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.

Automatic Transmission Fluid Change for Citroën vehicles requires specialist tools and workshop facilities, so this work is completed through the RAC Approved Garage Network. Our approved garages service models such as C3, C3 Aircross, C4, C5 Aircross, and Berlingo, following manufacturer procedures, certified equipment standards and rigorous quality checks. You receive transparent pricing, progress updates and RAC‑backed guarantees.

Close up of an RAC Mobile Mechanic underneath a car
A mechanic standing inside a garage

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
A mechanic inspecting the underside of a vehicle.

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 can do for your Citroen

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.

A close up of an RAC mobile mechanic looking under the hood of a car

Try one of our RAC Approved Garages

SKS Auto Services Ltd

4.8/5

SKS Auto Services, owned by good friends and business partners Bradley Dawson and Nathan Hinks was established in 2005 and has a reputation for professionalism, technical expertise and quality workmanship.SKS are committed to honesty and always charge a fair price for the work we do. We only use parts equivalent in quality to the original part unless otherwise agreed and as a business we have also invested heavily in the latest technology and diagnostic equipment, meaning whatever the problem you have with your vehicle we will be able to resolve it. Our experienced technicians are always on hand to offer friendly advice and support.
14 Royce Road, Peterborough, PE1 5YB

Kmita Motors

4.0/5

We are a family run business providing excellent service to our customers. Our fully qualified and trained mechanics can offer all types of service repairs and diagnostic for any make of vehicle. We offer great service at affordable cost. Our mechanics hold a combined experience of motor vehicle repairs for over twenty years. They are fully trained and qualified, holding level 3 in motor vehicle repairs and obtaining a M.O. T Manager inspector certificate award.
85A Springhead Road, Northfleet, Gravesend, DA119QZ

Auto Solutions albion

4.8/5

AUTO SOLUTIONS is a family run garage which has been trading for over 25 years Based in East Kilbride, we are a well established and reputable company in the local area. All 3 of our time served technicians are IMI registered. We have the latest snap-on 3D wheel alignmetnt system and snap-on diagnostic equipment We cover East Kilbride and surrounding areas for car servicing and repairs, MOT testing and vehicle breakdown recovery. check our 100% feedback . Certificates Our certificate of registration for the Motor Industry Code of Practice means we comply with guidelines set out by the registered body. We are also a Servicesure certified garage which means we offer a national warranty.We offer low cost servicing that won't affect your warranty, meaning you won't have to pay dealership prices. This work is carried out according to the Block Exemption guidelines, which state that if car parts of a similar or better quality are used, then your warranty is unaffected. This allows us to offer you a fantastic service at a fantastic price! MOT Testing in East Kilbride As a VOSA registered testing station, we offer MOT testing in East Kilbride at a competitive price. We pride ourselves in offering mechanic apprenticeships on an ongoing basis. We feel it is important to bring young talent into the industry and help develop apprentices into fully qualified and professional mechanics that will provide an excellent service for you. To find out how to get involved with an apprenticeship, just send us a message!
20 Albion Way, East Kilbride, G750YN

HiQ Tyres and Autocentre (Peterborough)

5.0/5

HiQ Tyres & Autocare Peterborough is one of the most experienced tyre and autocare businesses in Peterborough. We specialise in the supply and fitting of leading tyre brands such as Goodyear, Michelin, Pirelli, Continental and Bridgestone whilst offering a range of Car Services, including: MOT, Major service, Full service and Interim car servicing, Wheel Alignment, Exhausts, Batteries, Brakes, Air-Con, clutches, brake pads, brake disks and more. Can't make it into store? we can Mobile Tyre Fitting straight to your door.
Unit 1 Maskew Avenue, Peterborough, PE12AS

Auto Solutions Axminster

4.4/5

The best in town - We are one of the leading vehicle repair, diagnostic & servicing garages across Devon, Somerset & Dorset. Based in Axminster we border 3 large counties making us appealing and convenient to a wide range of customers. If you want quality you would expect from the dealership, but with more personal and friendly atmosphere then you have found it. We have invested in all the latest specialist tools and diagnostic software that is specifically tailored for the software in your vehicle. Our Auto Repair shop is capable of servicing a variety of models. We only do the work that is needed for your problem.
Units 1, 2 And 3 Castle Gates, Castle Hill, Axminster, EX135RL

Frequently asked questions about 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.