Header Background Image

Diagnostic Check in Oxford

Excellent

Let’s go!
Don't know your vehicle registration?
Diagnostic Check

Instantly compare diagnostic deals from garages near you & book online

Like for like comparison

Like for like comparison

Instant Prices

Instant Prices

No Upfront Payment

No Upfront Payment

Book around the clock

Book around the clock

Transparent reviews & ratings

Transparent reviews & ratings

Oxford Diagnostic Checks: Prices, Reviews & Local Insights

£85.33

Average price for a Diagnostic Checks in Oxford

4.54

average rating based on customer feedback.

420

customer reviews for garages in Oxford

How to book online

ENTER

ENTER

your vehicle reg & post code.

COMPARE

COMPARE

instant prices for your MOT, service or repairs

BOOK

BOOK

your preferred date & time in 1 step.

NO PAYMENT

NO PAYMENT

taken - only when the work is complete*

*some mobile technicians will contact you prior to your appointment to take payment in advance.

Top Garages for Diagnostic Check in Oxford

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 Oxford.

Don't know your vehicle registration?
Diagnostic Check
Greenwoods Of Garsington LTD Logo

Greenwoods Of Garsington LTD

Physical Garage

54 Pettiwell, Garsington, Oxford, OX44 9DB

Silver Tier Garage

About Us

Welcome to Greenwoods Of Garsington, your local family run car garage! With over 20 years experience you can rest assured you are in safe hands!

Diagnostic Check£60

Book Now

4.97 (86 reviews)

Reviews Summary

AI Generated

Customers consistently praise the garage for friendly, professional staff and efficient, well‑communicated MOTs and services—many mention quick turnaround, easy online booking and good value. Reviewers repeatedly note clear explanations, helpful advice when a vehicle fails, and convenient collection/drop‑off, describing the team as honest and knowledgeable. A few minor complaints about limited space and occasional busyness appear, but these rarely seem to affect overall service quality.

First Stop Spanner Works Logo

First Stop Spanner Works

Physical Garage

Spanner Works Oxford,, 27-31 Ferry Hinksey Rd,, Oxford, OX2 0BY

About Us

First Stop Spanner Works Oxford we offer a complete range of car services, including; tyres, MOT, batteries, exhausts, servicing, wheel alignment, brakes, clutches, accessories, oil + filter, air conditioning, air conditioning top up, shocks & suspension, air bags, steering, vehicle health check, tyre pressure monitoring, VSS, on board diagnostics, and much more. Our highly-trained specialists will treat your car as if it’s their own. So you can be sure you’ll get the best possible service and leave with your car in tip top condition. We also can do motorbike and mopeds MOT's.

Diagnostic Check£45

Book Now

4.71 (66 reviews)

Reviews Summary

AI Generated

Reviews are overwhelmingly positive, with many customers praising fast turnaround, friendly, transparent staff and honest MOTs — often at short notice or same day. Strengths frequently mentioned are clear communication, competent workmanship, good value (including fair tyre work) and helpfulness such as roadside assistance or allowing extra parking. A handful of negatives crop up — occasional unexpected small charges, inconsistent opening hours/closures and one unresolved aircon recharge — but these are rare compared with the bulk of favourable feedback.

OXFORD CAR CARE LIMITED Logo

OXFORD CAR CARE LIMITED

Physical Garage

The Windmill, Thame Road, Great Haseley,, Oxford, OX44 7JU

About Us

Oxford Car Care was established in 1987. The company started off based in Oxford near Risinghurst, and then in early 1989, Oxford Car Care re-located to Great Milton due to the expanding success of the company. Oxford Car Care is widely regarded as one of Oxford's most driven and skilled work force in the repair and car sales industry. Although the company has grown and invested significantly over the years to become one of the key players in the industry, we offer dealer services but without dealer prices. We pride ourselves on the fact that we have managed to retain the core ‘family’ values that our business was built upon, by trying to pr

Diagnostic Check£60

Book Now

5 (26 reviews)

Johnsons Hyundai & Mazda Oxford Logo

Johnsons Hyundai & Mazda Oxford

Physical Garage

New Barclay House, 234 Botley Road, Oxford, OX2 0HP

About Us

No matter what car, new or used, from us or not our technical experts can ensure that your car is cared for properly. Our services range from a basic/interim service to a full/major service. Johnsons dealerships are well equipped with state-of-the-art facilities to ensure we provide the best diagnostic and mechanical attention.

Diagnostic Check£120

Book Now

4.53 (9 reviews)

Johnsons Hyundai Oxford Logo

Johnsons Hyundai Oxford

Physical Garage

New Barclay House, 234 Botley Road, Oxford, OX2 0HP

About Us

No matter what car, new or used, from us or not our technical experts can ensure that your car is cared for properly. Our services range from a basic/interim service to a full/major service. Johnsons dealerships are well equipped with state-of-the-art facilities to ensure we provide the best diagnostic and mechanical attention.

Diagnostic Check£120

Book Now

4.2 (5 reviews)

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 Oxford. 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.

 

If you’re new to the area or just looking for a bit more guidance about driving in the city, we have everything you need to know about Oxford’s Zero Emissions Zone in this article.

 

How to be a better driver

Whether you’re driving in Oxford or further afield, think about road user etiquette. Showing respect for other road users makes driving more pleasant for you and safer for everyone. For example, if you have to make a last minute change of lane, make your request to change clear to the driver who will need to let you in - and signal your thanks if they do. Be ready to abandon the change of lane if they won’t play ball - your safety (and that of other drivers and pedestrians) is more important than getting to your destination in the shortest time possible. When the position is reversed and a driver asks your permission to change lanes, allow them to as long as it is safe. If you get frustrated, avoid using your horn - it won’t improve matters and might make them considerably worse.