Book an exhaust repair
A damaged exhaust system can lead to more emissions, noise, and reduced engine performance. Issues such as leaks, rust, or broken components could also mean you fail your MOT. So when you need to, make sure you get it repaired at an RAC Approved Garage.
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
If you own a car, you have a gearbox that needs regular care to keep your vehicle running smoothly. A well-maintained gearbox means that you have a vehicle that likely drives safely and smoothly. A failing gearbox, however, means your car is unsafe and difficult to drive.
What is a car gearbox?
Your car’s gearbox is a vital part of your vehicle's powertrain. It adjusts your engine’s output to the wheels, allowing your car to drive at various speeds. Your gearbox is either a manual or an automatic:
- Manual gearbox: You manually change gears using a clutch pedal and gear stick. This type is often found in older and sports cars.
- Automatic gearbox: The car changes gears automatically when you drive without the need for a clutch pedal. This is common in modern vehicles as it’s very convenient.
The gearbox makes sure the engine runs at an optimal speed regardless of the car’s speed. This function helps maintain fuel efficiency and engine health.
What causes the car gearbox to need repair?
Many factors can lead to your gearbox suffering problems. These include:
- Wear and tear: Over time, your car’s gears and components naturally wear out. This damage can cause you problems such as slipping gears or rough shifting.
- Fluid leaks: Your gearbox’s fluid lubricates and cools its gears. If it leaks, there isn’t enough lubrication, which can lead to overheating and wear.
- Mechanical failures: Parts like bearings, gears, and seals can break or wear out. This can lead to many functional issues with your car.
- Driving habits: If you drive aggressively, you may put too much strain on your gearbox.
- Poor maintenance: Neglecting gearbox maintenance, such as failing to change its fluid, can speed up wear and lead to significant issues with your car.
Regular maintenance and mindful driving can help extend the life of your gearbox.
How to tell if the gearbox has gone
Finding problems with your gearbox early can save you both time and money. Here are signs that your gearbox might need repair:
- Unusual noises: Grinding, whining, or clunking sounds when changing gears? This can often mean serious problems which need to be checked by a mechanic.
- Difficulty shifting gears: If you’re having trouble shifting gears your gearbox is likely failing.
- Leaking fluid: If you notice red or brown discharge under your car, it’s likely a gearbox leak.
- Burning smell: Smell burning? Your gearbox could be overheating.
- Check engine light: If you see a light it can mean different things, such as an issue with your gearbox.
If you notice any of these signs, get your gearbox checked at an RAC Approved Garage.
How is a gearbox repaired?
Gearbox repair is a detailed process. It usually involves these steps:
- Diagnosis: The mechanic uses diagnostic tools to find the problem. They may test drive your car and use a scanner to check for error codes.
- Disassembly: The gearbox is removed from your car and taken apart to inspect all its components.
- Repair or replace parts: Damaged parts are repaired or replaced. This could include gears, bearings, seals, and fluid.
- Reassembly: The gearbox is put back together with new or repaired parts.
- Testing: The reassembled gearbox is tested for before being put back in your car.
It’s important to remember that different garages and mechanics may carry out slightly different checks to what is mentioned above. You should speak with your mechanic to confirm what they will be doing.
How much is a new gearbox?
The cost of a new gearbox varies based on several factors:
- Type of gearbox: Automatic gearboxes are more expensive than manual ones.
- Car makes and model: Some cars have more expensive parts due to their design or brand.
- Labour costs: Rates vary by location and how complex the job is.
On average, a new gearbox can cost between £500 and £1,500. In some cases, it can be more, especially for high-end or luxury vehicles. It’s a good idea to get more than one quote to find the best price.
Frequently Asked Questions on gearbox repair
If your clutch has gone, you may have a problem trouble shifting gears or a soft or spongy clutch pedal. It might not even move when in gear!
Gearbox issues, on the other hand, show themselves with grinding noises, difficulty staying in gear, or leaking fluid. Both issues affect your gear shifting but come from different parts of the transmission system.
A gearbox specialist is a mechanic who’s an expert in diagnosing, repairing, and replacing gearboxes. They have training and experience dealing with many types of gearboxes, including manual, automatic, and semi-automatic systems. Talking to a specialist makes sure that any gearbox issues you may have are accurately diagnosed and repaired to the best standard.
Yes, many damaged gearboxes can be repaired. How damaged it is dictates how repairable it is. Small issues like worn seals or bearings can often be fixed. Severe damage might mean a complete rebuild or replacement. A professional mechanic can see the damage and tell you the best course of action.
Common signs of a faulty gearbox include:
- Grinding or whining noises.
- Difficulty changing gears.
- Leaking transmission fluid.
- A burning smell from the transmission area.
- The car slipping out of gear or not staying in gear.
If you notice any of these symptoms, it’s best to get your gearbox seen by a professional.
The gearbox transfers power from the engine to the wheels. This allows your car to move at different speeds. It adjusts the engine's power output to the wheels and makes sure the engine runs well at various speeds.
Mechanics use several methods to find gearbox issues:
- Visual inspection: Checking for obvious signs of damage or leaks.
- Test drive: Watching the car’s performance while driving.
- Diagnostic tools: Using scanners to read error codes from the car’s computer.
- Fluid analysis: Checking the condition and level of transmission fluid.
These methods help pinpoint the problem.
A DSG (Direct-Shift Gearbox) is a type of automatic transmission. It uses two clutches for faster and smoother gear changes. As it combines the ease of an automatic with the performance of a manual gearbox, it’s popular in many modern vehicles.
Whether a gearbox repair is covered by warranty depends on your policy. Manufacturer warranties often cover gearbox repairs in a certain period or mileage. Extended warranties and aftermarket policies may also provide you cover. Check your warranty details or talk to your provider for more information.
Most standard car insurance policies don’t cover gearbox repairs unless the damage is due to an insured event like an accident. Mechanical breakdown cover or specialised policies might offer you protection. Review your insurance policy or speak with your insurer to find out more about your coverage.
Gearbox repair costs vary a lot, depending on the issue and car type. Minor repairs can cost you a few hundred pounds. Major repairs or replacements can potentially cost you more than £1,000. Labour rates and party prices also influence the total cost that you may have to pay. It’s a good idea to get more than one quote for a good estimate.
For the best quality repairs, look for certified mechanics with helpful reviews. Specialists can provide you accurate diagnoses and reliable repairs, keeping your car running as it should.
Filter by