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Diagnostic Check in Slough

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Diagnostic Check

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Slough Diagnostic Checks: Prices, Reviews & Local Insights

£76.00

Average price for a Diagnostic Checks in Slough

4.78

average rating based on customer feedback.

1,780

customer reviews for garages in Slough

How to book online

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ENTER

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COMPARE

instant prices for your MOT, service or repairs

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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 UK Garages for Your Diagnostic Check

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 Slough.

Don't know your vehicle registration?
Diagnostic Check
C&G Autos Slough Logo

C&G Autos Slough

Physical Garage

78-80 Church St, Chalvey, Slough, SL1 2PE

About Us

Have your car serviced and repaired by Slough's most trusted garage. Our aim is to provide you with excellent customer service and expert repairs, so you can be conifdent that you, and your car, are safe on the road. We provide you with video updates so your always kept in the know about your vehicle. You can also spread the cost of your service or repair over 4 months interest free, with an over 90% acceptance rate. *For invoices over £350. Subject to terms and conditions.

Diagnostic Check£78

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4.99 (256 reviews)

Reviews Summary

AI Generated

Customers consistently praise C&G Autos for friendly, professional and knowledgeable staff (frequently naming Chris, Dan and Pinder), honest advice and fair, transparent pricing. Reviewers commonly highlight quick turnaround, clear communication, flexibility for short‑notice MOTs/repairs and high‑quality workmanship — plus small touches like complimentary tea and biscuits that reinforce the family‑run feel. There are virtually no complaints in this sample; the only minor suggestion mentioned was to improve booking reminder timing.

Dropless Logo

Dropless

Mobile Mechanic

268 Bath Road, Slough, London, SL1 4DX

About Us

Say Goodbye to Hassle – Say Hello to Dropless! At Dropless, we’re revolutionizing the way you experience car servicing and repairs. Our mission? To put trust back into your relationship with your mechanic. Here's how: Upfront Pricing: No surprises, no hidden costs – just honest, transparent pricing from the start. Crystal-Clear Communication: We keep you informed every step of the way – before, during, and after the service. Mechanics Who Care: Our expert mobile mechanics genuinely love helping customers and are committed to delivering exceptional service. With years of experience under our belt, our skilled and friendly team is equipped

Diagnostic Check£60

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4.75 (251 reviews)

Reviews Summary

AI Generated

Customers overwhelmingly praise the at‑home, time‑saving service — mechanics are repeatedly described as polite, knowledgeable and punctual, with clear communication and very competitive pricing. Frequently noted strengths are convenience, quick and efficient work, good value and helpful explanations; reported weaknesses include occasional poor follow‑up or communication, missing parts/checks and a few serious quality or aftercare issues (e.g. oil spills, missed faults). Most ratings are high, but a small minority of low scores flag problems that the garage should address.

Johnsons Honda Slough Logo

Johnsons Honda Slough

Physical Garage

748-749 Dover Road, Slough, SL1 4RF

About Us

Johnsons Honda is committed to great service. Your local Johnsons Honda garage in Milton Keynes, Oxford or Slough is well equipped and can carry a range of maintenance including regular services, diagnostics and repairs.

Diagnostic Check£120

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4.52 (119 reviews)

Reviews Summary

AI Generated

Customers are largely positive, frequently praising friendly, professional staff, clear communication (often including video health checks), quick turnaround, complimentary valets and comfortable waiting facilities, with many noting good value compared with main dealer prices. Recurring issues include booking confusion or last‑minute cancellations via BookMyGarage, inability to perform or reset certain non‑Honda work, extra collection/delivery charges, and occasional mistakes such as missed service items, invoice discrepancies or isolated damage.

Crankstart Ltd Logo

Crankstart Ltd

Physical Garage

Wexham Wharf, Wexham Road, Slough, SL1 1RW

About Us

CAR SOLUTIONS FOR ALL YOUR MOTORING NEEDS CUSTOMISED SERVICE WITH YEARS OF EXPERIENCED CAR TECHNICIANS

Diagnostic Check£80

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4.9 (53 reviews)

Reviews Summary

AI Generated

Glowing praise dominates the reviews, with the vast majority awarding five stars for friendly, helpful staff and reliable, transparent diagnostics. Customers repeatedly praise prompt MOTs and quick repairs, fair pricing, willingness to fit in urgent jobs, useful extras (eg tyre-pressure checks) and a comfortable waiting area. A small number of comments mention poor appointment communication or occasional staffing/busyness issues, but these are rare compared with the overwhelmingly positive feedback.

XA Car Ltd Logo

XA Car Ltd

Physical Garage

353 Bath Rd, Slough, SL1 5PR

About Us

At XA Cars Ltd, we pride ourselves on delivering reliable, professional, and affordable automotive services to keep you safely on the road. Our skilled technicians are experienced in working on all makes and models, offering everything from routine servicing and MOTs to complex diagnostics and repairs. We combine the latest tools and technology with a commitment to honest, transparent advice, ensuring every customer receives the highest standard of care. Whether you need a quick check-up, new tyres, or major repairs, you can count on us for efficient service and competitive pricing. Customer satisfaction is at the heart of what we do, which

Diagnostic Check£60

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5 (5 reviews)

One Stop Auto Solutions Logo

One Stop Auto Solutions

Physical Garage

2 Chalvey Road East, Slough, SL1 2LX

About Us

One Stop Auto Solutions is a garage based in Slough

Diagnostic Check£60

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5 (20 reviews)

AA MOT & Service Centre Logo

AA MOT & Service Centre

Physical Garage

2A St Pauls Ave, Slough, SL2 5ES

About Us

AA MOT & Service Centre is a friendly garage located in Slough offering great customer service

Diagnostic Check£50

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4.99 (25 reviews)

Rosewood Garage Logo

Rosewood Garage

Physical Garage

4b Kelpatrick Road, Cippenham, Slough, SL1 6BW

About Us

Rosewood Garage is a family-run independent garage that has been maintaining cars and vans in the Slough area for almost 17 years. We are your local, trustworthy one-stop solution for all things automotive. From tires and brakes to servicing and MOTs, we do it all onsite at a price you'll love! Our team has over a century of combined experience working on every make and model, servicing, diagnosing faults, and carrying out repairs on every manufacturer. Why not give us a call today to discuss any needs you may have?

Diagnostic Check£54

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4.94 (47 reviews)

Reviews Summary

AI Generated

Customers repeatedly praise Rosewood Garage for friendly, helpful staff, fast turnaround and clear communication, often highlighting fair/competitive pricing, honest advice and quality workmanship across services (MOTs, diagnostics, brakes, DPF and bodywork). Many reviewers note the team’s willingness to fit in last‑minute jobs and give straightforward explanations, which generates lots of repeat custom and strong recommendations. Only occasional minor gripes appear — a missed morning callback or brief admin hiccup — but these are rare compared with the overwhelmingly positive feedback.

MasterTech AutoCare - Bosch Car Service Logo

MasterTech AutoCare - Bosch Car Service

Physical Garage

Unit 1 White Hart Rd, Slough, SL1 2SF

Silver Tier Garage

About Us

Masters Autocare Centre is the most trusted local mechanic garage in Slough with glowing reviews and a strong local reputation. We’re dedicated to providing high-quality car repairs services for all of our customers, offering a team of skilled mechanics with decades of experience who are equipped with the latest state-of-the-art equipment. As one of the best mechanics in Slough, we’re confident that we can help you keep your vehicle running smoothly and safely on the road at affordable prices. From routine maintenance to complex repairs, we offer a comprehensive range of services to help you keep your car in optimal condition. With our all-i

Diagnostic Check£50

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4.65 (46 reviews)

Reviews Summary

AI Generated

Customers are overwhelmingly positive — most give five stars and praise quick, efficient work and friendly, helpful staff. Common strengths mentioned are speedy turnaround (often same‑day), good value for money, convenient collection/drop‑off, knowledgeable technicians and a comfy waiting area. A minority flag weaknesses: occasional poor communication or professionalism, booking/availability mix‑ups (notably a wheel‑alignment issue), unclear service reporting and limited parking or opening hours.

TM Auto Service ltd Logo

TM Auto Service ltd

Physical Garage

846 - 847 Plymouth Road, Slough Trading Estate, United Kingdom, Slough,, SL1 4LP

About Us

We’re a well-established independent garage in Slough that can provide MOT testing, repairs and services for your vehicle. We care about our customers and that’s why we offer excellent services at great prices. We’ll always be upfront and return your vehicle to you in a timely manner.

Diagnostic Check£60

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4.45 (15 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 your local area. 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.