He gave me the good news my transmission was fine and even gave me his two cents on what he thought it could be. For a free inspection they put my mind at ease and earned my trust. I 100% will becoming back and encourage everyone to go here . Big shout out to Jason and the guys at the shop, i had a great experience! -thank you
Date: December 3, 2025
Website: Google
The cambridge transmission was very...
James Whitney
The cambridge transmission was very friendly and helpful with diagnosing and fixing my transmission issues
Date: December 2, 2025
Website: Google
Excellent communication and customer service....
Shawn Meier
Excellent communication and customer service. Chris is fantastic. Mister Transmission provided a free assessment and diagnosis, worked with my warranty and kept us in the loop. Very pleased.
Date: December 1, 2025
Website: Google
Great service
Jack Waites
Great service
Date: December 1, 2025
Website: Google
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