Quote:
Originally Posted by FunfDreisig
Thanks for the detailed info. 
There are two of these urea 'filler nipples' in the engine compartment. The other one is on the drivers side (US models). How did you know which one too use? Do they both fill the both tanks? Or does one fill the 1.6 gal 'active' tank and the other fill the 4.5 gal 'reserve' tank?
Funf Dreisig |
I used the more easily reached one on the passenger side. I am guessing (a total guess) that this is the reserve tank. Thinking the Active tank is the harder to reach one and only needs filling if you drive a substantial distance after the "Add Urea" lamp comes on. I am guessing (another guess!) that it is set up like this to lessen the effects of freezing since the stuff does freeze and needs room to expand so as not to damage the tanks and if it does, get quickly melted by engine heat. If anyone knows for sure please post!