Code Errors - big deal?

[espresso]

Hi all

Recently my wife lost one of our keys to the Passat (r36) so we got a replacement from a VW main dealer.

They ran some kind of diagnostic during the processes of rekeying the car, and it showed "exceptions" for 80% of the line items, ranging from some of the stability controls to the towing lights.

How concerned about this should I be?

- there are no real issues with the car day to day, and no dash warning lights
- the car recently had a flat battery, and needed assistance from the RACV but was otherwise ok
- I normally get my servicing done at another non-VW dealer, but they claim to have all the latest computer stuff, and didn't mention anything at the last service 3 months ago

Thanks

E

[Umai Naa!!]

Flat battery will cause various systems to log codes.

[vw_alex]

I had the same issue, low volts causes all sorts of errors on seemingly unrelated systems.

[espresso]

Thanks guys - very helpful. Everything has been working fine since the incident