Why choose the RAC for an automatic transmission fluid top-up?

At the RAC, we've got over 125 years' experience helping UK drivers. We have the skills and knowledge to keep your vehicle running. We'll give you results you can rely on at a price you can afford.

Close up of an RAC Mobile Mechanic underneath a car

Book an automatic transmission fluid replacement

To help make sure you’re getting smooth gear shifts and a long transmission life you need to maintain your automatic transmission fluid. So when you need to, make sure you have that old fluid drained and refilled at an RAC Approved Garage.

Any work done will meet the high standards set by the RAC.
We’re friendly, straightforward and jargon-free

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.

We’ll look for any mechanical or electrical problems. If we need to, we’ll also check your car’s onboard engine management system. Depending on your car and issue, this will usually include: – Engine – Power steering – Brakes – Transmission – Exhaust system – Fuel injection system – Cooling system and air flow – Sensors

And it’s not just automatic transmission fluid replacements that we do in Taunton

RAC Approved Garages offer MOTs and services. Our professional mechanics have the expertise and experience to make sure your vehicle is operating safely and efficiently – results you can rely on at a price you can afford.

Try one of our RAC Approved Garages

Taunton Auto Service

5.0/5

Family run garage based in Priorswood area, Taunton, Somerset. Professional car repairs, service, brakes, tyres, clutches, gearboxes, steerings and engine replacement service. Our labour hour rate starts at £54 plus VAT. We have a reception area where you can wait, when not very busy we can have a chat and a hot/cold drink. In some cases we can arrange for your car to be collected/dropped off for a fee. Easy to be found on Priorswood Road, next to Pearsons Hydraulics.
Unit 2, Enterprise Park, Priorswood Road, Taunton, TA28FR

Audi 4 U LTD

5.0/5

Audi 4 U LTD
Unit 18 Axe Road, Colley Lane Industrial Estate, Bridgwater, TA65LJ

Causeway 4x4

5.0/5

We are a garage located in Dunball, Nr Bridgwater in Somerset just off Junction 23 of the M5 motorway. As Independent Landrover Specialists we specialise in 4×4 vehicle repairs, service, MOTs and spare parts. If you are looking for Land Rover or other vehicle service then look no further! Since re establishing in 2009 we now also offer service work, repairs and MOT’s to all vehicles, not just 4×4’s. We look forward to hearing from you!
Bristol Road, Dunball, Bridgwater, TA64TN

Bartlett Park Garage Ltd

5.0/5

Bartlett Park Garage Ltd is a family run MOT and general repairs garage. The garage offers a huge range of services which makes it the leading 'one stop' workshop and car service centre in the area. Bartlett Park Garage was started by the managing director Adrian Gould in the late 80's and through hard work and securing an excellent local reputation the business has grown in size and strength. The garage now operates from a purpose built workshop on Thorndun Park Drive and boasts two MOT lanes, 5 qualified MOT testers, a reception with viewing/waiting area, a tyre bay, eight lift ramps, an engine crane and a diagnostics bay. Bartlett Park Garage Ltd offers MOTs (while you wait, if required), Servicing, Air-con servicing and repairs, Engine diagnostics, Injector removal/extraction, Electrical repairs, Tyres, Puncture repairs, Exhausts, Clutches, Coolant systems, Fan belts, Timing/CAM belts & chains, DPF Cleaning, Welding repairs, Tracking & wheel alignment and all general repairs. No job is too big or too small! Bartlett Park Garage also has an award winning apprenticeship scheme and has worked with various local schools and colleges. The garage has gone on to offer full time employment to many of the apprentices it has trained. The garage is proud to be 'RAC Approved' and a 'AutoCare Service Centre', winning awards and receiving a huge amount of positive feedback from our customers..
Bartlett Park Garage Ltd, Thorndun Park Drive, Chard, TA20 1FF

K & R Auto Services

4.0/5

K and R Auto Services Ltd, located in Tauton, is an independent garage that has been servicing and repairing all makes of car and light commercials since 1985 using factory trained technicians with state of the art tooling; this allows K and R to offer fleet companies and private individuals a one stop shop centred around excellent service with affordable pricing. During 2009 K & R relocated to their new site having outgrown the original premises (all be it a stones throw away), enabling them to expand their services into new and used car sales, bodyshop smart repairs, paint-less dent removal, interior trim repair on velour, leather, plastics, and fabric as well as a valet department and a bespoke parts department to name but a few. The new fully automated M.O.T bay and service centre has been designed to cater for all manufactures cars and light commercials all are serviced to the manufacturers standards; some of our partners include major fleet companies such as Wessex Water, British Gas, the Highways Agency and the One link platform. All these groups recognise the need for quality repairs, reduced vehicle down time with guaranteed workmanship at a reasonable cost (cheapest is not always the best). K and R have won the coveted Fleet Garage of the year several times; a credit to their staff and all concerned.
Cook Way, Bindon Road, Taunton, TA2 6BJ

Frequently asked questions on automatic transmission fluid change

Automatic transmission fluid should be changed every 30,000 to 60,000 miles. However, always check your vehicle’s manual for the manufacturer’s recommendation. Your driving habits and the conditions you drive in will affect how quickly your fluid degrades. Regular checks and following the manufacturer’s guidelines will help to make sure your transmission stays in good condition.

Some people believe that changing old transmission fluid can cause issues, especially in high-mileage vehicles. This myth stems from the fact that when automatic transmission fluid is changed, the new fluid can sometimes dislodge debris, causing problems. However, this is usually due to debris build-up.

If you don’t change the automatic transmission fluid, it can become contaminated and lose its effectiveness, leading to transmission wear and potential failure. Over time, dirty automatic transmission fluid can cause increased friction, overheating, and significant transmission damage. Regular changes will help you avoid costly repairs and keep the transmission running smoothly.

Fresh automatic transmission fluid is bright red and clear. If your fluid looks clean and smells fresh, it’s been changed recently. You can also check the service records for confirmation. If in doubt, ask your mechanic to check.

Signs that you might need a transmission flush include:

  • Slipping gears: The transmission struggles to stay in gear.
  • Delayed gear engagement: There’s a noticeable delay when shifting gears.
  • Overheating: The transmission becomes excessively hot.
  • Unusual noises: Grinding or whining sounds from the transmission.
  • Dirty fluid: The automatic transmission fluid is dark or discoloured.

A flush can help remove contaminants and restore the fluid’s effectiveness.

It’s often best to have a professional do it. The process can be messy and requires proper disposal of old fluid. Professional services also include checks and diagnostics to ensure everything is working.

Transmission fluid is used in automatic transmissions, while gearbox oil is used in manual transmissions. They’re made to do different jobs, so they’re not interchangeable. Automatic transmission fluid is designed for the hydraulic and cooling needs of automatic transmissions, while gearbox oil provides the necessary lubrication for manual transmissions.

An automatic transmission flush is a service where all the old automatic transmission fluid is removed, and new fluid is added. It helps remove contaminants and old fluid that might be stuck in the transmission. It’s more thorough than a simple fluid change and can help restore the transmission’s performance.

Yes, changing the automatic transmission fluid is necessary to keep your vehicle’s transmission running well. Over time, the fluid degrades and becomes less effective, leading to potential transmission problems. Regular changes help the transmission run smoothly and can prevent costly repairs down the line.

To extend the life of your automatic transmission fluid:

  • Regular maintenance: Follow the manufacturer’s guidelines for fluid changes.
  • Avoid excessive heat: Don’t overload your vehicle or tow heavy loads when you don’t have to.
  • Check for leaks: Regularly inspect your vehicle for fluid leaks.
  • Smooth driving: Avoid aggressive driving habits that can overheat the transmission.

Proper care and regular upkeep can significantly extend the life of your automatic transmission fluid and transmission.

An automatic transmission fluid change will typically take about 1 to 2 hours, depending on the vehicle and the service provider. This includes draining the old fluid, replacing the filter (if necessary), and refilling with new fluid. If more services or diagnostics are needed, it could take longer.

If your transmission fluid is low:

  • Check for leaks: Look for any visible leaks under the car.
  • Top up the fluid: Use the right type of fluid for your vehicle.
  • Monitor the fluid level: Regularly check the fluid level to make sure it stays within the recommended range.
  • Consult a mechanic: If the fluid level continues to drop speak to a mechanic so that they can inspect and fix any issues.