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 Cambridge

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

Shire Hill Garage Ltd

4.9/5

Here at Shire Hill we use the latest diagnostic equipment, meaning that we can accurately detect what is wrong and suggest how best to make any necessary repairs. We specialise in clutch and electrical problems, and we also offer air conditioning diagnosis and repair. For honest, accurate services and affordable MOTs, bring your vehicle to Shire Hill Garage. We service all makes of cars and vans, with a highly qualified, experienced team offering a broad knowledge of different makes and models. rom cam belt replacements to air con repairs, Shire Hill Garage is the place to bring your car for extended maintenance and repairs. Just contact us for some friendly advice and to book your vehicle in for an appointment.
1 The Shires, Saffron Walden, CB11 3AN

Mitchells Motors Repairs Ltd

4.8/5

MITCHELL'S Motor Repairs is Haverhill's leading independent garage, the only AA & RAC Approved and Trading standards approved independent garage in the area giving you peace of mind. Here at MITCHELL'S we put the customers best interest in everything we do to give cost effective repairs & maintenance, exceptional customer service and have workshops with the latest diagnostic equipment and Technicians trained to manufacture standards. We have been serving the local community of Haverhill and the surrounding villages for 30 years with 3 generations on the Mitchell family working passionately within the business. As we say.... 'You're in safe hands'
20-22 Hollands Road, Haverhill, Suffolk, CB98PP

Cambridge Smart Cars

4.7/5

Cambridge Smart Cars LTD are a used car dealer and autocentre based in Fulbourn, Cambridge. We are proud to offer you a full range of services which include vehicle MOT, Servicing and Tyres at very competitive rates, so please have a look through our current stock or book your existing vehicle in for repairs and maintenance. At Cambridge Smart Cars LTD, we try to stock a range of used cars and even vans, we could find you your next vehicle, just let us know what you are looking for. We will go the extra mile to guarantee that you receive the best customer service and advice you need to keep your car safe and reliable. We have a great customer base and this is the reason many of our customers keep coming back to us.
3-6 Breckenwood Road, Fulbourn, CB21 5DQ

A G Toft Garage Ltd

4.4/5

We are a family run garage in the village of Bourn, Cambs. Our team collectively has over 100 years of experience and is dedicated to delivering every customer an outstanding experience. We specialise in welding and also major mechanical rebuilds, however, we cover a wide variety of repairs and services on all makes and models. All our parts come under manufacturer warranty. Established in 1985, our technicians are people you can trust for honest advice and trusty repairs. Throughout the process of repairs, we always keep you in the loop and discuss various options. We have local transport links nearby but if you wish to wait while we work on your car, we have a comfortable waiting room where you can enjoy refreshments and free WIFI.
Ag Toft Garage, 36 Gills Hill, Bourn, CB232TS

Winthorpe Ltd

3.5/5

If you’re looking for a reliable car garage in Ely or Littleport, look no further than Winthorpe Limited, we are specialists in a wide range of garage services including MOTS, Car Servicing, Car Repairs, Tyres and Car Batteries in Ely. Established in 2005, we provide an honest and reliable service at all times, proud to be recognised as a highly reputable car garage in Ely and Littleport. At Winthorpe Limited, we have worked hard to build a reputation for offering a trusted and “value for money” service to all our customers in Ely and Littleport. We understand the importance of good customer service, with the majority of our work gained through positive word of mouth and repeat custom. All of the services, repairs and MOTs are carried out under one roof allowing you to feel safe and confident that you and your vehicle are in expert hands and pride ourselves on the work that we do.
Unit 9 Chettisman Bus Park, Lynn Road, CB6 1RY

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.