Lol, you can get the ODB adapter for about a tenner, just a nerdy thing to have really :-)
Pays for itself, the first time you get an engine management light.
Although, if it's a Volkswagen, that's how you know it's working
Agreed! I had a warning message on me car.
Dealership wanted £90 to put it on the computer, Halfords £40
Aliexpress sold them with the dodgy software for £30
got my diags codes, googled the error's - replaced £20 fuel filter myself.
Still got errors.
Got adventurous with software & cleared out the errors.
No more problems.