Mercedes-Benz GLB Owner's Manual page 217

214 Driving and parking
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Opening the AdBlue filler cap
Press on the back area of fuel filler flap 1.
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Turn AdBlue filler cap 2 anti-clockwise and
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remove it.
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You can also store the AdBlue
the fuel filler cap holder in the fuel filler flap
hinge arm.
Preparing the AdBlue
Screw on the fastener of AdBlue
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ter 2.
Screw disposable hose
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of AdBlue
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filler cap in
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refill canister
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refill canis‐
1 onto the opening
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refill canister 2 until hand-tight.
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Topping up AdBlue
Screw disposable hose 1
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neck of the vehicle until hand-tight.
Lift up and tip AdBlue ® refill canister 2.
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The filling process stops when the AdBlue
tank is completely full.
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AdBlue refill canister 2 can be removed
when it has been only partially emptied.
onto the filler
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