Mercedes Top Hydraulic Leak Fixed (SL Class R129)

Mercedes Top Hydraulic Leak Fixed (SL, R129) 1994 Mercedes Benz SL-500 Top Hydraulic Front locks were fixed by replacing the O-rings.
Video Contents:
00:00 Intro
01:10 Lock Mechanism Removal
03:10 Hydraulic Cylinder Repair
07:50 Lock Mechanism Re-Installation
08:40 Old Fluid Draining Technique
09:10 The Result and function of the roof
R129 Top Hydraulics Repair I have done:
1. Front Locks:
• Mercedes Top Hydraulic...
2. Main Lift Cylinders:
• SL R129 Top Hydraulics...
3. Extension Bow Cylinders:
• Bow Extension Cylinder...
4. Rear Locks + Tonneau Cover Lift Cylinders:
• R129 Top Hydraulics: T...
5. R129 Convertible Top Micro-Switches location and testing:
• Convertible Top Micros...
6. R129 Convertible top pump maintenance:
• Check your "Top Hydrau...
/ benz.addiction
/ benzaddiction
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[@wayne2877]

Great instructional video. However the clip removal was not shown, and that is the hardest part. On other blogs they talk about fancy tools to get it out, but i just placed the cylinder in the vice and used a flat head screwdriver to jam behind the REAR of the clip, not the ends. I tried more delicate instruments like dental pics, but they are too weak and bend. The best is a narrow width flat head driver. It has to be strong enough not to bend. Get behind it and "get ready for it to fly". Like Benz Addiction says, wear protective glasses, have it in a vice (protected with rubber like shows), and try to cup it with your other hand when it pops out. Make sure the shaft is all the way pushed down. My clip flew around the room and i got lucky as it landed in plain sight four feet away.

[@BenzAddiction]

Thanks for sharing your experience and explaining to others how to remove the clip 🙂

[@ddau6255]

Thank you for the detailed instructions 👍

[@BenzAddiction]

:)

[@michael-499]

Your tutorial was very informative. Thanks for sharing.

[@BenzAddiction]

Thanks mate 👍

[@sarahsepehr1537]

Looks very nice without the top roof 😍🔥

[@BenzAddiction]

Thank you ;)

[@arakassabian5879]

Fantastic, you took your time and explained what needs to be done and how? Thank you.

[@BenzAddiction]

Thank you my friend for Watching and subscribing :)

[@markbaker6029]

You’ve got a really nice R129 & a very clean example!

[@BenzAddiction]

Thanks Mark :)

[@markbaker6029]

@@BenzAddiction 🙏

[@JLAMacgyver]

Thank you... this is really helpful.

[@BenzAddiction]

👍

[@adek330Ci]

Good work👍👍👍

[@BenzAddiction]

Thanks for Watching:)

[@MrRpe2]

Thank you for positing this. Where did you get the seal kit from?

[@BenzAddiction]

I bought from Ebay.

[@adoniscastillo]

This was a fantastic video, thank you

[@BenzAddiction]

Thanks for Watching:)

[@elbertfulgram9231]

Thanks next project.

[@BenzAddiction]

You are welcome

[@kevinsheahan5449]

I did the seal replacement on my top hydraulic cylinders. Getting that circlip spring out was the hardest part. From memory I used two small terminal screw drivers to lever them out. I need to check that magnetic sensor though I don't remember my car having one, it is a 95 prefacelift model. Unfortunately, I have wiring degrading but that will be dealt with.

[@BenzAddiction]

Hi Kevin, I have read that post 98 models don't have the magnetic sensor, but not sure. Yes removing the first clip took me 40 min and a lot of pondering. In regards to my wiring harness I have not seen any evidence so far, but I do have intermittent engine issues.

[@chrisshaw4243]

Your seals look thicker than mine that I just replaced. Are they the medium thin or the medium thick? My instructions say medium thin?
Great video

[@BenzAddiction]

These might be different depending on year of the car.

[@terrymurphy2637]

Thanks for great informative video!

[@BenzAddiction]

Thank you for watching Terry :)

[@jonny-mj5jl]

i just wished it was all manual instead power, what i call stupid money.

[@BenzAddiction]

Once fixed will work another 20 years with no problem...