Limit values
Service Data
Dimensions
167
Cover for heat exchanger
Filler cap with safety valve:
Safety valve with imprint 1.5 opens at 1.3
bar−1.7 bar above atmospheric pressure
Valve cover:
Working valve with imprint 1.0 opens at
0.85 bar−1.15 bar above atmospheric
pressure and 0.02 bar −0.08 bar below
atmospheric pressure
Warning:
If the cap with the working valve is
opened, there is the risk that it will not
close tightly again afterwards.
The excess pressure required in the sys-
tem will then no longer build up. Prema-
ture boiling occurs and coolant is lost.
To prevent damage to the engine open
this cap only in exceptional circumstances
or during service work and fit a new one
as soon as possible.
Thermostat
Opening begins at: 82−86_C ($2_)
Fully open: 95_C ($2_)
Lift at least: 9,5 mm at
95_C
(The temperature for the start of opening
is printed on the thermostat)
Change seal if thermostat is removed
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