Instantly compare Renault Diagnostic Check prices in your local area to find the best deal.

No need to ring around, hang on the phone or wait until the garages are open – search for, compare and book a garage for your Renault that best suits your needs, based on price, distance, availability and verified reviews.


Booking Made Simple

No upfront registration required, simply enter the vehicle registration number of your {make} and postcode, compare prices, choose a local garage and book your Diagnostic Check.

Pay on the Day

You can find the best deal in your area and you won’t pay a penny until all of the work is complete, at which point you will pay the garage directly.

4.8★ Rating on Trustpilot

We’ve provided instant prices for MOT, servicing and repairs to over 5 million UK drivers. With so many satisfied customers, it’s no surprise that we have a 4.8★ rating on Trustpilot and hundreds of 5★ reviews.

What Renault motorists are saying about our garages

22/03/23

Great service

For: S W B Autos Ltd

“We are a regular customer for them..”

Would recommend

22/03/23

help full and efficient

For: Hares Servicing and Repairs

“Easy to book MOT/service, good comunication and a fair cost”

Would recommend

22/03/23

Easy MOT

For: HiQ Tyres & Autocare Maidenhead (Barnside Motors)

“Easy to book, good communication from garage, all worked well”

Would recommend

What does a car diagnostic check do?

A diagnostic check is carried out on your vehicle by a mechanic, who will plug your vehicle into a specialised code reader. It can detect problems with your vehicle which may be difficult to spot manually.

The main components which are tested in a diagnostic check are the car’s:

  • electronic control units (ECUs) - these control various element of the car and its performance including engine running
  • emissions and exhaust sensors
  • braking system
  • electrical components such as central door locking
  • transmission if electronically controlled
  • ignition coils
  • throttle setting
  • fuel injectors
  • air flow and coolant

 

Why is a car diagnostic check important?

A diagnostic check is very important as it can detect a potential problem with your car, even before a breakdown. The computerised equipment scans your vehicle’s system to check for any faults, no matter how minor or major. A diagnostic test is a quick, easy and accurate way to discover any faults and will give you the chance to get them fixed before they turn into bigger and more expensive issues. When your car has a fault, this may show as a warning light on the dashboard. If the light goes out the system will store the fault code so the garage will find this when they do the diagnostic check.

What are the possible signs that your car needs a diagnostic check?

There are many different signs which will indicate that your vehicle needs a diagnostic check. Essentially, if you suspect that there is an issue with your car but don’t know what, you will probably want to book a diagnostic check to find out what the problem is. Here are some of the key signs:

  • Engine warning light - if the engine warning light appears on your dashboard, it’s important to take your vehicle to a garage as soon as possible as there is a wide variety of problems which the light may be flagging up.
  • Strange noises – any strange noises coming from your car need to be checked out before they turn into more serious problem. Some of these sounds may include; whining from the bonnet, abnormally loud exhaust, uneven engine noise, brake squealing or gear crunching.
  • Smoke - if you see smoke or steam coming from under the bonnet, your vehicle may be overheating.
  • Vibrating - if you notice any vibrating or pulling under your brake, the issue may be due to work brake discs or pads. However, it could also indicate a problem with your suspension or steering.

 

How long do car diagnostics take?

You can expect a diagnostic check on your car to take approximately 90 minutes. You may want to allow for more time though as the mechanic who will be carrying out the check might not be available to start right away.

How much does a car diagnostic check cost?

The price of a car diagnostic test can vary, depending on the garage that you visit. Each garage has a fixed price for diagnostic checks, ranging from £30 - £100.

Enter your vehicle registration number and post code into BookMyGarage (at the top of this page) and you can instantly compare diagnostic check pricing from all of the garages in your local area. As well as price, you can see the garages’ reviews, distance from your post code, extra services offered and availability. You don’t even have to register to get access to all of this information. When you have selected a suitable garage, you can choose a date, any optional extras (such as collection and delivery, loan car etc.) and book online.

About Renault

Another French company churning out good-looking vehicles, Renault has been in the business of making cars since 1899. The alliance of Renault with Nissan (conveniently called the Renault-Nissan Alliance) make up the fourth largest automotive group in the world.

Renault is also widely known for its role in motor sport, particularly Formula 1. Early work on mathematical curve modelling used on Renault car bodies is an important, but little known, part of the history of computer graphics. Renault began to take part in motorsport early in the 20th century, largely due to Marcel Renault’s own interest in the sport. Over the years, Renault acquired multiple companies with sporting connections, and in the 1970s set up its own dedicated motorsport division, Renault Sport, winning both the Le Mans 24 Hours race and the Renault Alpine A442.

But back to the world outside of motor sport! Back in 2013, the newest Renault vehicles had the lowest average CO2 emissions among European generalist brands, average at 110.1g/km.

How does BookMyGarage work?

By using the UK’s leading garage comparison site you can...

Instant prices

Get instant prices

Pick your service, MOT or repair and compare the prices and reviews of garages in your area.

Select date

Book the date you want

You can pick a time and date, enter your details and book online, 24/7 - even when the garage is closed.

Pay when the work is done

Don't pay until the day

No credit card required. Just pay the garage directly, once they have completed the work.

Leave a review

Rate your experience

If you would like, let others know about your experience and rate your garage for value, quality and helpfulness.

Get Started Today!

Enter your vehicle registration number, the service you need and your postcode below to compare garages on prices, location, reviews and availability!

Don't know your vehicle registration?

No upfront payment · No upfront registration · No booking fees