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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

£66.90

Average price for a Diagnostic Checks in Bolton

4.74

average rating based on customer feedback.

1,927

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
Quantum Autohaus Logo

Quantum Autohaus

Physical Garage

Mikar business park, Unit 6, Bolton, BL3 6NJ

About Us

Your Trusted Partner in Automotive Care At Quantum Autohaus, we pride ourselves on delivering top-tier car servicing with precision, transparency, and care. Whether you're in for a routine check-up or a more complex repair, our experienced technicians ensure your vehicle receives the attention it deserves. Our Services Include: Comprehensive Car Servicing From oil changes and brake inspections to full diagnostics and engine tuning, we keep your car running smoothly and safely. Repairs & Maintenance We handle everything from minor fixes to major repairs, using high-quality parts and the latest tools. Air Conditioning & Heating Systems St

Diagnostic Check£60

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4.99 (19 reviews)

AW General Motors Logo

AW General Motors

Physical Garage

Egerton Works, Egerton St, Farnworth, Bolton, BL4 7ER

Silver Tier Garage

About Us

AW General Motors is a garage located in Bolton, Farnworth, at Unit 5-6 Egerton Street, BL4 7ER. The garage offers a wide range of services including full car servicing, MOT testing, air conditioning repair, brake services, clutch repairs, and diagnostics for electrical issues. Known for its reliability, AW General Motors provides expert services for multiple car brands, including BMW, Audi, Ford, and Mercedes. They are open from Monday to Friday (9:00 AM to 5:00 PM) and on Saturdays until 1:00 PM

Diagnostic Check£60

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4.97 (37 reviews)

Reviews Summary

AI Generated

Customers rave about the garage’s friendly, professional team, praising quick, honest repairs, clear communication and good value for money, with many noting thorough MOTs and a clean, well‑organised workshop. Frequent strengths are helpful staff who explain work to non‑experts, prompt turnaround, competitive pricing and a willingness to go the extra mile (eg sourcing cheaper parts or fitting last‑minute MOTs). Few negatives appear — a small number reported timing hiccups or advised booking direct to save about £15 — otherwise complaints are rare.

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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4.86 (25 reviews)

Reviews Summary

AI Generated

Customers are overwhelmingly positive about Thynne Street Motors, frequently praising the friendly, knowledgeable team, clear communication and quick, good-value work. Many reviewers highlight trustworthy service, helpful explanations and prompt MOTs or repairs, with numerous recommendations and repeat custom. A small number raised concerns about paperwork, payment methods (cash only) and one reported a rushed, expensive major service with no documentation, so check receipts and payment options before you go.

Carsa HiQ Bolton Logo

Carsa HiQ Bolton

Physical Garage

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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4.85 (27 reviews)

Reviews Summary

AI Generated

Friendly, helpful and professional staff — frequently named in reviews — and fast, efficient MOTs and repairs are the standout positives customers keep mentioning. One lone 1‑star review describes a lost booking and refusal to change bulbs, suggesting an occasional communication or service lapse rather than a widespread problem.

Specialist Smart Repairs Ltd Logo

Specialist Smart Repairs Ltd

Physical Garage

Spring Street Business Park, Unit 7 St Marks Street, Bolton, BL3 6EJ

About Us

Welcome to Specialist Smart Repairs, where quality meets efficiency! We take pride in delivering exceptional service and ensure your repairs are completed on the same day. Trust us to get the job done right, quickly and effectively. Experience the difference with our dedicated team today! Visit our new Smart Repairs Centre in Bolton. At our business, we take immense pride in the quality of work we deliver. By utilizing only the highest-grade products for your vehicle, we ensure a premium finish that exceeds expectations. Your satisfaction is our priority, and we strive to achieve excellence in every detail. Trust us to elevate your vehicle

Diagnostic Check£60

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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.