98
NOTE
If a particle filter is heavily loaded with soot, the regeneration request can be
blocked again after a short time or is not released. Drive the vehicle for
appropriately 30 minutes at a constant speed. Then perform the Particle filter
regeneration service again.
During the regeneration phase and with the engine running, it can also occur
that the display for “Regeneration active” jumps to “Regeneration not active”.
This behavior can be seen exclusively with the vehicle stationary with the
engine.
Particle Filter Test
It is advisable to carry out a series of particle filter tests as a result of constant
DPF regeneration, such as checking oil level, oil change interval for diesel
contamination, swirl flaps, backpressure sensors and particle filter soot
remains.
1. Tap
Particle filter test
from the service functions menu.
2. The tool communicates with the vehicle and reads the fault codes
memory. If there is no relevant fault code stored in DDE, the screen
displays as below. Select
Cancel
to exit this function.
3. If there are DPF-related codes stored in DDE, the screen displays as
below. Select
OK
to continue or
Cancel
to exit this function.
Figure 6-28
Sample Regeneration Status Screen
