W140 glass sunroof to W126

[Fred Jan]

Did anyone did this project before, I heard W140 and W126 are the same sunroof capsules, I came across W140 at the JY, I picked the whole capsule, any recommendations how to do it regards adjustment or swapping the capsules ? I saw a couple online videos on youtube showing this

https://youtu.be/i_sMCZx-swU

https://youtu.be/N5nrxA_1NQk

[Jorn]

I've done it with my 1990 300SE. It's a fairly easy swap with the gen II cars, you will need all the parts from the W140, including the seal. The W126 seal isn't air tight enough with the glass panel, awful wind noise above 35mph. Got a new seal from the dealer, $140

It's possible with the earlier W126 and even the W116 models, but you have to swap out the entire capsule, much bigger job.

Kent Bergsma has a couple of excellent videos on his website about how to maintain the sunroof, troubleshoot and adjust them. Well worth the cost.

[Fred Jan]

Originally Posted by Jorn

I've done it with my 1990 300SE. It's a fairly easy swap with the gen II cars, you will need all the parts from the W140, including the seal. The W126 seal isn't air tight enough with the glass panel, awful wind noise above 35mph. Got a new seal from the dealer, $140

It's possible with the earlier W126 and even the W116 models, but you have to swap out the entire capsule, much bigger job.

Kent Bergsma has a couple of excellent videos on his website about how to maintain the sunroof, troubleshoot and adjust them. Well worth the cost.

Thank you Sir, the seal i picked from the W140 at the JY is in a very good condition, I will see how good when i put everything back together, any recommendations or tricks to avoid damaging anything on the way ? do I need readjustment ?

[Jorn]

Originally Posted by Fred Jan

Thank you Sir, the seal i picked from the W140 at the JY is in a very good condition, I will see how good when i put everything back together, any recommendations or tricks to avoid damaging anything on the way ? do I need readjustment ?

Clean the arms and rails real good and lube the arms with the right Mercedes sunroof grease. Adjusting the panel you have to do by trial and error with the two copper colored torx bolts on the side. I'm not sure if there's a real method to it.