VCDS Codes and MFD wheel settings

apologies if this is somewhere else on the forum, I have got a few problems I could really do with some assistance with,

I have a set of monte carlo alloys 17" with 235/45r17 winter tyres on, from what i can gather these will fit my car (2011 passat cc gt tech bluemotion 170 dsg auto) In the MFD display it gives an option for winter tyres and a plus or minus option for speed can anybody tell me which i need to select.

Second problem is vcds scan codes, I scanned my Passat and found these codes:

01176 - Key (008 - Implausible signal) ------ was wondering if this could be a low battery in one of the key fobs (one of the fobs does looks a bit rough)

9481200 - coolant pressure (b10ab f0 [009] - too low ----- could this be a low coolant level in the aircon(climatronic) system.

4875 - coolant pump 2 ( p261a oo [096] - open circuit ---- this stumped me.


last problem the car has been serviced from new by a main dealers VW Crewe the garage that sold me the car (Swansway Honds,Bury) assures me that the DSG has been serviced, I spoke to VW and they say that there records dont show this but that this is normal for it not to be on the records, has anybody else come across this issue of it not being on VW records or Am I being Lied to.

Are any of these problems something I should be concerned about.

All problems with the car have now been sorted, took the car back to the dealers and told them I wanted a refund, quick word of warning to anybody looking for an 11 plassat cc gt, dont buy it from Swansay in Bury.