Roof leak fixer - sliding compound roof sealer oil

[mdj8]

Hello All, after buying a 2010 SL350, it rained on the way home and my passenger daughter complained water dripped on her from the top of the A-pillar. I wasn't too far from home and was concerned and rather unimpressed at this initial problem. Checking online that a special MB silicon lube may fix the problem, it cost nearly £40- for 30ml. Between showers I found some silicon grease and partially opened the roof, dried the rubber on both sides and smeared a thin film of grease on them. This appeared to fix the problem until I drove the car and water again made ingress in the same place. I researched the MB product and determined I should be able to find an alternative at a lesser cost perhaps without the fancy additives. On e-bay I found some pure silicone oil advertised to use on fishing reels. This was only £4.99 for 30 ml and stated it was pure silicone oil. I've since applied and rubbed this oil into every bit of rubber I can find on the roof and had absolutely no leaks during very heavy rainstorms whether driving or not.

 

[Larkone]

Discussed further here

Hmm, rubber.

Now, of the list of things to do, treating the door seals isn't high on anyone's list. But given that they are 25 years old, many of them are very hard and dry, with the window ones particularly looking as if the car had just been dragged from a field. Which perhaps it has. :confused: Given...

forums.mercedesclub.org.uk

 

[brandwooddixon]

Check the sunroof drains, perhaps the one on that corner is blocked. All sunroofs leak to a small extent.

 

[Alastairp]

No sunroof on an SL

 

[SL63 Mark]

People do recommend Krytox, I am about to buy a bottle and will feed back.

 

[Malcolm Johnson]

Gummi Pflege is what I've been using for 10 years, never leaked. apply yearly

 

[00slk]

Gummi Pflege is what I've been using for 10 years, never leaked. apply yearly

I just applied Gummi Pflege to my Triumph door rubber

 

[brandwooddixon]

No sunroof on an SL

Ah read it as S350