188D00

The AdBlue quality is insufficient.


Possible cause:

- Service product quality ( AdBlue )
- The AdBlue® fill level is too low.
Affected functions:

- Power generation

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Test 1: The AdBlue tank is empty.

Test 2: Service product quality ( AdBlue )

1. The AdBlue tank is empty.
Possible cause and remedy

- Refill AdBlue.
- Select menu 'Control unit adjustments' in control unit SCR.
- After this, select menu point 'Refill AdBlue.'.
End of test

2. 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.

2. No further information available.