Header Background Image

Diagnostic Check in Plymouth

Excellent

Let’s go!
Don't know your vehicle registration?
Diagnostic Check

Instantly compare diagnostic deals from garages near you & book online

Like for like comparison

Like for like comparison

Instant Prices

Instant Prices

No Upfront Payment

No Upfront Payment

Book around the clock

Book around the clock

Transparent reviews & ratings

Transparent reviews & ratings

Plymouth Diagnostic Checks: Prices, Reviews & Local Insights

£71.87

Average price for a Diagnostic Checks in Plymouth

4.8

average rating based on customer feedback.

2,124

customer reviews for garages in Plymouth

How to book online

ENTER

ENTER

your vehicle reg & post code.

COMPARE

COMPARE

instant prices for your MOT, service or repairs

BOOK

BOOK

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 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
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£40

Book Now

4.9 (502 reviews)

Reviews Summary

AI Generated

Customers repeatedly praise Marshall Motors for friendly, helpful staff, competitive prices and reliable, speedy MOTs and servicing. Reviewers often highlight clear communication, an easy online booking system and long‑term trust from regular clients who happily recommend the garage. A few minor issues crop up—occasional booking errors, service books not always being stamped, mechanics readjusting seats and limited detail about small faults (eg oil leaks)—but these comments are rare compared with the overwhelmingly favourable feedback.

A Gregory Vehicle Service And Repair Logo

A Gregory Vehicle Service And Repair

Physical Garage

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

Book Now

4.81 (609 reviews)

Reviews Summary

AI Generated

Customers consistently praise this garage for its friendly, professional staff and excellent communication, with many highlighting prompt service, competitive pricing, and transparent quotes before any work is carried out. The team earns particular trust for being honest about necessary repairs without pressuring customers, and several reviewers appreciate extras like same-day turnarounds, clean vehicles upon collection, and accommodating scheduling. A small number of reviewers raised concerns about recommended repairs that may not have been immediately necessary or incomplete inspections during servicing, suggesting the garage could benefit from more detailed explanations of advisory work timing.

HiQ Tyres & Autocare Plymouth Logo

HiQ Tyres & Autocare Plymouth

Physical Garage

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

Book Now

4.8 (553 reviews)

Reviews Summary

AI Generated

Customers consistently praise the garage for its friendly, professional staff and efficient service, with many highlighting the ease of booking, timely communication, and the clean workshop environment. Several reviewers appreciate the team's flexibility in accommodating last-minute MOT appointments and their transparent approach to explaining necessary work. One customer mentioned experiencing a lengthy wait for a pre-booked MOT and poor communication about its completion, though this appears to be an isolated incident among otherwise overwhelmingly positive feedback.

Whites Autocentre Logo

Whites Autocentre

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£60

Book Now

4.58 (161 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.

OBD Tech Plymouth Logo

OBD Tech Plymouth

Physical Garage

26 Stonehouse St, Plymouth, PL1 3PE

Silver Tier Garage

About Us

We are glad about your interest in OBD Tech Plymouth, one of the leading automobile service providers in and around Plymouth! We are dedicated towards delivering you the most accurate automobile services and products at the most competitive prices in the market. Our garage in Plymouth has a team of experts with considerable experience in the automobile sector and ensures superior services within the shortest time frame. Further, we have all the latest machinery and equipment that help us reach the highest level of accuracy, irrespective of the service you opt for. Our offerings are as follows: Car Tyres Plymouth Irrespective of the make an

Diagnostic Check£60

Book Now

4.87 (60 reviews)

Reviews Summary

AI Generated

Customers consistently praise this garage for its honest, trustworthy approach and competitive pricing, with many noting they felt confident no unnecessary work was added. The friendly, professional staff receive particular commendation for excellent communication throughout services, quick turnaround times, and accommodating last-minute bookings. One reviewer mentioned that a detailed breakdown of costs on receipts could be clearer, though this was raised as a minor point alongside otherwise highly positive feedback.

M&S and Sons Motors - Mobile Mechanic Logo

M&S and Sons Motors - Mobile Mechanic

Mobile Mechanic

20 Butts Park, Newton Ferrers, Plymouth, PL8 1HY

About Us

M&S and Sons Motors Ltd: Expert Mobile Mechanics & 24/7 Recovery. Based in Plymouth, M&S and Sons Motors Ltd is a family-run business built on over 40 years of mechanical expertise. We provide a comprehensive service designed to keep you moving, no matter the time of day or night. Whether you need a routine service on your driveway or an emergency recovery at 3 AM, our father-and-son team is ready to help. We bring the garage to you for repairs and diagnostics, and if we can’t fix it on-site, our 24/7 recovery service ensures you and your vehicle are transported safely. Professionalism, decades of experience, and round-the-clock reliability

Diagnostic Check£60

Book Now

5 (1 reviews)

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

Book Now

4.98 (25 reviews)

SW Motors Plymouth Logo

SW Motors Plymouth

Physical Garage

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

Silver 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

Book Now

4.96 (31 reviews)

Reviews Summary

AI Generated

Customers consistently praise SW Motors for their friendly, professional approach and excellent value, with particular appreciation for clear communication throughout repairs and transparent pricing. The garage earns strong recommendations for quality workmanship across a range of jobs, from MOTs and diagnostics to complex repairs like clutch replacements and cambelt changes, with many customers stating they've found their permanent garage. One reviewer mentioned that more regular progress updates during lengthy repairs could be beneficial, though the final work quality and fair pricing were still rated highly.

Vertu Honda Plymouth Logo

Vertu Honda Plymouth

Physical Garage

447 Wolseley Road, Weston Mill, Plymouth, PL5 1BL

About Us

Vertu Honda service departments offer an honest and fair car service in partnership with Motor Industry Code of Practice. Our car service receptionists have expert knowledge and can offer advice on car servicing and repairs. We have heavily invested in the latest diagnostic technology to ensure we solve any problem with your vehicle correctly and in a timely manner. Combine this with the investment we have made in training to ensure we have the expertise to repair any problem and the best technicians carrying out any required work on your vehicle we can confidently say that we can reduce your anticipated labour costs dramatically.

Diagnostic Check£90

Book Now

4.94 (9 reviews)

Reviews Summary

AI Generated

Customers consistently praise the garage for friendly, professional staff, clear and timely communication, and a hassle-free experience. Regularly mentioned strengths are the emailed video car‑health checks, complimentary wash and vacuum, flexible pickup/courtesy car options and little touches like refreshments while you wait. A few customers note it isn’t the cheapest and extra repairs can increase the bill, but most feel the quality and convenience justify the cost.

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

Book Now

4.92 (27 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.

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.

PROUDLY WORKING WITH

PetrolPrices
Comma
Just Park
Vehicle Smart
MOT Check
Motasoft
dropless
carsa
Dacia
Quidco
Alliance Automotive Group
Vertu
ETB Autocentres