Danger! | Risk of injury caused by pinching or jamming when working on loaded springs or spring bodies | Use only approved clamping devices; shield off hazard area if necessary. | |
Danger! | Risk of injury as a result of trapping or crushing when working on the partly open Vario roof (stop mode) or within its closing range as a result of the Vario roof suddenly collapsing | Secure the Vario roof with a suitable special tool. | |
Danger! | Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities. | No parts of the body or limbs should be within the operating range of the mechanism when moving components. | |
Connecting and using test equipment | |||
Vario roof (VR) diagnosis, previous knowledge | |||
Vario roof (VR), location of hydraulic components | |||
| Before starting the test, check the oil level in the hydraulic unit reservoir and correct if necessary (Maintenance Manual). Oil loss in supply reservoir | ||
| To enable inspection work to be performed correctly in the event of loss of fluid from the hydraulic system, remove any trim elements which conceal the hydraulic components. | ||
| The front catch can be locked or released with the emergency operation key (in toolkit) the catches in the trunk can be released via the pull cables (see operating instructions). | ||
| The hydraulic circuits for the individual roof movements and their hydraulic components can be checked individually. | ||
a | Connect up pressure gauge according to connection diagram | ||
b | Check hydraulic unit and hydraulic cylinder for Vario roof |