Out of interest have any of you got the cassette that came with the cars when they were new explaining how every thing works? If not I will try to get it on MP3 & post it.
Cheers
Chris
Chris, in the US I don't think we received an audio cassette when the car was new but I hope you know that we did recieve a left hand drive Owners Manual that can be found at http://www.benzworld.org/forums/r129...load-site.html
I have found out that code 15 means: limit switch soft top up (secondary closing speed)
Does anyone know what that means? or where the limit switch is situated?
The limit switch you mention is "S84" and is located at the B-pillar on the left side of the car (picture). This switch is supposed to close when the leading edge of the top is at the front latches, and it signals the controller to reduce the force on the hydraulic cylinders driving the top. Your code 15 suggests to me that your switch may be stuck closed or otherwise damaged.
If the switch appears undamaged, then I would check its input to the soft top controller with a basic electronic multimeter. This post explains how to check all of the switches: ShopForum - View Single Post - hard/soft top troubleshooting question 91SL. S84 is wired to socket #28 of the "Y" connector to the top controller. When the top is closed, it shorts to ground; when the top is in the compartment, it is open-circuit.
If you have any questions about testing the switch or don't own a multimeter, then post back for further help.
Quote:
Originally Posted by Canex
Out of interest have any of you got the cassette that came with the cars when they were new explaining how every thing works?
The R129 Tech DVD from MBUSA includes manuals for all the radios that were installed over the years including the stereo cassette that you mention. If you have a specific question someone can probably answer it for you.
Last edited by bobterry99 : 05-11-2008 at 12:45 AM.
Hi,
I tried that switch & it's working OK - so is the one that signals when the deck is open. I think the fault 15 must appear because the switch S84 does not change because the roof does not go up to press it.
I can't seem to get a reading from the Y plug - I assume the other 2 need to be connected to the controller - does the ignition need to be on? and am I supposed to be testing the plug or the controller?
It's as if something isn't telling the relay to kick in or the relay is working but the fluid isn't getting to the rams.
Any more ideas please?
thanks
Chris
PS When I was talking about the cassette - I have one already - I was just wondering if I could send it to anyone who hasn't (if I can change it to MP3 somehow!)
I can't seem to get a reading from the Y plug - I assume the other 2 need to be connected to the controller - does the ignition need to be on?
It doesn't matter whether the other two are connected or not, but the Y-connector has to be unplugged, because the switches you will be checking are wired to it. The ignition should be off. You should have one lead of your tester connected to chassis ground and the other lead touching the socket of the Y-connector you are checking.
You may as well check all of the limit switches while you are at it. At the point your top quits if the windows are lowered, then the system is in "Position 2" mentioned in the post "ShopForum - View Single Post - hard/soft top troubleshooting question 91SL":
Position 2 (Top open but storage compartment cover open, windows and roll bar down)
Open: 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 28
Closed: 10, 22, 27, 29, 30, 31
The numbers above correspond to socket numbers on the Y-connector (picture).
Vehicle: 2000 Obsidian Black Metallic Mercedes SL 320 V6
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Posts: 3,211
Quote:
Originally Posted by Canex
PS When I was talking about the cassette - I have one already - I was just wondering if I could send it to anyone who hasn't (if I can change it to MP3 somehow!)
Hi Canex and welcome aboard.
If I didn't misunderstand you, you want to convert the cassette to MP3 right ? If so you can look for a program called dBpowerAMP that pretty much converts anything into anything. The thing is that you have to connect a casette player into your computer line-in socket and actually record it in real time.
It will take you some time but you are done this way.
Cheers.
__________________
I drive like I stole . . . YOURS
PS When I was talking about the cassette - I have one already - I was just wondering if I could send it to anyone who hasn't (if I can change it to MP3 somehow!)
Please do convert and post it here. Our cars in the USA did not come with it and I suppose watching it is better than reading.
Thanks for offering.
Hi, I have tested all pins at the 'Y' plug & they are all as they should be in both position 1 & 2.
I am starting to think it might be the controller module (gulp)
I have checked at Y55 and there is no voltage when the button is pressed.
Are there any pins/connections I can short to bypass the controller?
Chris
PS - I can't find where my wife has 'filed' the audio cassette - I will let you know when I have found it.
I have checked at Y55 and there is no voltage when the button is pressed.
Are there any pins/connections I can short to bypass the controller?
There are eight wires connected at Y55: four are grounds and each of the other four is a control wire for a solenoid. So, you checked all four with the switch pressed at the point the top should rise?
Bypass the controller...For what purpose? If it is to raise the top out of the compartment you could hot-wire the hyrdaulic pump and a solenoid or two, but it is probably easier to just lift it out with your hands.
Hi Bob,
I tried the connection at Y55 (Y55/4 I think - the picture you sent me earlier in this thread) which is the solenoid that pipes 70 & 72 go to & there is no voltage when the roof button is pressed.
I am trying to find where the supply to Y55 comes from.
I only wanted to short or bypass it to find out what part is faulty so that I can replace it.
cheers
Chris
By the way I am 8 hours in front of you here in the UK - it seems to take forever to get a reply!!
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