Closing sequence of roof vario roof activated.
Vario roof control module.
This impressive system coordinates switches cables and hydraulics.
Slks vario retractable hardtops are probably their biggest single selling point.
I have been working on mercedes benz vehicles since 1997.
Five hydraulic cylinders nine limit switches a control switch four window motors a pump two solenoids a relay cables pulleys and a control module all have to work in sync for the top to operate properly.
Mercedes benz r230 convertible top vario roof common issues.
Next solenoid y5 energizes causing cylinder 3 front vario roof locks to unlock.
It s also one of the car s most problematic systems.
The slk s electro hydraulic vario convertible hard top is its marquee feature.
Control of hydraulic unit control of rear side window motors send function and warning messages over can b read switch position and sensor values control vario roof hydraulic unit relays to change direction of pump motor rotation a7 5k1 a7 5k2 5 limit.
Switches s69 2 3 confirm it s not locked.
Solenoid y6 energizes to prevent vario roof from moving into easy pack then the pump builds pressure.
Solenoid y1 energizes supplying system pressure.
However the top can be a huge headache when it doesn t work as intended.
I also do online diagnostics at www.