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Milton Keynes Diagnostic Checks: Prices, Reviews & Local Insights
£81.28
Average price for a Diagnostic Checks in Milton Keynes
4.75★
average rating based on customer feedback.
2,032
customer reviews for garages in Milton Keynes
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Johnsons Honda Milton Keynes
Physical Garage
The Honda Centre, Greyfriars Court, Kingston, Milton Keynes, MK10 0BN
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
4.57 (7 reviews)
Evans Halshaw BYD Milton Keynes
Physical Garage
Northfield Drive, Northfield, Milton Keynes, MK15 0DQ
About Us
At BYD Milton Keynes you can expect simple, straight forward service, repair and tyre prices, with an online booking tool and a price guarantee. As a BYD main dealer, our specialty lies in BYD aftercare, but we also welcome other makes and models. We offer same day services and repairs with online payment to make things really pronto. Our expert technicians will carry out a thorough video vehicle health check with each workshop visit. Servicing and maintenance costs can be spread into interest free monthly payments with our Service Plan.
Diagnostic Check£78
3.67 (12 reviews)
Reviews Summary
AI Generated
Customers frequently praise the garage for friendly, helpful staff (several mention a standout member, Sophie), thorough and efficient servicing, good value and quick turnarounds — one even noted a complimentary wash and vacuum. Several reviewers, however, report booking and communication problems: last‑minute cancellations, no confirmation from the call centre, poor responsiveness to complaints and a few MOT handling errors. The balance of feedback is positive, but if reliable appointments and prompt post‑service support matter to you, double‑check bookings beforehand.
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 Milton Keynes. 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.
Driving in Milton Keynes
Designed originally to accommodate London overspill and housing congestion, Milton Keynes or ‘MK’ as it is locally known, has shed its concrete new town image and flowered into a creative and cultural hub with a thriving music, arts and literature scene.
Milton Keynes’ excellent shopping facilities keep footfall high at thecentre:mk which boasts over 300 shops and is one of the longest indoor shopping centre malls in Europe. The town has also become an extreme sports hotspot. You can water-ski, wakeboard and enjoy other water sports on Willen Lake, or head to Xscape for the UK's longest indoor real-snow ski and boarding slope, along with some superb indoor climbing facilities.