Book an automatic gearbox specialist
Automatic gearboxes require the right skills and tools to diagnose and repair. Whether it’s a fluid change, repair, or full rebuild, keep your automatic gearbox performing at its best by taking it to a specialist.
Book a diagnostic
A mechanic will check your car for faults and talk you through any repairs you might need. There are various ways to check for faults, which could include a physical examination or plugging in to check your car’s onboard engine management system.
Content Guide
Introduction
Automatic gearboxes are essential for smooth driving, automatically handling gear changes without any effort. Regular maintenance, like checking and replacing transmission fluid, keeps your gearbox in good shape, preventing costly issues and extending its lifespan. Taking care of your gearbox gives better performance, reliability, and a more enjoyable driving experience.
What is the auto gearbox?
An automatic gearbox, or automatic transmission, is a mechanical system that changes gears for you as you drive. Unlike manual gearboxes, which need the driver to change gears by hand, automatic gearboxes use a hydraulic system, electronics, and mechanics to shift gears based on speed, load, and driving conditions.
Key parts of an automatic gearbox
- Torque converter: Links the engine to the gearbox, letting the engine run without always turning the wheels.
- Planetary gear sets: Adjusts gears for different driving speeds and conditions.
- Hydraulic system: Uses fluid to make gears shift smoothly.
- Transmission control unit (TCU): An electronic brain that controls the gear shifts.
Common issues with the auto gearbox
Automatic gearboxes can face several issues over time. Here’s what to watch out for:
- Slipping gears: When the transmission suddenly shifts gears or slips out of gear, it may be because of worn gears or low transmission fluid. This can hurt your car’s performance. It can also be risky if not fixed quickly.
- Delayed gear engagement: If there’s a delay when shifting from park to drive or reverse, it could be a sign of problems with the transmission fluid or filter, or other internal issues needing a professional check.
- Transmission fluid leaks: Transmission fluid is vital for cooling and lubricating the gearbox. Leaks from worn seals or gaskets can lower fluid levels, causing overheating and potential gearbox failure.
- Strange noises: Grinding, whining, or clunking sounds when shifting gears might signal internal damage or worn parts. Get it checked right away to avoid more damage.
- Warning lights: Dashboard warning lights can signal transmission problems. If you see a transmission warning light, have a professional inspect your vehicle.
Symptoms of auto gearbox issues
Watch for these signs to catch problems early and avoid costly repairs:
- Difficulty shifting gears: Jerky or hard gear changes might mean low fluid or internal damage.
- Unusual smells: A burning smell could mean overheating fluid or burnt components.
- Fluid leaks: Red or brown fluid under your car usually points to a leak.
- Noisy operation: Noise while in neutral or shifting gears often means internal damage.
- Dashboard warning light: A transmission warning light means a problem has been detected and needs checking.
Auto gearbox repair cost
Repair costs for automatic gearboxes vary based on the extent of damage, vehicle make and model, and repair shop rates.
Keeping your automatic gearbox well-maintained and addressing issues early is key to its performance and longevity. Regular checks and understanding repair costs can help prevent costly breakdowns and extend the life of your gearbox.
Frequently Asked Questions on auto gearbox repair
Repair costs depend on the issue and vehicle type. To know how much, it’s best to speak to your local mechanic.
It's recommended to service an automatic gearbox every 30,000 to 60,000 miles, as per the manufacturer's guidelines.
Yes, many issues with automatic gearboxes, such as fluid leaks and worn-out components, can be repaired by a mechanic.
With proper maintenance, an automatic gearbox can last between 150,000 to 200,000 miles or more.
Some repairs may be covered under the vehicle's warranty, but it's important to check the terms and conditions.
Some insurance policies may cover gearbox repairs, especially if the damage results from an accident or other covered event. Check with your insurance provider for details.
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