Does this work on Mercedes and Smart cars and vans both petrol and diesel ?and

Mercedes aren't listed in the manufactures in the app so not sure. I have used it on vauxhall Diesels and ford vans without any issues.

Does this work with a 2016 Mazda CX5? Are all the features available to use?

Hi, This is the specific applicable model of Mazda CX5. Model: CX-5 1 Engin: 2.2/2.0/2.2 SkyActiv-D/2.5 Applicable to Year: 2016 or later. Model: CX-5 2, Engine: 2.5 Applies to Year: 2017 or later. In applicable models, all functions are available. This is a car diagnostic instrument with full system diagnostic function, with complete OBD2 function.

Does this obd2 scanner need to pay extra money in order to unlock the vehicle brands of the full system scan?

You don't need to pay extra money in order to see more.

Does this read and clear brake fault codes on a bmw x5?

Hello, Can read and clear brake fault codes on BMW x5, It depends on whether it is suitable for the Model and Year of your car. Here is the website to find out which model is suitable for your car: https://www.outilsobdfacile.com/vehicle-list-compatible-obd2/BMW

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OBD2 Bluetooth Scanner Code Reader Reset for iOS Android, Auto Car Diagnostic Scan Tool OBDII Adapter and App Check Clear Engine Light for VW/Audi/BMW/Ford/SEAT/Skoda/Nissan/Jaguar/Toyota/Lexus/Mini

OBD2 Bluetooth Scanner Code Reader Reset for iOS Android, Auto Car Diagnostic Scan Tool OBDII Adapter and App Check Clear Engine Light for VW/Audi/BMW/Ford/SEAT/Skoda/Nissan/Jaguar/Toyota/Lexus/Mini

Product ID: 541495272

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Details

Brand
KONNWEI
Operating system
Android 11.0
UPC
764046096518
Manufacturer
KONNWEI

📱iOS & Android

🔧8+ Functions

🚗31+ Brands

Description

🚀 Drive Smart, Diagnose Faster!

WIDE COMPATIBILITY - Works seamlessly with 31+ car brands post-1996.
REAL TIME MONITORING - Keep your vehicle's health in check with live data streaming.
LIFETIME FREE UPDATES - Stay ahead with continuous software upgrades.
USER FRIENDLY INTERFACE - Intuitive app design for both pros and DIY enthusiasts.
COMPREHENSIVE DIAGNOSTICS - Unlock 8+ diagnostic functions to save time and money.

The OBD2 Bluetooth Scanner is a versatile diagnostic tool compatible with iOS and Android, offering over 8 functions including fault code reading, real-time data monitoring, and extensive vehicle compatibility across 31+ brands. With lifetime free updates and an intuitive app interface, it empowers users to efficiently manage vehicle diagnostics and maintenance.

Specifications

Manufacturer	KONNWEI
Brand	KONNWEI
Model	KDIAG
Product Dimensions	12.2 x 8.5 x 4.2 cm; 110 g
Manufacturer reference	KDIAG
Manufacturer part number	KDIAG
Item Weight	110 g

Reviews

P**S

Not currently suitable for Jaguar cars.

Unfortunately this item currently doesn’t fully support Jaguar despite stating by the manufacturer that it does. Because of this I returned the item.Return and refund was instant without any issues. Hence the 5 stars as the seller would not know about the issue.

12.08.2025

M**E

Great bit of kit with no hidden charges

over the moon with this bit of kit no hidden charges free software and easy to use just pick country-make-model and off you go. Not tried any serious use but for basic DIY fault codes and live readings this is great and cheap to boot very happy with it

11.01.2025

R**R

Obd2

Good tool for beginners,used for resetting service light and minor repairs

14.03.2025

J**V

Reads codes but won't reset them

Perfect for reading fault codes but try as I might, it refused to clear the code on my VW Golf Mk7 diesel after I'd replaced a worn glow-plug. Had to ask a local mechanic with a proper bi-directional scan tool to clear the code.

30.11.2023

M**D

Very professional tool

Really cool. Does it all for very little money. Highly recommend for personal and garages use.

14.12.2024

A**N

Well made, but does very little of the promised monitoring

It looks nice, comes in a nice case, has a nice looking app.BUT....it is virtually useless, actually displaying hardly any of the promised (and available) data.It does not even display charging voltage, so the "battery" oriented button in the app is a waste of space.It fails to display accurate lambda readings, or throttle openings (96% when idling?), or O2 sensor performance.Did not capture any of the stored fault-codes that were identified by my BMW dealer.My recommendation is buy a cheap generic OBD reader and use the free Torque app which does far more, monitoring everything you need.Save yourself the £50 odd difference.

13.03.2024

S**D

Reads and clears codes

Reads and clears codes but haven't managed to get it to carry out any of the additional features successfully. Does not support many models but will read and clear codes.

1.07.2024

K**2

Does the job

It did exactly what I wanted it to do and that was to clear the airbag light. Already had a cheap scanner but wasn’t up to the job so bought this. Great app as well. Definitely with the money

8.02.2025

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TrustScore 4.5 | 7,300+ reviews