Transmission Service
Manual and Automatic/DSG Transmission Service and Repair
Whether your vehicle has an automatic transmission, manual transmission, DSG (Direct-Shift Gearbox), or CVT transmission, keeping it properly maintained is essential for smooth performance and long-term reliability. If you’re experiencing rough shifting, slipping gears, delayed acceleration, transmission warning lights, or fluid leaks, our experienced technicians can accurately diagnose the issue and recommend the right repair. We specialize in servicing DSG transmissions found in many Volkswagen, Audi, Porsche, SEAT, and other European vehicles.
- Transmission inspections and diagnostics
- Automatic transmission repair
- Manual transmission repair
- DSG transmission service
- DSG fluid and filter replacement
- Transmission fluid flush and replacement
- CVT transmission service
- Transmission filter replacement
- Transmission leak detection and repair
- Clutch inspection and replacement
- Mechatronic diagnostics (DSG systems)
- Shift solenoid replacement
Trusted by 100+ Drivers in Oakville
Work was done quickly and cleanly, prices are fair, and communication was clear throughout the process. You can tell they care about their reputation and about doing the job right. Definitely recommend this place if you’re looking for a reliable and trustworthy auto service.
Sacha Kurochka
Fantastic service. Very knowledgeable and friendly. It’s in my honest opinion, prices are very reasonable and affordable. Had a tune-up done on my Mercedes, oil change plugs tire rotation and it was a fraction of the cost from the dealer. I strongly recommend.
Ralph Schiafone
These guys know what they’re doing. Came in to change my tires — everything was done fast, clean, and without any upselling. You can tell they have real experience: no mistakes, no wasted time, just solid work. Prices are fair and the service is straightforward — not like those places that try to squeeze extra money out of you. If you need something done quickly and properly, definitely worth coming here.
Vitalik Khromeiko
The staff at Dorval Service have provided me and my family with superior service for over 5 years. Staff are always pleasant, friendly and honest with their assessments and work to provide prompt and superior service. I recommend them to all my friends.
Carolynn Leblanc
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Transmission FAQ
Many modern vehicles advertise “lifetime” transmission fluid, but this does not mean the fluid lasts forever. In most cases, “lifetime” refers to the expected warranty period of the transmission—not the actual lifetime of the vehicle. Over time, transmission fluid still breaks down due to heat, friction, and contamination, which can lead to rough shifting, overheating, and internal wear.
Even if your manufacturer does not list a service interval, regular transmission fluid inspection and replacement can help extend the life of your transmission, improve shifting performance, and reduce the risk of costly repairs.
A DSG (Direct-Shift Gearbox) is an advanced dual-clutch automatic transmission commonly found in Volkswagen, Audi, and other European vehicles. It delivers fast, smooth gear changes but requires regular maintenance, including scheduled DSG fluid and filter changes, to ensure reliable performance and extend the life of the transmission.
Most manufacturers recommend a DSG service every 60,000 km, although the exact interval depends on your vehicle. A typical DSG service includes replacing the transmission fluid and filter and checking the transmission for any signs of wear or leaks.
Common symptoms include delayed or rough shifting, slipping gears, transmission fluid leaks, unusual noises, burning smells, poor acceleration, or a transmission warning light. Whether you have an automatic, manual, DSG, or CVT transmission, early diagnosis can often prevent more expensive repairs.
Yes. Many transmission issues can be repaired by replacing worn components such as sensors, seals, solenoids, or mechatronic units rather than replacing the entire transmission. We’ll perform a complete diagnostic inspection and recommend the most cost-effective solution for your vehicle.