Scirocco Central

Hi guys. I recently had my scirocco 2.0TDI R-Line digital Speedo changed to MPH. Luckily a guy at a local garage also does the software side of things so he did this for me so I know have a nice big digital Speedo in MPH. However he also did a diognostic check and found a couple of faults but no warning lights are coming up at all? He said do not worry as there is no warning lights?
Is this normal? Got me a bit worried is it my new Rocco!

Thank you

I have reversing sensor and headlight washer relay come up as faults. Also had other stuff show up on a scan. None of which came up with an engine management light.

Ok thanks. So pretty normal if no warning lights. Can happen?