SL/R230: 2008 SL550 Convertible Won't Close
Thread Starter
Newbie
Joined: Aug 2019
Posts: 4
Likes: 0
From: Sparta, NJ
2008 SL550
2008 SL550 Convertible Won't Close
Tried closing my convertible, the trunk lifted up, windows retracted but the top didn't budge. I can hear the motor running. I found what looked like a reservoir under the spare tire. Is that the hydraulic fluid reservoir? Anyone have similar issues? Thx
Banned
Joined: Jan 2006
Posts: 1,982
Likes: 393
From: Atlanta, unfortunately
'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
MBWorld Fanatic!
Joined: Mar 2018
Posts: 1,442
Likes: 260
From: Netherlands
2005 R 230 SL350 (M112 3.7). Sold the 1966 W113 230SL recently
Reservoir? Plastic line? Sounds to me like you’re referring to the buffer for the pneumatic system. Assuming we’re talking R230 SL, the roof pump is located to the left, next to the spear tire. It is sound proofed by a gray foam block. Go easy as you pull it of as it should be tucked in under metal at places. Now you can see the hydraulic reservoir, directly attached to the pump. (Below sits the pneumatic pump, for all locks and some seat features).
Last edited by Frederick NL; Aug 26, 2019 at 03:02 PM.
MBworld Guru
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
This may help you identify the hydraulic fluid reservoir and check its level:
http://benzbits.com/r230/roof/FluidLevelRevised.pdf
http://benzbits.com/r230/roof/FluidLevelRevised.pdf
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBworld Guru
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
It sure could, especially if there is a leak in a roof lift cylinder. That would explain the fluid loss and lack of lifting power.
Newbie
Joined: Jan 2015
Posts: 13
Likes: 1
From: Lawrenceville, GA
R231 SL63
I had somewhat of the same problem on my R230 2009 SL63. The conv top and truck cover would not open or close. At first it was having slowness issue then would open/close. It was having issues opening from the back and closing with the buttons on trunk lid. Finally stopped altogether. I also was starting to have issues with the keyless lock system . Took to the dealer and got it fixed. It was the passenger side control module. This unit controls flasher, turn signals, the conv top and a few others. Expensive but not sure the other MB mechanics could have figured this out. Dealer had the part in stock and validated before repair and replace. Ok so it was expensive, ~$1100. But as other issues were weird and hard to diagnose, all if fixed.
