Manufacturer Code Charts: 111700

Excessive nitrogen oxide emission due to low quality AdBlue


Possible cause:

- Service product quality ( AdBlue )
Affected functions:

- Power generation

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Test 1: Service product quality ( AdBlue )

1. Service product quality ( AdBlue )
Check AdBlue quality in AdBlue tank.

- Apply a few drops of AdBlue to the surface of the prism of the handheld refractometer (the entire surface of the prism should be covered, see picture).
- Point the handheld refractometer towards the light and look through it.
- The AdBlue concentration must be between 31,8 % and 33,2 %.
- If the AdBlue concentration is outside of these values, the entire AdBlue quantity must be replaced.
Call up WIS document 'Check AdBlue quality in AdBlue tank.' with button F6.

1. No further information available.