Join Date: Jan 2009
Location: Basking Ridge, NJ
Vehicle: 2001 SLK320
Other Toys: 1996 Acura NSX-T
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Simple possible sluggish or stuck roof fix
My wife purchased her 2001 SLK320 new and I've done the majority of repairs and maintenance on it. One nasty problem that happened nearly 10 years ago was the top getting stuck part way up while on a trip. I manually got it closed using the wrench in the tool kit, then sought a fix when we got back home.
The solution was incredibly simple! Using the wrench, I opened the roof a small amount. The grease in the mechanism had dried. I injected silicon spray (Solder Seal GUNK heavy duty Silicone Spray Lubricant was the brand I used) through the slots where the latches emerge from the bow, being careful not to over do it and have it get into the headliner.
At that point, I hit the button to close the roof and it worked! I then fully operated the top up and down electrically and it was fine. All these years later and the roof still operates correctly, and I've never had to lubricate it again.