Are you looking for a good & cheap OBD reader?

[EVR]

Then I can recommend this one, just tested on my N420.



https://www.ebay.it/itm/Elm327-Obdii-Obd2-Wifi-Sca...

- Cheap
- Super small, you can leave it always plugged
- On/off button, see above, it will not drain current
- Wifi

Then pick your app of choice on your phone and you are good to go.

[bogie]

Great looks like a handy solution if you dont already have a device

[Greathey]

I bought an original Foxwell NT520 with Aston Martin software and lifetime updates from HK for about 150 dollars delivered to Saudi Arabia. Much cheaper than in the UK or USA

I still haven't used it but I guess it's the best. I am not sure if it can reset service light though but fingers crossed when the time comes