8 Tips and assistance
79
Description of
problem
Possible causes / solution
Leaks in the
measurement gas
path were exposed
during the tightness
test.
Fresh air filter is not correctly closed.
> Close fresh air filter.
Rotation diluter: the rotation disc is not correctly
inserted.
1. Remove the cover of the rotation diluter.
2. Establish tightness by slightly rotating the
rotation disc.
> Check the fit of the rotation disc.
Measurement gas tube is not correctly connected to
the particulate matter probe.
> Attach measurement gas tube to the particulate
matter probe.
Measurement gas tube is not correctly connected to
the preheating section.
> Connect measurement gas tube to the
preheating section correctly.
Preheating section is not correctly connected.
> Attach preheating section correctly and lock
(clockwise).
Probe connection is not correctly connected.
> Attach connecting plug correctly and lock.
Pressure tube is not correctly connected to the
particulate matter sensor.
> Connect pressure tube to the particulate matter
sensor correctly.
Sealing element in the cover of the particulate
matter sensor is damaged or not correctly inserted.
> Replace sealing element (item no. 0137 0287)
or insert correctly.
Seal ring of the particulate matter sensor (underside)
is damaged / not correctly inserted.
> Replace seal ring of the particulate matter sensor
(item no. 0137 0285) or insert correctly.
Cover cap is not fitted onto the fresh air inlet of the
condensate container.
> Fit cover cap onto the fresh air inlet.
