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  • C-Class
  • Cabriolet
  • 03/2019
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Topping up AdBlue®
NOTE Engine damage due to AdBlue® being in the fuel
AdBlue® must not be used to fill the fuel tank.
Only use AdBlue® to fill the AdBlue® tank.
Do not overfill the AdBlue® tank.
NOTE Contamination of the vehicle interior due to AdBlue® leakage
After topping up, carefully close the AdBlue® refill container.
Avoid carrying AdBlue® refill containers permanently in the vehicle.
Requirements:

  • The vehicle is unlocked.

The following messages appear in order in the multifunction display when the AdBlue® tank requires refilling:

  • Refill AdBlue See Owner's Manual. The AdBlue® tank is down to the reserve level.

  • Top up AdBlue Emergency op. in XXX miles   See Owner's Manual. You can only drive the vehicle over the distance shown. The AdBlue® tank is down to the reserve level.

  • Top up AdBlue Perf. reduced: XXX km/h  No start in XXX km . You can only drive the vehicle over the distance shown. Refill AdBlue® as soon as possible.

  • Refill AdBlue No start in XXX km . You can only drive the vehicle over the distance shown. Refill AdBlue® as soon as possible.

  • Refill AdBlue Start not possible. The vehicle can no longer be started.

You can see the AdBlue® range and level in the multifunction display More.

The AdBlue® range shown depends strongly on the driving style and operating conditions. The actual range can therefore deviate from the calculated range.

Opening the AdBlue® filler cap
Press on the back area of fuel filler flap .
Turn AdBlue® filler cap anti-clockwise and remove it.

You can also store the AdBlue® filler cap in the fuel filler cap holder in the fuel filler flap hinge arm.

Preparing the AdBlue® refill canister
Screw on the fastener of AdBlue® refill canister .
Screw disposable hose onto the opening of AdBlue® refill canister until hand-tight.
Topping up AdBlue®
Screw disposable hose onto the filler neck of the vehicle until hand-tight.
Lift up and tip AdBlue® refill canister .

The filling process stops when the AdBlue® tank is completely full.

AdBlue® refill canister can be removed when it has been only partially emptied.

Unscrew and close disposable hose and AdBlue® refill canister in reverse order.
Replace the AdBlue® fuel filler cap and turn it clockwise.
Close the fuel filler flap.
Switch on the ignition for at least 60 seconds.

If the vehicle could not be started as the AdBlue® tank was empty, it can take up to 60 seconds for the refill to be detected.

Start the vehicle.

Avoid storing AdBlue® refill containers permanently in the vehicle.

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