How does the vario roof diagnostic aid work?
Vario roof activated. Pump builds pressure, (y1) energizes, then (y3) and (y4) energize, forcing roof forward to ease tension on locks. Next (y5) energizes, causing cylinder 3 to unlock the front Vario roof locks. Switches S69/2 & /3 confirm it’s not locked. Next, cylinders 4 & 5 unlock the tubular frame.
What are the cylinders on a vario roof?
Those cylinders are the top lock cylinder A230 800 08 72, the two Frame Lock Cylinders A230 800 09 72 and A230 800 10 72, and the Trunk Lid Frame Cylinder A230 800 13 72. If any one of these cylinders had an internal leak (past the piston inside), then that will rob power from the pump, thus slowing the top down.
What should I know about vario roof troubleshooting tree?
Vario Roof R171TroubleshootingTree Noise, leaktightness, fit and function analyses as well as important repairs including related damage codes (SSL) and chassis numbers (VIN).
Is the roof pump on a Vario close to failure?
Click to expand… Your Vario roof pump 2308000348 (p/n directly on the pump is 2308000030) was indeed close to failure, but this wasn’t the reason for the top slowing down. I will explain the reason for the slow top below – let’s cover the pump briefly.
Vario roof activated. Pump builds pressure, (y1) energizes, then (y3) and (y4) energize, forcing roof forward to ease tension on locks. Next (y5) energizes, causing cylinder 3 to unlock the front Vario roof locks. Switches S69/2 & /3 confirm it’s not locked. Next, cylinders 4 & 5 unlock the tubular frame.
Those cylinders are the top lock cylinder A230 800 08 72, the two Frame Lock Cylinders A230 800 09 72 and A230 800 10 72, and the Trunk Lid Frame Cylinder A230 800 13 72. If any one of these cylinders had an internal leak (past the piston inside), then that will rob power from the pump, thus slowing the top down.
Vario Roof R171TroubleshootingTree Noise, leaktightness, fit and function analyses as well as important repairs including related damage codes (SSL) and chassis numbers (VIN).
How to troubleshoot a vario roof frame noise?
Press the handle (pos. 4) a bit to the inside and grease the pin (pos. 3) on pivot 1 with low-friction paste, see GI77.33-P-036569. SSL: 7920336 Vario roof frame noises
How to fix a loose eccentric on a vario roof?
Contact surface of the eccentric to the roof frame is painted. Measure: 1. Only if the eccentric is loose: Remove eccentric (pos. 1), drill bore (pos. 2) in the handle (6.2 mm), apply corrosion protection (briefcase black) in the bore, see GI77.33-P-032755. Remove paint from the contact surface (pos. 3) of the eccentric.
Click to expand… Your Vario roof pump 2308000348 (p/n directly on the pump is 2308000030) was indeed close to failure, but this wasn’t the reason for the top slowing down. I will explain the reason for the slow top below – let’s cover the pump briefly.
Which is the first cylinder to fail on a Vario?
The top lock cylinder 2308000872 (A230 800 08 72) is usually the first cylinder to fail, out of a total of eleven hydraulic cylinders in your Vario roof and roll over bar system. I will get into more detail below. You clearly want to get the cylinder upgraded, instead of buying the same future problem again.
How to mount a Mercedes-Benz Vario roof hydraulic cylinder?
The white trunk panel mounting bracket (yellow arrow) was moved to the side to aid photography. Next, the pin that secures the cylinder’s body to the car can be pulled. The retaining clip seats in a groove on the pin (arrow). The plunger end’s pin (arrow) is pivoted away from the fork-shaped mount.
Where is the hydraulic pump on the roof?
The main roof cylinders (left one indicated by arrow) are located between the roll bars and quarter windows. Note how each hydraulic hose is numbered. The ports on the pump are also numbered to eliminate plumbing confusion. The cylinder in the roof (arrow) is responsible for latching it to the windshield frame.
Where are the hydraulic valves on a Mercedes SLK 230 Vario?
Right Main Between Right Quarter Window & Roll Bar 170-800-06-72-MBZ The hydraulic pump builds the necessary pressure for operating the cylinders. Its two-solenoid valves (the visible one is indicated by the arrow) distribute the fluid to the cylinders in a specified sequence to lower and raise the roof and trunk lid.
What are the hydraulics on a vario roof?
The R230 Vario roof hydraulic pumps are definitely high-end compared to the about hundred other models that we rebuild at Top Hydraulics – higher than average pressure, flow and number of functions in the valve block.
Where are the switches on the R170 vario roof?
Other articles show how to operate the roof manually when necessary. Here, we reveal the locations of the nine switches in the R170’s Vario roof system. The actual switches are often part of larger housing assemblies. This permits the switches to be replaced independently, avoiding the higher cost of replacing the whole shebang.