Yawn. It takes a far dumber question to top me.

If the brakes work, the vacuum pump works. If the door locks and ACC work, the vacuum pump works. If you still have a vacuum actuated wastegate and the turbo is boosting, you have vacuum. Maybe a vacuum line came off at the IP VCV or transmission modulator. Don’t worry about the bigger black line from the side of the VCV to the cabin. That’s a vent that doesn’t connect to anything. If your car has that blue circular thing behind the ABS pump, there are even more vacuum lines that affect shifting.

Sixto
98 E320s sedan and wagon
02 C320 wagon