Webasto Air Top 2000 ST B Installation Instructions Manual page 21

Air Top 2000 ST Fuel supply
7.5.2. Installation and attachment
The metering pump must be secured with a vibration-damping mounting
(for example a rubberised clip). Its installation position is limited as shown
in Figures 14 and 15 in order to ensure effective automatic bleeding.
As a result of the risk of corrosion, only genuine Webasto parts may be
used for the plug connections between the metering pump and the meter-
ing pump wiring harness.
7.6. Fuel filter
Only a Webasto filter, order no. 487 171, is allowed to be used if the fuel
is expected to be contaminated. Install vertically if possible, however at
least horizontally (check flow direction).
0° - 90°
Fig. 16: Fuel filter
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