Mercedes-Benz 300CE

1993 Mercedes-Benz 300CE Electrical / Lighting Systems   

I have a 1993 300CE Cabriolet. The top went down but wont go back up. I have checked the relay and fuses and also replaced the switch with a new one. The switch lights and the warning bells sound but the top does not come up. I do not have an owners manual so I do not know if there is a sequence for raising the top. Is there any way to short across wires to get the top to come up.

Does anyone happen to have a wiring diagram for this car.

Hello, I found a two page wiring diagram I can send to you for the convertable top. May I have your email address please? It will be in Adobe format.

Roger

Hi Roger,
Yes, that would be great and will be an excellant place to start my troubleshooting. Do you happen to know where I might acquire a wiring diagram for the rest of the car? Will need shop manuals etc. for the car as I am 500 miles from the nearest dealer and do most of the work myself. Would be willing to pay for these manuals. Thanks, Craig

Hi Roger,
Forgot to give you my email address. It is [redacted] Looking for owners manual also.
Thanks again
Craig

I won't have an Owner's Manual. Have you tried eBay? Or, www.helminc.com

I'll send the diagrams. If not in your inbox be sure to check your spam/junk mail.

Roger

After looking at the wiring diagram it seems there is a testing module for testing the top that I do not have access to. Have talked to several parts places and they advised that it probably the soft top control module. Unfortunately this is a $1000.00 part. I hate to buy it without knowing for sure that mine is bad. Was wondering if anyone had access to a similiar car that I could send them my top module and they could plug it into their car and see if it works. It is very easy to access and would take just a couple of minutes to check. Also is there any way at all to get the top up manually.
Thanks,
Craig

Perhaps you could locate a salvage part. I doubt any owner would accomodate swapping the part with a known good one to see if yours is a good one. If the slightest abnormality occured they would want you to buy them the Space Shuttle.

See: http://www.all-parts.com/recycler/parts-finder/

This is a free search.

What luck can you expect by calling the dealer near you to ask them how to raise the top manually?

Roger

I found this while surfing the Web Site MBUSA.com

Our Customer Assistance Center is open 24 hours a day, seven days a week, to assist you. If the information you seek is not at our Customer Care web page, contact us at 1-800-FOR-MERCEDES ([redacted] ), or send correspondence to: Mercedes-Benz USA, LLC Customer Assistance Center 3 Mercedes Drive Montvale, NJ 07645.

Roger

Have I helped you with this latest info?

Roger

Hi Roger,
We did some more checking and did find the manual latch to open the boot and manually raise the top. Upon further checking we did find that the soft top lock switches were stuck . We did get the top working and hope that it continues to work. The car has been sitting for quite sometime and the switches may have gummed up or something. The wiring diagram that you sent was helpful and this is where we traced the switch problem to. We are very happy that it was not the module ! Thanks so much.
Craig

Hi Again,
Forgot to ask you if you might have the wiring diagram for the rest of the car.
Thanks
Craig

Ready to close the question? Please click on OK to finish up. Good job sir!

I thank you,

Roger

The only wiring diagrams I have are located on a data base that is a subscription only service. I would have to request a diagram for each system by name. Too expensive to pursue!

The Web Site MBUSA.com has some links for manuals, etc. Please check them out.

Roger