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Discussion Starter #1
Sorry for posting it here, but I assume there are more experts here than in W124 thread.

It looks (visibly) that my soft tiop is not locked completely at the rear. The red soft top light blinks, the alarm is buzzing when the car starts to move. I looked at the hydraulic tank and it is empty :(

My questions are:
- how to lock the rear of the top manually (very small gap is visible now, the top ALMOST locked)
- location of all hydraulic cyllinders in W124 body.

Thanks
 

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Not familiar with the W124, but if the hydraulic tank is empty may be you can just fill it to get the top to lock. With the top working again, you can then move on to find the leak.
You need to use MB approved hydraulic fluid, not the 'cheap' one from Auto-stores or risk contaminating the rest of the system and more leaks in the future.
 

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Discussion Starter #3
Thanks. I am waiting for Febi fluid to arrive. In the mean time I'd love to lock the soft top. I inspected it today again and found that there is a center latch (under the rear window) that is not locked. The pin did not go all way thru. I tried to push it and it did not go. I try to avoid brutal force.
 

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Sorry for posting it here, but I assume there are more experts here than in W124 thread.

It looks (visibly) that my soft tiop is not locked completely at the rear. The red soft top light blinks, the alarm is buzzing when the car starts to move. I looked at the hydraulic tank and it is empty :(

My questions are:
- how to lock the rear of the top manually (very small gap is visible now, the top ALMOST locked)
- location of all hydraulic cyllinders in W124 body.

Thanks
Please tell us the year of your car.

MY93 300CE, MY94-95 E320 Convertible 124.066 chassis 104.992 engine
 

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You can get a free, year-long subscription to the Mercedes EPC here ---> EPC-net Online it will list all the parts of the top hydraulic system including the cylinders and give you a general idea where they are with a diagram.
 

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Discussion Starter #7
Bad leaking sound

Thanks a lot for the info. I read the above mentioned thread before posting here.
I added some hydraulic fluid and tried to play with the roof. It finally locked at the rear. I could hear fluid rushing from the pump.
I tried to open the roof and heard like a very bad leaking sound. All fluid was gone in a minute!
The sound comes from behind the rear seat backrest. Here are my next questions:

- how to manually unlock and open the cover?
- how to remove the backrest of the rear seat? I removed the cushion with no problem.
I want to get access to the leak to inspect it.

Thanks again.
 

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Discussion Starter #8
OK. Now I see huge leak just behind pass. rear wheel

It looks like all hydraulic fluid I added in previous step is on the ground. I assume it is a "standard" problem for this cars ? Gurus, please advise me which cylinder is leaking and how to get it out? Thanks.
 

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Here are my next questions:

- how to manually unlock and open the cover?
- how to remove the backrest of the rear seat? I removed the cushion with no problem.
I want to get access to the leak to inspect it.
Since I have been the Moderator of the R129 Forum you are probably one of the first W124 members that has been advised to come over to our forum requesting information on your car. Probably because our cars have a total of 11 hydraulic cylinders that can/will need repair. And believe me when I say many of our older car owners deal with this routinely.

May I suggest that you check your Owners Manual for manually unlocking the rear cover. If you don't have a manual ask your W124 Forum if they have a 1994 MB E320 Cabriolet W124.066.PDF from there MB CD.

I'm sorry to tell you but most of us don't know your car's design but what I can do is suggest that there are several ways to approach your situation. Please read R129 STAR Classic Service Manual Library on DVD, STAR TekInfo, ALLDATAdiy, EPC
1) Go to your local library and see if you can get FREE information from ALLDATAdiy. If not you may want to purchase a full years subscription. I have done so and found it to be very usefull.
2) Buy a subscription to STAR TekInfo. It is essentially the same info that you get on a W124 STAR Classic CD. I have not gone this avenue but others have and they find it very good.
3) Purchase a W124 STAR Classic Service Manual Library on CD form Mercedes-Benz.
4) After you decide that you are going to DIY may I suggest that you contact Dennis Ficken. He can rebuild your cylinders for $40/each plus S/H. Please see Dennis Ficken contact info
5) This is a very valuable parts site at Russian Parts Site for the 124.066 E320
 

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Hello, I'm having a lot of trouble with my A124 / E320 1994 cabrio and was hoping to look at the link quited by Lynns but when I click on the hyperlink, it comes up as this http://www.*****************/shopforum/showthread.php?p=1653310#post1653310.

Does anyone have a working link for 1995 E320 Cabriolet hydraulic top operation problem, please ?

EDIT: Added in my own problem with my W124 folding roof system to keep the timeline straight in this thread.

Help !!

I just had this same problem today.

The roof would lower fine and wouldn't raise at all.
The red controller light/button on the centre console
goes bright red but nothing happens.
The safety chimes related to the soft top stopped working too.

I had to raise the roof manually because it was raining.
Luckily I had the supplement to the owners manual that illustrated how to do it.

What normally causes faults with these w124 Convertible roof systems ?

I'm thinking myself that in my case, it is the controller / wiring / relay
as previously:

1. the roof function was fine
2. then she didn't like to close immediately.
3. then she would only close the roof if the car ignition
was left off for 40 minutes ( to leave SOMETHING to cool off I presume)
4. and now it opened great fully automatic no problem
and refused to close so I've had to manually close it now...

It's a pity the convertible control system is not the exact system as the SL
as there seems to be a wealth of information about these on here.
 

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Don't PM me. Let's keep the information public on this forum so future posters can search for answers. I'll help answer any questions lynns cannot answer in this thread.

Pretty much all I know is in the links lynns provided.
 

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So, I found block x11/4 in the footwell, connected up my LED
via the "any other colour" pin to socket 2 to read off the codes from the soft top controller,
and all I got was a steady light, no pulsing or flashing.

Ignition key in Position 1 on or fully on either with engine running or not running:
It was the same steady light with no discernible pulsing
or flashing or pulsing on and off.

With the key off the LED does not light up.
Am I doing something wrong ?

I was using this design of unit as a template for my design.
The picture is not mine, I did not draw it.

Link for image: http://www.peachparts.com/shopforum/attachment.php?attachmentid=37619&d=1162392878

 

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I recognize that sketch as something I provided. It works for me and nobody has complained about it so I can assume it's good.

You described the hookup properly, so I don't know why you get a steady light on. It should be off. Were the (+) and (-) connections made at the battery? Did you try pressing the momentary switch down for 2-4 secs?
 
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