4MATIC
61
Introduction of the New GLK-Class (USA), Introduction into Service Manual for Model Series 204
v
Oil supply
Because of their integrated design, the transfer case
and automatic transmission have a common oil
system.
Oil is fed from the oil return line of the transmission
cooler to the transfer case via a separate feed line on
the housing of the automatic transmission. The oil
feed is limited to approx. 100 ml / min by a throttle in
the connector of the oil line.
There is an oil sump in the chamber of the side output
which is regulated to a constant oil level of max.
700 ml. If the oil level rises above 700 ml when the
vehicle is at a standstill, the oil drains off into the auto-
matic transmission via the central tapered roller
bearing.
Oil exchange at vehicle standstill
1
Oil feed via oil return line from transmission cooler
2
Through-hole to side output chamber
3
Side output chamber
4
Through-hole to accumulator chamber
5
Oil return to automatic transmission via central
tapered roller bearing
Oil feed
1
Oil return line from transmission cooler
1a Fine-mesh filter
1b Throttle
