If you have replaced any part of the turbo control system, you will have probably disconnected the vacuum/boost pipes. However, it is not easy to remember which pipe goes where. The following diagrams show the arrangement across all variants of the city-coupe, city-cabrio and fortwo 450.
Click on each of the following to make larger:
Images of this arrangement for a mk7 fortwo (with cycle valve) are as follows.
Wastegate Actuator:
The whole arrangement (click to make bigger):
