Applies to: vehicles with selective catalytic reduction
On vehicles with selective catalytic reduction, a urea solution (AdBlue/DEF) is injected into the exhaust system upstream of a NOx catalytic converter in order to reduce nitrogen oxide emissions. The urea solution is known under the name of AdBlue or DEF (Diesel Exhaust Fluid). The term AdBlue is used below.
The AdBlue is held in a separate tank on the vehicle. AdBlue consumption is approximately 1.0 - 2.5% of diesel fuel consumption.
As soon as a message appears in the instrument cluster display reminding you to refill AdBlue, you must refill the AdBlue tank or have this done by a qualified workshop link►.
The remaining (estimated) range for the current AdBlue level can be displayed on the on-board computer:
Note
- The instrument cluster display will tell you how far you can drive before the tank runs dry link►. If the AdBlue tank runs dry, the engine cannot be started again after you switch off the ignition.
- The use of AdBlue for the operation of this vehicle is required by law.