W124, 1995 E320, 200KKm
No issues whats so ever.

Suddenly dashboard partially stop to work.
Whats working:
Speedo
clock
odometers
Temp gauge
backlights
Some lights on startup - batt, SRS

Whats doesn't:
Everything else- oil pressure, gas, RPM
Parking Break lights

There is a light sipping noise around the dash.

Sounds like electrical is OK, but vaccum leak somewhere.
the car is fully functional otherwise.
Any ideas - Where the leak can be.

Regards

I don't think you have a vacuum connection there - that was older models with the economy gage. Check elec diagrams for a fuse.

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Prost!

The white one - issue resolved