You'll need a vacuum line diagram specific to your year and model for a conclusive answer. Euro models differ greatly from the US versions in regards to emissions controls and the vacuum line diagrams since there are different HVAC systems and various emissions controls driven from vacuum.

Different car, but may point you in the right direction: My 500SL Euro (M117 engine) has 2 thermo-time valves in it. One goes to the vacuum advance on the distributor, the other goes to the vacuum pod on the EGR valve.

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Current stable:
1995 E320 149K (Nancy)
1983 500SL 120K (SLoL)

Black Sheep:
1985 524TD 167K (TotalDumpster™)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)