Peak Blue DEF

I have a new 2014 passat tdi , I know dealerships here use ad blue . Is there any problem with using the Peak blue DEF instead ?

No, DEF is DEF.

There is a special connector on the DEF tank in your car. Get a bottle of DEF from the dealer and use this special bottle to refill the tank as needed. (refill the bottle from whatever source you prefer)

The dealer will refill the tank during your care-free maintenance period, so there is no hurry to get that bottle.

Bill

Thanks