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Diagnostic Check in Newport

4.8 · Excellent

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Diagnostic Check

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Newport Diagnostic Checks: Prices, Reviews & Local Insights

Real-time data from live garage profiles on BookMyGarage.com

£99.00
Average diagnostic checks price128th in South East
4.89
Average customer ratingBased on verified feedback
227
Customer reviewsFor garages in Newport
300+
drivers compared prices to book their diagnostic checksin Newport in last 12 months
1
Verified garage in Newport46th in South East

Top Rated

1Best Garages Newport 4.9

Most Reviewed

1Best Garages Newport227 Reviews
1
Garage offering Diagnostic Checks

Top Garages for Diagnostic Check in Newport

Find the perfect garage for your vehicle with detailed information, reviews, and real-time availability.

Tailor your results by entering your reg and postcode

Then sort by location, availability, ratings, and price to find your ideal garage in Newport.

Don't know your vehicle registration?
Diagnostic Check

1 garage available in your area

Best Garages Ltd Logo
Best Garages Ltd

Physical Garage

Unit 6 Hurstake Road, Riverside Industrial Estate, Newport, PO30 5UU

About Us

£25 MOT WHEN BOOKED WITH A FULL OR MAJOR SERVICE We now Service Electric and Hybrid vehicles. Please book early to take advantage of this service as availability will be limited. Thank you to all our customers for your support.

Diagnostic Check£99

Book Now

4.89 (227 reviews)

Reviews Summary

AI Generated

Customers consistently praise the friendly, approachable staff and the efficient turnaround that gets vehicles back promptly. The team's willingness to accommodate arrival times and offer competitive pricing also stands out across multiple reviews. No notable weaknesses were raised in this period, reflecting a strong and reliable service.

5.0/5.0
Verified
“Excellent garage”
Would recommend
Review left: 04/10/26
4.0/5.0
Verified
“Good job completed”
Would recommend
Review left: 08/08/26
4.8/5.0
Verified
“Go here if you have a Land Rover!!”
Would recommend
Review left: 27/07/26

How It Works

1. Search

Simply enter your reg and postcode to compare garages near you.

2. Compare

Check reviews, prices and availability — all in one place.

3. Book

Book online in seconds with no upfront payment required.

Every BMG-Verified garage meets our standards for service, reliability, and transparency.

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 Newport. 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.

What do you need from your garage?

This might sound like a question with an obvious answer: you need a garage that can service or repair your car quickly and at a good price. But think again and you may realise there are other factors that affect your choice of garage in Newport. If you need to bring your son or daughter with you when you take your car in, are there toys in the waiting room? If you’re dropping the car off between school and work, can you pick up a cup of coffee while you’re there? Might the garage even collect your car and drop it back at your house after the work is done? You can find answers to all these questions on BookMyGarage.

★ 4.9
out of 5
227
verified reviews
£99.00
from

“Nice friendly staff, work was carried out quickly so I could have my car back. Will use again thank you”

– Jackie, BMG-Verified review

Why Best Garages Newport Stands Out

✓ IMI registered✓ Motorcodes member✓ RMI member✓ Waiting area available✓ Loan car available✓ Collection & delivery

Opening Hours

Mon–Thu08:00 – 17:00Fri–SatClosedSun08:00 – 17:00

*All information accurate as of October 8th 2026