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Obd Ii Engine System Diagnostic Tools Comparison - December 2025

3 Best Obd Ii Engine System Diagnostic Tools In the UK

Last Updated - 15/12/2025

Advertising Disclosure

Our Score

To Amazon

View DealOn Amazon

Model

Veepeak OBDCheck BLE+ Bluetooth OBD II Scanner Car EOBD Engine Code Reader Auto Wireless Diagnostic Scan Tool for iOS & Android

Model

TOPDON Car Diagnostic Tool Phoenix Plus Advanced ECU Coding, OE-level all System Diagnostic Scanner with 41+ Reset Service, Guided Function, Bi-Directional scan tool, FCA AutoAuth, Android 10.0

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

Brand

Veepeak

Brand

TOPDON

Brand

TOPDON

Reviews

24,777 reviews

Reviews

192 reviews

Reviews

1,143 reviews

Features

Worth the money

9.3

Worth the money

9.3

Worth the money

9.3

Simple to use

9.8

Simple to use

9.9

Simple to use

9.8

Tech Specs

product dimensions

4.09 x 5 x 2.21 cm 60 g

product dimensions

19.8 x 27.7 x 4.45 cm 1.55 kg

product dimensions

23.2 x 12.6 x 3.4 cm 565 g

manufacturer part number

OBDCheck BLE+

manufacturer part number

Phoenix Plus

manufacturer part number

ArtiDiag500

item weight

60 g

item weight

1.55 kg

item weight

565 g

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

9.7
1

Veepeak
Veepeak OBDCheck BLE+ Bluetooth OBD II Scanner Car EOBD Engine Code Reader Auto Wireless Diagnostic Scan Tool for iOS & Android

9.8 Simple to use

9.3 worth the money

Why we love it

Easy to use with phone or tablet.

Supports extensive third-party apps.

Compact design with reduced power usage.
Main highlights

VEHICLE COMPATIBILITY: Compatible with most 2001+ petrol and 2004+ diesel passenger vehicles in UK & EU. For EVs, check in Car Scanner App or contact Veepeak to confirm compatibility before purchase. Not all EVs are supported.
NOTE: Advanced diagnostics (ABS, SRS, etc.) and data (like DPF) are only available for some makes/models via specific apps. MS-CAN, and advanced functions like oil light reset, DPF regeneration, or service performing are usually NOT supported. Please refer to product description, User Instructions, or contact Veepeak to check availability.
GENERIC OBD-II FUNCTIONS – Find out why the check engine light is on; read & clear trouble codes, view freeze frame data, I/M readiness, and live sensor data to help monitor vehicle health and diagnose check engine problems.
COMPATIBLE WITH POPULAR THIRD-PARTY APPS: Car Scanner (recommended), Torque (for Android), BimmerCode*, BimmerLink*, OBD JScan, Dr. Prius, VAG DPF, etc. Note: App not included; some Apps or in-App features require separate purchase.
COMPATIBLE WITH IOS & ANDROID: Supports Bluetooth LE for iOS and Android for easy connection (no pairing needed, connect in the App instead of via Bluetooth Settings). Also supports classic Bluetooth for Android. Android head units may not be supported.
*APP LIMITATIONS: When used with BimmerCode, only 2008+ E, F, I, and 2008+ R series are supported (pre-2008 models or G/U series not supported). Not suitable for pre-2008 models for BimmerLink. NOT compatible with MHD, xHP, ProTool, bootmod3, etc.
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9.4
2

TOPDON
TOPDON Car Diagnostic Tool Phoenix Plus Advanced ECU Coding, OE-level all System Diagnostic Scanner with 41+ Reset Service, Guided Function, Bi-Directional scan tool, FCA AutoAuth, Android 10.0

9.9 Simple to use

9.3 worth the money

Why we love it

Long battery life over 10 hours.

Wide compatibility with global vehicles.

User-friendly one-touch Wi-Fi updates.
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.
TOPOLOGY MAPPING DISPLAYS: The topology mapping visualizes all major car systems in a diagrammatic tree, and checks all system conditions with one-click.
THE PRODUCT: TOPDON Phoenix scan tool is a high-end diagnostic tool with ECU coding. It is based on Android 10.0 and features a 10.1" touchscreen, 64GB ROM storage, and a long battery life of over 10 hours. It offers free One-Touch Wi-Fi software updates for 2 years.
BI DIRECTIONAL CONTROL: This scan tool allows for various bi-directional tests such as turning off ACC, cycling the fuel pump, performing A/C tests, and more. It can also perform specific tests like oil pressure control, brake vacuum pump, and injector tests.
AUTOVIN + AUTOSCAN: This diagnostic scanner quickly connects to the vehicle's ECU modules in all available onboard systems and performs automatic scanning to locate faults and retrieve related DTCs. It provides comprehensive access and active testing capabilities.
41+ MAINTENANCE SERVICES: the tool can perform a wide range of maintenance services including oil reset, SAS reset, TPMS reset, DPF regeneration, IMMO coding, and more. It offers scheduled procedures and a smooth workflow to make maintenance easy in the garage or workshop.
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9.3
3

TOPDON
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

Comprehensive diagnostics for major car systems.

User-friendly interface with touchscreen and buttons.

Free lifetime software updates.
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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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.

3 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

product dimensions

manufacturer part number

item weight

Available On

Our Top 3 Picks

Veepeak OBDCheck BLE+ Bluetooth OBD II Scanner Car EOBD Engine Code Reader Auto Wireless Diagnostic Scan Tool for iOS & Android

Why we love it

TOPDON Car Diagnostic Tool Phoenix Plus Advanced ECU Coding, OE-level all System Diagnostic Scanner with 41+ Reset Service, Guided Function, Bi-Directional scan tool, FCA AutoAuth, Android 10.0

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

Our ranking system

Features

Consumer Reviews

Popularity

Value for money

Value for money

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3 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

product dimensions

manufacturer part number

item weight

Available On

Our Top 3 Picks

Veepeak OBDCheck BLE+ Bluetooth OBD II Scanner Car EOBD Engine Code Reader Auto Wireless Diagnostic Scan Tool for iOS & Android

Why we love it

TOPDON Car Diagnostic Tool Phoenix Plus Advanced ECU Coding, OE-level all System Diagnostic Scanner with 41+ Reset Service, Guided Function, Bi-Directional scan tool, FCA AutoAuth, Android 10.0

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

Our ranking system

Features

Consumer Reviews

Popularity

Value for money

Value for money

Related deals you might like for obd ii engine system diagnostic tools

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

MOTOPOWER MP69033 Pro OBD2 Scanner Code Reader Check Engine Fault Light Diagnostic Scan Tool with Battery Tester

MOTOPOWER MP69033 Pro OBD2 Scanner Code Reader Check Engine Fault Light Diagnostic Scan Tool with Battery Tester, Red Edition

VDIAGTOOL VD30 Pro OBD2 Scanner, Car Diagnostic Tool for All Cars, Fault Code Reader for All OBD II with Reset, Live Data, Check Engine Light, I/M Readiness for All OBDII Protocol Vehicles

TOPDON CarPal A, OBD2 Scanner, All System Diagnosis, Wireless Bluetooth Diagnostic Tool, Vehicle Health Check, Smog Check, Repair Guide, Engine Inspection, Vehicle Performance Test

OBD2 Scanner with Upgrade Battery Tester, Car Diagnostic Tool Check Engine Light & Emissions Readiness, Fault Code Reader for All OBD II Protocol Vehicles Since 1996

NexLink Bluetooth OBD2 Scanner Check Engine Light Code Reader with Live Data & Performance Test, Wireless Diagnostic Scan Tool Compatible with Various Third-party Apps Like BimmerCode, Car Code Reader

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