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Diagnostic Check in Plymouth

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Plymouth Diagnostic Checks: Prices, Reviews & Local Insights

Real-time data from live garage profiles on BookMyGarage.com

£71.35
Average diagnostic checks price54th in South West
4.71
Average customer ratingBased on verified feedback
2,235
Customer reviewsFor garages in Plymouth
18,000+
drivers compared prices to book their diagnostic checksin Plymouth in last 12 months
5
Verified garages in Plymouth3rd in South West

Top Rated

1Sutton road MOT centre 5.0
2SW Motors Plymouth 4.9
3Marshall Motors SW Ltd 4.9

Most Reviewed

1A Gregory Vehicle Service And Repair663 Reviews
2HiQ Tyres & Autocare Plymouth558 Reviews
3Marshall Motors SW Ltd517 Reviews
17
Garages offering Diagnostic Checks
1
Garage open outside standard hours
5
Garages open on Saturdays
8
Garages offering collection & delivery

Top Garages for Your Diagnostic Check in Plymouth

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 Plymouth.

Don't know your vehicle registration?
Diagnostic Check

17 garages available in your area

Marshall Motors SW Ltd Logo
Marshall Motors SW Ltd

Physical Garage

26 Valley Road, Plympton, Plymouth, PL7 1RF

Gold Tier Garage

About Us

Marshall Motors SW LTD is an independently run business that prides itself on offering unrivaled sales, services, MOTs and mechanical repairs to its customers in the local area and further afield. We offer a comprehensive range of services so whether you need to book an MOT, have your car inspected for its annual check over, or if you have an urgent problem that needs attention, our team of highly specialised mechanics are on hand to fulfill your requirements.

Diagnostic Check£50

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4.9 (517 reviews)

Reviews Summary

AI Generated

Customers consistently praise this garage for its friendly, welcoming staff, efficient turnaround times, and excellent value for money, with many noting they have been loyal customers for years and regularly recommend it to friends and family. Communication throughout the booking and servicing process is frequently highlighted as a particular strength. A small number of reviewers felt that explanations of advisory or fault details could be more thorough, and one customer mentioned that service books have occasionally not been stamped, so the garage may benefit from ensuring these finishing touches are reliably completed.

5.0/5.0
Verified
Excellent service
Would recommend
Review left: 03/09/26
5.0/5.0
Verified
Great service
Would recommend
Review left: 19/08/26
5.0/5.0
Verified
Full service with great service and efficiency, and friendly.
Would recommend
Review left: 15/08/26
A Gregory Vehicle Service And Repair Logo

Unit 11 Miller Court, Millbay, Plymouth, PL1 3LQ

About Us

We are a family-run business and we specialize in Servicing and MOT's for all makes and models. We also offer a vehicle recovery service. If you need your vehicle bringing to the garage, we can arrange this for you. All mechanical work undertaken!!!! Should your vehicle require any work you will be given a full quotation and work will only then start with your permission. All our staff are fully qualified and will complete your vehicle to the highest of standard. Thank you for choosing A Gregory Service & Repair for all of your vehicles needs. Mot testing station, mot in Plymouth, mot garage in Plymouth. AA Approved Service Centre.

Diagnostic Check£58

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4.81 (663 reviews)

Reviews Summary

AI Generated

Customers consistently praise this garage for its friendly, professional staff, clear communication and competitive pricing across a wide range of work including MOTs, services and air conditioning regassing. The vast majority of reviewers highlight how promptly jobs are completed and how well they are kept informed throughout, with many noting they will return as loyal customers. A very small number of reviewers mentioned minor administrative points, such as invoices potentially benefiting from itemised parts costs and the occasional pricing discrepancy at the point of payment, but these are isolated observations that do little to detract from an overwhelmingly positive reputation.

5.0/5.0
Verified
Great service
Would recommend
Review left: 03/09/26
5.0/5.0
Verified
Great service
Would recommend
Review left: 30/08/26
5.0/5.0
Verified
My second visit was as good as the first
Would recommend
Review left: 26/08/26
HiQ Tyres & Autocare Plymouth Logo

UNIT 202-216, FARADAY MILL BUSINESS PARK, PLYMOUTH, PL4 0ST

Silver Tier Garage

About Us

At HiQ Plymouth we are proud to be a Trading Standards and RAC approved garage. Here at HiQ Plymouth, we offer MOT'S, vehicle repairs and servicing for individuals, companies and businesses across Devon. We stock leading tyre brands such as Goodyear, Dunlop and Sava along with other leading tyre brands. Whether you have one vehicle or a fleet of vehicles, we can help you out. Our team of professionals work to achieve complete customer satisfaction with high standards of workmanship in all the work we undertake and are incredibly proud of our reviews and also ‘Proud to be HiQ’

Diagnostic Check£99

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4.8 (558 reviews)

Reviews Summary

AI Generated

Customers consistently praise this garage for its friendly, professional staff and welcoming atmosphere, with several regulars highlighting the honest advice, efficient turnaround times, and competitive pricing. The clean environment and ease of booking are frequently mentioned as added bonuses, and the team's willingness to accommodate last-minute appointments clearly leaves a strong impression. One reviewer did raise a concern about not being notified promptly when their vehicle was ready, and the garage may benefit from ensuring customers are proactively updated once work is complete, though this appears to be an isolated experience.

5.0/5.0
Verified
Amazing customer service, great value for money!
Would recommend
Review left: 13/06/26
5.0/5.0
Verified
Great service
Would recommend
Review left: 19/05/26
5.0/5.0
Verified
Great service
Would recommend
Review left: 11/05/26
SW MOT LTD Logo
SW MOT LTD

Physical Garage

40, George Place, Plymouth, PL1 3NY

About Us

At Whites Autocentre Garage, we offer full car service and a half car service for any type of vehicle at our local family run garage based in Plymouth. We don’t just cover car servicing, we offer many other services such as MOT testing at our Plymouth garage.

Diagnostic Check£45

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4.53 (178 reviews)

Reviews Summary

AI Generated

Customers consistently praise the garage's friendly, professional staff and quick turnaround times, with many highlighting competitive pricing and excellent communication throughout MOT and service appointments. Several reviewers appreciate the team's flexibility in accommodating last-minute bookings and their transparent approach to explaining repairs, with some noting efforts to keep costs down by sourcing affordable parts. A small number of customers raised concerns about pricing discrepancies between online quotes and final bills, occasional booking confusion, and one instance where collection service didn't materialise as arranged, suggesting communication around bookings could benefit from greater consistency.

4.0/5.0
Verified
Little detail
Would recommend
Review left: 26/08/26

Reply from SW MOT LTD

Thank you for your feedback. We can confirm that everything included in the Full Service was carried out, and all the work completed was listed on your invoice. The measurements you mention, such as tyre tread depth, CO percentage and coolant density, are not routinely recorded on our invoices unless there is a specific issue or they require attention. The invoice therefore provides a record of the service items that were completed. We appreciate your comments and hope this clarifies the matter.

5.0/5.0
Verified
Good service
Would recommend
Review left: 08/07/26

Reply from SW MOT LTD

Thank you, Nathan, for taking the time to leave us such a fantastic review. We’re really pleased to hear you were happy with the service and that we could get your brake pads replaced quickly without any unnecessary upselling. We always aim to provide honest advice, competitive prices, and friendly customer service. We really appreciate your recommendation and look forward to helping you again in the future. Safe driving! 🚗

5.0/5.0
Verified
Value for money
Would recommend
Review left: 02/07/26
Sutton road MOT centre Logo
Sutton road MOT centre

Physical Garage

Unit 1-9, 8 Sutton Rd,, 8 Sutton Rd,, Plymouth, PL4 0HE

About Us

Our Mission At Sutton Road M.O.T Centre, our mission is to provide reliable, affordable, and high-quality auto repair services to our community. We strive to ensure our customers feel confident and safe on the road. Our Services We offer a full range of auto repair services, including engine diagnostics, brake repair, tire rotation, and more. Our experienced team uses the latest tools and technology to provide top-notch service. Our Warranty We stand behind our workmanship with a 24-month/24,000-mile warranty on all parts and labour. We want our customers to have peace of mind knowing they can rely on our services.

Diagnostic Check£60

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5 (7 reviews)

5.0/5.0
Verified
Excellent
Would recommend
Review left: 01/09/26
5.0/5.0
Verified
m.o.t
Would recommend
Review left: 31/08/26
5.0/5.0
Verified
Great service
Would recommend
Review left: 29/08/26
SW Motors Plymouth Logo
SW Motors Plymouth

Physical Garage

Grace Mill Business Park,, Cattedown, Plymouth, PL4 0SN

Gold Tier Garage

About Us

SW Motors is a highly rated independent garage in Plymouth, known for honest advice, quality repairs, and fair pricing. Led by a skilled team with over 10 years’ experience, we offer reliable servicing and repairs for all makes and models. Our Services Include: MOT testing Full & interim servicing Diagnostics (Snap-On equipment) Clutch & cambelt replacements Brake & suspension repairs Exhaust & battery services Wheel alignment & gearbox repairs Why Choose SW Motors? Competitive pricing Fast turnaround Clear communication

Diagnostic Check£36

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4.93 (37 reviews)

Reviews Summary

AI Generated

Customers consistently praise this garage for its friendly, trustworthy staff and efficient service, with many highlighting excellent value for money and the willingness to accommodate last-minute bookings. Communication is generally well regarded, though one reviewer noted that proactive updates during a lengthy repair could make the experience less stressful, suggesting the garage may benefit from more regular progress calls on longer jobs. A single reviewer also felt that parts pricing was on the high side and that the oil may not have been changed as expected, points worth bearing in mind, though these were isolated observations against an otherwise very positive picture.

5.0/5.0
Verified
Great service
Would recommend
Review left: 27/08/26
5.0/5.0
Verified
Great service
Would recommend
Review left: 19/08/26
5.0/5.0
Verified
Perfect service
Would recommend
Review left: 13/08/26
RUSSELL HAM LTD Logo
RUSSELL HAM LTD

Physical Garage

BRITANNIA GARAGE, 4 WOLSELEY ROAD, MILEHOUSE, PLYMOUTH, PL2 3BH

About Us

Russell Ham Ltd is a trusted, family-run business based in Plymouth, Devon, established in 1984. Originally a small independent garage, it has grown over four decades into a reputable used car dealership and full-service garage. With over 50 quality used cars in stock, the company offers competitive prices, 2 years of free MOT and servicing with every vehicle, and a strong focus on customer satisfaction. Known for honest advice, skilled workmanship, and excellent aftercare, Russell Ham Ltd aims to build long-term relationships with customers-many of whom return or refer others. The business caters to all budgets and lifestyles and frequently

Diagnostic Check£80

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4.89 (28 reviews)

Reviews Summary

AI Generated

Customers consistently praise the garage's friendly, reliable service and honest approach, with several highlighting how staff kept them well-informed throughout repairs and offered helpful advice that saved unnecessary costs. The team is noted for accommodating urgent requests and completing work promptly, including free MOT retests after repairs. One review mentioned significant work being required after an MOT failure, though the customer remained very satisfied with the quality and communication throughout.

4.3/5.0
Verified
Prompt and efficient
Would recommend
Review left: 15/08/26
5.0/5.0
Verified
Good service
Would recommend
Review left: 12/01/26

Reply from RUSSELL HAM LTD

Thanks for taking the time to submit a review and thanks for giving us such positive feedback.

5.0/5.0
Verified
Great service
Would recommend
Review left: 01/11/25

Reply from RUSSELL HAM LTD

Hi Ann, thanks for your very positive feedback. Much appreciated and glad that your happy with our service.

PORSHAM CLOSE BELLIVER MOT CENTRE LTD Logo

Unit 1 Porsham Close, Belliver, Plymouth, PL6 7DB

About Us

Small friendly garage with the emphasis on ensuring friendly service in an efficient manner. We are a garage at Roborough on the outskirts of Plymouth serving the North of the city. Situated within the Belliver Industrial Estate. Apologies unable to offer MOT on Mondays

Diagnostic Check£60

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4.87 (41 reviews)

Reviews Summary

AI Generated

Customers consistently praise this garage for its friendly, honest and efficient service, with several reviewers highlighting fair pricing that matches quotes and a lack of unnecessary add-ons. MOTs and repairs are described as quick and reliably completed, with staff frequently noted as helpful and accommodating. No notable weaknesses were mentioned in these reviews, suggesting a strong and consistent customer experience.

5.0/5.0
Verified
Excellent professional service
Would recommend
Review left: 28/08/26
5.0/5.0
Verified
Great service
Would recommend
Review left: 01/06/26
5.0/5.0
Verified
Great service
Would recommend
Review left: 16/05/26
MB Motor Services Ltd Logo
MB Motor Services Ltd

Physical Garage

35 Emma Place, Stonehouse, Plymouth, PL1 3QT

About Us

With more than two decades of expertise, we've built a strong reputation as a leading independent Mercedes-Benz specialist. We pride ourselves on offering meticulous, dealership-quality service and repairs for all Mercedes models, from classic saloons to the latest AMG performance cars. Our team of skilled technicians uses the latest diagnostic equipment and only genuine Mercedes-Benz parts, ensuring your vehicle receives the highest standard of care without the dealership price tag. While Mercedes is our passion, our expertise isn't limited. We extend our same high-quality service, attention to detail, and transparent pricing to all makes a

Diagnostic Check£84 - £96

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4.85 (12 reviews)

5.0/5.0
Verified
Excellent service
Would recommend
Review left: 31/07/26
5.0/5.0
Verified
We love MB Motor services
Would recommend
Review left: 24/07/26
4.8/5.0
Verified
Great Team
Would recommend
Review left: 08/07/26
Mayflower Auto Services Logo

85 Cattedown Road, Cattedown, Plymouth, PL4 0PN

About Us

Looking for a reputable garage in Plymouth? Then we are who you have been looking for, our technicians are experienced when it comes to car & Light commercial vehicle repairs, we carry out class 4, 5 and 7 MOTs, we specialize in auto electrical, petrol & diesel diagnostics. Since opening in 1988 Mayflower Auto Services has developed an enviable reputation for garage services in car and commercial vehicle repairs, for our integrity and professionalism.

Diagnostic Check£48

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4.85 (5 reviews)

5.0/5.0
Verified
Excellent Service
Would recommend
Review left: 07/05/26
5.0/5.0
Verified
Great service
Would recommend
Review left: 03/06/25
5.0/5.0
Verified
Friendly
Would recommend
Review left: 06/04/25

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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 Plymouth. 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.