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Diagnostic Check in Bolton

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Diagnostic Check

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Bolton Diagnostic Checks: Prices, Reviews & Local Insights

£64.87

Average price for a Diagnostic Checks in Bolton

4.73

average rating based on customer feedback.

2,000

customer reviews for garages in Bolton

How to book online

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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 Bolton

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 Bolton.

Don't know your vehicle registration?
Diagnostic Check
Church Wharf Garage Ltd Logo

Church Wharf Garage Ltd

Physical Garage

The Palace, Bury Old Road, Bolton, BL2 2BZ

About Us

At Church Wharf Garage we pride ourselves on our service, repair and MOT testing centre.. All our staff is fully qualified, having completed a nationally recognize apprenticeship. We have the latest diagnostic equipment enabling us to rectify most electrical problems.

Diagnostic Check£75

Book Now

4.83 (24 reviews)

Thynne Street Motors Logo

Thynne Street Motors

Physical Garage

Thynne Street, Bolton, BL3 6AY

About Us

With over 40 years’ experience, Thynne Street Motors can guarantee that your vehicle receives the best treatment whatever the problem. We offer a full range of services on all makes and models.

Diagnostic Check£40

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4.73 (29 reviews)

Reviews Summary

AI Generated

Reviews are overwhelmingly positive, with customers repeatedly praising friendly, knowledgeable staff, clear communication and reliable, quick MOTs and servicing. Many note fair prices, trustworthiness (mentioned by female customers), same‑day repairs and helpful explanations of work and options. A small minority reported issues — chiefly a cash‑only policy and occasional lack of paperwork or dissatisfaction with a major service — so it’s worth confirming payment methods and asking for written receipts.

C R Auto Repairs Logo

C R Auto Repairs

Mobile Mechanic

107 Bennetts Lane, Bolton, BL1 6JE

About Us

CR Auto Repairs – Your Local Mobile Mechanic in Bolton - AA approved At CR Auto Repairs, we take the stress out of car maintenance by bringing the garage to you. Based in Bolton and proudly serving the surrounding areas, we offer a fully mobile mechanic service that’s fast, reliable, and built around your schedule. Whether you're at home, at work, or stranded at the roadside, our expert mobile mechanic is just a call away. With years of experience in the motor trade, we provide a wide range of professional services including: Vehicle diagnostics Brake and clutch repairs Battery testing and replacement Oil changes and routine servicing Suspe

Diagnostic Check£60

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4.68 (43 reviews)

Reviews Summary

AI Generated

Customers consistently praise C R Auto for their honesty, professionalism and excellent value, with many highlighting the mechanic's willingness to explain work clearly, provide helpful advice and even identify cost-saving solutions rather than unnecessary replacements. The mobile service is particularly appreciated for its convenience, with reviewers noting prompt communication, flexible scheduling and efficient completion of jobs ranging from routine servicing to brake work and DPF cleaning. A small number of reviewers raised concerns about communication lapses, including unreturned calls, missed appointments and difficulty obtaining a refund, suggesting that follow-up could occasionally be more consistent.

Carsa HiQ Bolton Logo

Carsa HiQ Bolton

Physical Garage

Unit 1 Morris St, Bolton, BL2 2BL

About Us

HiQ Tyres & Autocare Bolton is one of the most experienced Tyre and Autocare businesses in the local area. We specialise in the supply and fitting of all leading tyre brands such as Goodyear, Dunlop, Michelin, Pirelli, Continental, Bridgestone and Cooper whilst offering a range of car services, including: MOT Class 4, Interim Service, Full Service, Major Service, Wheel Alignment, Exhausts, Batteries, Brakes, Clutches, Diagnostics, Air Con Regas and much more.

Diagnostic Check£65

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4.5 (33 reviews)

Reviews Summary

AI Generated

Customers frequently praise the garage for its efficient, professional service and friendly staff, with many highlighting quick turnaround times and good value for money. However, a small number of reviewers raised concerns about booking system issues and communication difficulties, particularly when trying to contact the Bolton site directly, which may benefit from clearer processes. Occasionally, disputes over pricing transparency were mentioned, though these appear to have been resolved after discussion.

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 Bolton. 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.

How can you save money (and the environment) while you drive?

As every garage owner will tell you, there are some tried and tested ways to cut down on your petrol costs (and consumption) while you’re out and about in Bolton or beyond. One is to shut your windows. If you can hear that wind noise in your car it’s costing you more to drive. This is because the car becomes less aerodynamic and has to work harder to motor along. Removing a roof rack will improve your fuel efficiency for the same reason. Another useful tip is to combine short trips into one; each time you drive after your car has been parked for a while the engine will be cold and need to use a lot more fuel for the first 5 miles or so. If you do one trip from school drop-off to supermarket to office you’ll use far less fuel than if you do all those trips individually.

Car Diagnostics in Bolton | Compare & Save | BookMyGarage