Trunk lift cylinders..... Ugh - Mercedes Benz SLK Forum

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#1 Old 06-03-2019
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Lightbulb Trunk lift cylinders..... Ugh

As the Beatles sang...… "I Should Have Known Better"...… I noticed a small wet spot on pavement under left rear quarter. Sure as I am an idiot, it's hydraulic fluid. Knew it was the trunk lift right away. Ordered before I even stripped the trunk. Should be a fairly straight away job.
Last year as Jeff should remember, he walked me through the roof ram... I should have replaced all 5 then. The other 4 are on the way. I should have known if one goes, they all will.... My interior search just took a Backseat..... Pardon the pun...
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#2 Old 06-06-2019
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Originally Posted by RonaldMal59% View Post
As the Beatles sang...… "I Should Have Known Better"...… I noticed a small wet spot on pavement under left rear quarter. Sure as I am an idiot, it's hydraulic fluid. Knew it was the trunk lift right away. Ordered before I even stripped the trunk. Should be a fairly straight away job.
Last year as Jeff should remember, he walked me through the roof ram... I should have replaced all 5 then. The other 4 are on the way. I should have known if one goes, they all will.... My interior search just took a Backseat..... Pardon the pun...

Progress report.... Two trunk lift cylinders are in. They're pretty easy to change out. It's the running of the hoses that takes time. Then it got too hot to do the Main Lift Cylinders. Tomorrow is another day. And supposed to be 10 degrees cooler. I should have the whole thing buttoned up by Dinner.
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#3 Old 06-07-2019
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Progress report.... Two trunk lift cylinders are in. They're pretty easy to change out. It's the running of the hoses that takes time. Then it got too hot to do the Main Lift Cylinders. Tomorrow is another day. And supposed to be 10 degrees cooler. I should have the whole thing buttoned up by Dinner.

All the cylinders are in, I buttoned it up... It closes fine, but the left front of the trunk sticks and won't open. It opens manually and closes manually also. I can't for the life of me figure out which switch in the diagnostic aid it would be. First I'll open it up again and see if I can find something. But, does it sound like S126/1 switch?
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#4 Old 06-07-2019
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Originally Posted by RonaldMal59% View Post
Progress report.... Two trunk lift cylinders are in. They're pretty easy to change out. It's the running of the hoses that takes time. Then it got too hot to do the Main Lift Cylinders. Tomorrow is another day. And supposed to be 10 degrees cooler. I should have the whole thing buttoned up by Dinner.

All the cylinders are in, I buttoned it up... It closes fine, but the left front of the trunk sticks and won't open. It opens manually and closes manually also. I can't for the life of me figure out which switch in the diagnostic aid it would be. First I'll open it up again and see if I can find something. But, does it sound like S126/1 switch?
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#5 Old 06-07-2019
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Does it appear the left cylinder is at least unlatching the left wheel well latch? If not, you should adjust the Bowden cable.
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#6 Old 06-08-2019
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Does it appear the left cylinder is at least unlatching the left wheel well latch? If not, you should adjust the Bowden cable.
I spoke with Klaus at Top Hydraulics. He thinks the cable fell out when putting in the left trunk lift cylinder. Going to open it up tomorrow. Redo the cable connection. Still worth the trouble of doing it myself. A car guy said Mercedes gets $5,000 and upward to install them. Just bugs to work out.
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#7 Old 06-09-2019
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Originally Posted by RonaldMal59% View Post
I spoke with Klaus at Top Hydraulics. He thinks the cable fell out when putting in the left trunk lift cylinder. Going to open it up tomorrow. Redo the cable connection. Still worth the trouble of doing it myself. A car guy said Mercedes gets $5,000 and upward to install them. Just bugs to work out.
Glad I had this problem.... Not a switch, not a bug. The pull cable had become so frayed over the years it stretched and snapped upon my first install. New pull cable ordered. I guess it will be a hard top until the part arrives.
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