SL/R129: 95 E320 Cabriolet hydraulic top operation problem
Thread Starter
Super Member
Joined: May 2003
Posts: 696
Likes: 4
From: Motor City
95 E320 Cabriolet, 108K
95 E320 Cabriolet hydraulic top operation problem
I just had all eight of the hydraulic cylinders from my convertible mechanism removed, rebuilt, and reinstalled. Now when I go to operate the top, it keeps hanging up or stop moving. I was extremely careful to label and reinstall the hydraulic lines in the proper positions. The hydraulic reservoir is full and topped off with fluid as needed.
What's the magic that needs to be done to get the top to work properly after repair? What needs to be reset? I remember having a similar problem that last time I worked on the hydraulics. It seemed to work itself out after a while. I've tried everything I can think of... manually setting the top in the full up and full down position, then starting operation... disconnecting the battery in hopes of resetting the mechanism.... all to no avail.
I'm posting on the SL forum because there's a lot of similarity between the mechanisms and there's so few people in the E-Class forum that know about cabriolets.
What's the magic that needs to be done to get the top to work properly after repair? What needs to be reset? I remember having a similar problem that last time I worked on the hydraulics. It seemed to work itself out after a while. I've tried everything I can think of... manually setting the top in the full up and full down position, then starting operation... disconnecting the battery in hopes of resetting the mechanism.... all to no avail.
I'm posting on the SL forum because there's a lot of similarity between the mechanisms and there's so few people in the E-Class forum that know about cabriolets.
Thread Starter
Super Member
Joined: May 2003
Posts: 696
Likes: 4
From: Motor City
95 E320 Cabriolet, 108K
I found how to read the codes for the top mechanism. After reading the codes, I erased them, then put the top through its paces until it faulted. I get:
Code 10 - Soft top fabric bow "raised" limit switch
What my top does, is from the top-up position, it unlatches and raises the compartment cover, raises the rear glass, then faults.
I took the three-in-one limit switch unit out from the driver's side rear quarter and tested them. All switches work fine. There's no adjustment, and I can feel the switch click when I raise the rear glass manually to the up position.
Am I checking the proper switch?
Code 10 - Soft top fabric bow "raised" limit switch
What my top does, is from the top-up position, it unlatches and raises the compartment cover, raises the rear glass, then faults.
I took the three-in-one limit switch unit out from the driver's side rear quarter and tested them. All switches work fine. There's no adjustment, and I can feel the switch click when I raise the rear glass manually to the up position.
Am I checking the proper switch?
