Vario Roof Control Module

Closing sequence of roof vario roof activated.

Vario roof control module.

Next solenoid y5 energizes causing cylinder 3 front vario roof locks to unlock. Solenoid y6 energizes to prevent vario roof from moving into easy pack then the pump builds pressure. However the top can be a huge headache when it doesn t work as intended. I also do online diagnostics at www.

This impressive system coordinates switches cables and hydraulics. Slks vario retractable hardtops are probably their biggest single selling point. 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. Switches s69 2 3 confirm it s not locked.

Control module limit switches control module n52 tasks. If the controller senses that one component isn t working it can cancel the whole job of lowering or raising the roof. I have been working on mercedes benz vehicles since 1997. 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.

It s also one of the car s most problematic systems. Solenoid y1 energizes supplying system pressure.