![Mercedes-Benz Vario Roof R171 Скачать руководство пользователя страница 29](http://html1.mh-extra.com/html/mercedes-benz/vario-roof-r171/vario-roof-r171_troubleshooting-tree_1772293029.webp)
V
ario
R
oof R171
T
roubleshooting
T
ree
Status July 18, 2006
Page
29/30
4.2
Noises in the hydraulic pump
4.2.1
Intake noises
Complaint:
Noise development in the hydraulic unit on actuation of the roof after lowering of the
Vario roof from the stop function.
Cause:
If the actuation of the Vario roof is interrupted, the Vario roof remains in an
intermediate position (stop function). On lowering of the Vario roof backwards or
forwards from the stop function, intake of air can take place in the drive cylinders
(master cylinders). On subsequent actuation of the roof, an increased noise
development (intake noise) can be heard from the hydraulic unit for a short time.
Measure:
After a maximum of three actuations of the roof, the described noise can no longer be
heard, see GI77.30-P-020502.
SSL: 7732152 Hydraulic pump does not function properly
Important:
This increased noise development for a short time does not mean that the
hydraulic unit is to be exchanged.
Hydraulic units replaced due to this reason may be redebited. See GI77.30-P-
020502.
– This printout will not be recorded by the update service. Status: 10 / 2006 –