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.