Hello all. I have been been speaking with Klaus at Top Hydraulics and he has asked me to post here.
I have recently purchased a 1999 SL280 with 67000 miles on the clock. The Tonneau Cover is slow to raise. I checked the Hydraulics and there are no leaks whatsoever.
When I raise the Tonneau Cover by hand it feels heavier than my friends 1997 SL320 with 99000 miles. We are considering swapping the Hydraulics over as it seems straightforward.
I have noticed that on one side (USA drivers side) there is a Black Strut. Does this move like a piston or is it solid all the way through?
I have lubed the working parts with WD40 and it felt easier to raise up. I could not try it out with the switch as I think I have drained the battery somewhat as the Red Switch blinks. Battery is on charge so hopefully I can test it tomorrow.
If it does not improve then I'll look at swapping the Hydraulics over but I'd like to know if I need to swap the Black Strut over also?
Thanks in advance,