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Obd Ii Engine System Diagnostic Tools Comparison - June 2025

7 Best Obd Ii Engine System Diagnostic Tools In the UK

Last Updated - 09/06/2025

Advertising Disclosure

Our Score

To Amazon

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Model

TOPDON OBD2 Code Reader Scanner ArtiDiag600S, 9 Reset Service for Oil/BMS/ABS/SAS/EPB/DPF/TPMS/Throttle/Injector Coding, ABS/SRS/Engine/Transmission Car diagnostic tool, Free Lifetime Upgrade

Model

TOPDON OBD2 Code reader Scanner ArtiDiag500, Engine ABS SRS Transmission Car Diagnostic Tool for all cars, 6 Reset Services for Oil/SAS/TPMS/ETS/BMS/Brake, Wi-Fi Free Update

Model

ANCEL AD310 OBD2 Code Reader OBD2 Scanner Universal Car Engine Fault Code Reader, Car Diagnostic Tool for All OBD Vehicles since 1996 & Newer (Black)

Model

MOTOPOWER MP69033 OBD2 Scanner Universal Car Engine Fault Code Reader, CAN Diagnostic Scan Tool for All OBD II Protocol Cars

Model

TOPDON Topscan OBD2 Scanner Bluetooth, Wireless OBD2 All System Diagnostic Tool, 8 Reset, Active Test, Check Engine Car Code Reader, Vehicle Performance Test for iOS & Android, All Software 1 YearFree

Model

MOTOPOWER MP69038 Car OBD2 Scanner Code Reader Engine Fault Code Reader Scanner CAN Diagnostic Scan Tool - Elite Edition

Model

OBD2 Code Reader Diagnostic Scanner: OBD Car Scanner Tool Check Engine Light Fault Code Reader - Auto Car Diagnostic Tool for BMW Ford VW Audi All OBDII Vehicles with Live Data Battery Test

Brand

TOPDON

Brand

TOPDON

Brand

ANCEL

Brand

MOTOPOWER

Brand

TOPDON

Brand

MOTOPOWER

Brand

VPOW

Reviews

255 reviews

Reviews

501 reviews

Reviews

92,967 reviews

Reviews

71,958 reviews

Reviews

39 reviews

Reviews

9,552 reviews

Reviews

66 reviews

Features

Worth the money

9.6

Worth the money

9.3

Worth the money

9.1

Worth the money

8.6

Worth the money

8.6

Worth the money

8.4

Worth the money

8.1

Simple to use

9.8

Simple to use

9.8

Simple to use

8.6

Simple to use

8.4

Simple to use

8.1

Simple to use

7.9

Simple to use

7.7

Tech Specs

Manufacturer part number

ArtiDiag600S UK

Manufacturer part number

ArtiDiag500

Manufacturer part number

AD310

Manufacturer part number

MP69033

Manufacturer part number

Topscan

Manufacturer part number

MP69033

Manufacturer part number

K88

Model

ArtiDiag600S OBD2 Scanner

Model

ArtiDiag500 UK

Model

AD310

Model

MP69033

Model

TOPSCAN

Model

MOTOPOWER

Model

K88

Item Weight

1.01 kg

Item Weight

1.27 kg

Item Weight

272 g

Item Weight

289 g

Item Weight

118 g

Item Weight

222 g

Item Weight

310 g

Package Dimensions

29.5 x 23.8 x 8.4 cm 1.01 Kilograms

Package Dimensions

30.6 x 26.5 x 8.6 cm 1.27 Kilograms

Package Dimensions

21.11 x 16.1 x 3.51 cm 272.16 Grams

Package Dimensions

15.09 x 11.71 x 4.5 cm 118 Grams

Package Dimensions

20.4 x 13.2 x 4.4 cm 310 Grams

Special Features

4 System diagnostic: Engine/ABS/SRS/Transmission 8 Hot Services: Oil reset/BMS reset/ABS Bleeding/DPF reset/Brake reset/TPMS reset/Throttle Adaptation/SAS reset Full OBD function Auto Vin update with No Costs

Special Features

4 System diagnostic: Engine/ABS/SRS/Transmission Full obd2 function AutoVin Online Feedback Data Record Replay DTC LookUp Wi Fi Free Update

Special Features

Check engine

Special Features

DTC lookup library, Data Flow, Real Time Graphic View, View Freeze Frame

Special Features

One click I/M readiness, Color TFT screen, Mini size design for easy operation

Special Features

Batteries

1 Lithium Ion batteries required. included

Batteries

1 Lithium Ion batteries required. included

Batteries

1 Lithium Ion batteries required.

Batteries

1 Lithium Ion batteries required. included

Batteries

Available On

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Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you

9.8
1

TOPDON
20% Off

TOPDON OBD2 Code Reader Scanner ArtiDiag600S, 9 Reset Service for Oil/BMS/ABS/SAS/EPB/DPF/TPMS/Throttle/Injector Coding, ABS/SRS/Engine/Transmission Car diagnostic tool, Free Lifetime Upgrade

9.8 Simple to use

9.6 worth the money

Why we love it

The TOPDON obd2 scanner AD600S is an upgrade from the TOPDON AD600 and AD500, adding 3 more commonly used reset functions.

This diagnostic scan tool can access AT/ENG/ABS/SRS fault codes to find the right troubleshooting procedure.

The touch
Main highlights

WIDE COMPATIBILITY: this OBD2 code reader works on most US-based cars since 1996, EU-based cars after 2000, and Asian-based cars after 2008, it comes with a 1-year warranty for product quality issues. The product supports 10 languages for user convenience.BDII-equipped vehicles built after 2002, and it works on more than 90 Vehicle Brands. It supports Diesel (12v only), gasoline, 12V passenger car, pickup, light-duty truck, SUV, Minivans, compatible with OBD2/EOBD/JOBD&CAN protocols. *Menus vary by make, model, and year of gasoline or diesel engine vehicle. Email us support@topdon.com your VIN data.
NO EXTRA SOFTWARE FEE: the touch-sensitive screen and clear icons make operation easy. The 5" color screen with high resolution ensures clear result interpretation even in dark garages. Lifetime updates over Wi-Fi keep the software current. Android 6.0 ensures lightning-fast bootup and processing.
AUTO VIN DECODER - This OBD2 scanner features automatic VIN technology for easy car identification. It displays live data in text or waveform graph formats, allowing for easy analysis and sharing of inspection reports. The built-in "Feedback" module provides repair suggestions, and the onboard DTC library saves time in interpreting error codes. AutoVIN may not work on all cars.
8 RESET SERVICE CAR DIAGNOSTIC TOOL: TOPDON AD600S is an upgraded version of TOPDON AD600 and AD500. It offers new reset functions like BMS Reset, ABS Bleeding, and DPF Reset, in addition to the existing reset functions like Oil reset, Brake reset, TPMS reset, Throttle adaptation, SAS reset.
4 SYSTEMS DIAGNOSTIC: This OBD2 scanner is designed for home mechanics, DIYers, and professionals. It can access fault codes for AT/ENG/ABS/SRS systems and offers 10 OBD2 test modes for emission-related issues. It helps with routine maintenance to avoid costly repairs or accidents.
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9.7
2

TOPDON
20% Off

TOPDON OBD2 Code reader Scanner ArtiDiag500, Engine ABS SRS Transmission Car Diagnostic Tool for all cars, 6 Reset Services for Oil/SAS/TPMS/ETS/BMS/Brake, Wi-Fi Free Update

9.8 Simple to use

9.3 worth the money

Why we love it

The ArtiDiag500 is a professional level car diagnostic tool that is affordable.

It can access 4 vital car systems Engine/ABS/SRS/Transmission and has a library of DTCs.

It has a smooth Android 7.0 interface, 16GB ROM, and a 5 touchscreen.
Main highlights

[Wide Coverage] With its multilingual menu and coverage of 67 car brands and 10,000+ models spanning North America, Europe, and Asia (including Malaysia, India, and Iran), this car scanner is compatible with the majority of 1996 and newer OBDII compliant automobiles (EN, FR, ES, DE, IT, RU, PT, JP, KR). Before buying, make sure the OBD2 scanner is compatible with your vehicle. The package contains only a charging cable and not a power adapter.
[User-Oriented TOPDON OBD2 Scanner] With this scan tool's touchscreen and rubberized buttons, you may easily navigate through menus or process while following a logical path. With 32GB on-board memory, the scanner enables for the recording of several diagnostic reports, which can be shared via email and printed for review. Along with this, you can upgrade your software for free for lifetime with one-touch over Wi-Fi for that help update the features and expanding car coverage.
[OBD2 Scanner] The TOPDON OBD2 scanner performs all ENG/AT/SRS/ABS diagnostics with 4-in-1 graphic live data. It covers all OBD2 tests for 67 manufacturers and 10000+ model. It also features 5-second one-touch AutoVIN, a free one-touch lifetime upgrade through WiFi, library DTC, 12 languages, printable auto-generated report with email sharing, smooth Android 11.0, 32GB ROM, vivid 5-inch touchscreen, and up to 10 hours of battery life.
[Multiple Functions] The Smart AutoVIN of this TOPDON OBD2 scanner keeps track of your manual selections for vehicle make, model, and year and directs you to the suitable diagnostics. Max 4 Live Data streams integrated for much easier data processing. Diagnostic feedback online with this diagnostic tool to help you get tough repair operations well-completed. Real-time car battery voltage monitoring identifies probable vehicle defects.
[4 Car System Code Reader] The TOPDON OBD2 scanner accesses 4 systems: Engine/ABS/SRS/Transmission. It identifies the ECU version, pull DTCs with 4-in-1 graphic live data and DTC explanation to identify issues, erase DTCs to turn off the warning lights after repair (For cars made in 2005 and newer). In order to help you extend the lifespan of your vehicle while improving performance, this code reader also includes all obd2 test modes to solve the major concerns for all vehicles.
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9.6
3

ANCEL
20% Off

ANCEL AD310 OBD2 Code Reader OBD2 Scanner Universal Car Engine Fault Code Reader, Car Diagnostic Tool for All OBD Vehicles since 1996 & Newer (Black)

9.1 worth the money

8.6 Simple to use

Why we love it

You can figure out whats wrong with your car without having to go to a mechanic

It works on most cars

Its easy to use
Main highlights

【Warm Tip】ABS/Airbag/SRS Codes NOT Supported, AD310 just supports the engine system diagnosis.
【Please Note】Dear customer, if you are not pleased with your AD310 and choose to return it, please kindly mark it unsellable to avoid an used one is resold again to other customers. Appreciate very much!
【KINDLY NOTE】Any car brand logo and brand name of car brand appeared in the detail page is to descripe the item is compatible with vehicles. We are not selling products manufactured/sold by any car brand.
Sturdy and Compact: Equipped with a 2.5 foot cable made of very thick, flexible insulation. It is important to have a sturdy scanner as it can easily fall to the ground when working in a car. The AD310 OBD2 scanner is a well-constructed device with a sleek design. It weighs 12 ounces and measures 8.9 x 6.9 x 1.4 inches. Thanks to its compact design and light weight, transporting the device is not a problem. The buttons are clearly labelled and the screen is large and displays results clearly.
OBDII Protocols and Car Compatibility: Many cheap scan tools do not really support all OBD2 protocols. This is not the case with the AD310 obd reader as it can support all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. This device also has extensive vehicle compatibility with 1996 US-based, 2000 EU-based and Asian cars, light trucks, SUVs, as well as newer OBD2 and CAN vehicles both domestic and foreign. Check compatibility with your vehicle model before purchasing.
Home Necessity and Worthy to Own: This is an excellent code reader to travel or home with as it weighs less and it is compact in design. You can easily slide it in your backpack as you head to the garage, or put it on the dashboard, this will be a great fit for you. The AD310 is not only portable, but also accurate and fast in performance. Moreover, it covers various car brands and is suitable for people who just need a code reader to check their car.
CEL Doctor: The ANCEL AD310 is one of the best-selling OBD2 code reader on the market and is recommended by Scotty Kilmer, a YouTuber and auto mechanic. It can easily determine the cause of the check engine light coming on, quickly read and clear diagnostic trouble codes, read live data & hard memory data, view freeze frame, I/M monitor readiness and collect vehicle information. Instead of taking car to mechanic shop, you can use it to check the trouble code and show code definition by yourself.
Accurate Fast and Easy to Use: The AD310 obd scanner can help you or your mechanic understand if your car is in good condition, provides exceptionally accurate and fast results, reads and clears engine trouble codes in seconds. If you want to find out the cause of the check engine light, this device will let you know immediately and fix the problem right away without any car knowledge. No need for batteries or a charger, get power directly from the OBDII Data Link Connector in your vehicle.
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Our ranking system

The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.
We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.

Features

Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.

Consumer Reviews

We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.

Popularity

Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.

Value for money

TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.

When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.

7 Best Obd Ii Engine System Diagnostic Tools In the UK

Our Score

To Amazon

Model

Brand

Reviews

Features

Worth the money

Simple to use

Tech Specs

Manufacturer part number

Model

Item Weight

Package Dimensions

Special Features

Batteries

Available On

Our Top 3 Picks

TOPDON OBD2 Code Reader Scanner ArtiDiag600S, 9 Reset Service for Oil/BMS/ABS/SAS/EPB/DPF/TPMS/Throttle/Injector Coding, ABS/SRS/Engine/Transmission Car diagnostic tool, Free Lifetime Upgrade

Why we love it

TOPDON OBD2 Code reader Scanner ArtiDiag500, Engine ABS SRS Transmission Car Diagnostic Tool for all cars, 6 Reset Services for Oil/SAS/TPMS/ETS/BMS/Brake, Wi-Fi Free Update

Why we love it

ANCEL AD310 OBD2 Code Reader OBD2 Scanner Universal Car Engine Fault Code Reader, Car Diagnostic Tool for All OBD Vehicles since 1996 & Newer (Black)

Why we love it

Our ranking system

Features

Consumer Reviews

Popularity

Value for money

Value for money

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7 Best Obd Ii Engine System Diagnostic Tools In the UK

obd ii engine system diagnostic tools comparison

Our Score

To Amazon

Model

Brand

Reviews

Features

Worth the money

Simple to use

Tech Specs

Manufacturer part number

Model

Item Weight

Package Dimensions

Special Features

Batteries

Available On

Our Top 3 Picks

TOPDON OBD2 Code Reader Scanner ArtiDiag600S, 9 Reset Service for Oil/BMS/ABS/SAS/EPB/DPF/TPMS/Throttle/Injector Coding, ABS/SRS/Engine/Transmission Car diagnostic tool, Free Lifetime Upgrade

Why we love it

TOPDON OBD2 Code reader Scanner ArtiDiag500, Engine ABS SRS Transmission Car Diagnostic Tool for all cars, 6 Reset Services for Oil/SAS/TPMS/ETS/BMS/Brake, Wi-Fi Free Update

Why we love it

ANCEL AD310 OBD2 Code Reader OBD2 Scanner Universal Car Engine Fault Code Reader, Car Diagnostic Tool for All OBD Vehicles since 1996 & Newer (Black)

Why we love it

Our ranking system

Features

Consumer Reviews

Popularity

Value for money

Value for money

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Fits Yamaha 3 4 6 Pin OBD2 Diagnostic Cable, Motorcycle OBD II Engine System Diagnostic Tool, OBD Fault Code Reader Adaptor, Motorbike Parts Only Compatible with Yamaha Motorcycle

Vgate iCar Pro Bluetooth 4.0 (BLE) OBD2 Fault Code Reader OBDII Code Scanner Car Check Engine Light for iOS/Android

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