Seat ALHAMBRA Owner's Manual page 278

276 Checking and refilling levels
Refilling AdBlue
To refill AdBlue, the vehicle must be on flat ground and not, for example,
parked on a kerb or slope. If the vehicle is not on flat ground then the filling
indicator cannot measure the filling quantity.
Fig. 166 At the rear left
of the luggage compart-
ment: AdBlue tank, be-
hind a cover panel

Fig. 167 AdBlue tank with filler neck cap and refilling
bottle