300CD (123.153) L5-3.0L DSL Turbo (617.952) (1982)
Engine Oil Cooler Thermostat: Service and Repair
NOTE: Remove functioning thermostat only at temperatures below 60 °C, since otherwise the thrust pin (a) will be pushed out.
Never pull thrust pin (a) out of wax thermostat (11), since otherwise proper function cannot be guaranteed.
10
Compression spring
11
Thermostat
12
Control valve
13
Spring retainer
15
Compression spring
16
Return flow locking valve
17
Valve seat ring return flow locking valve
Removal