Pagoda SL Group

W113 Pagoda SL Group => General Discussion => Topic started by: jimj on May 10, 2006, 12:22:49

Title: Wiring assistance needed.
Post by: jimj on May 10, 2006, 12:22:49

Just got my 280 back from the mechanic after having a routine rear brake job turn into the brake job from h*ll, and he also deterimined that my transmission kickdown problem is related to the wiring between the switch and the transmission.  We're getting voltage to the switch and out of the switch, but no voltage to the electric solenoid on the tranny itself.  He needs a wiring schematic of the transmission kickdown circuit to complete his diagnostic, and his reference materials don't go back to my car.

I've searched the site, and the only references I can find to wiring diagrams are related to the ones in the latest Pagoda World, which I do not get.

I've also reviewed the links to http://www.pagode.info/28.htm, but I speak better hillbilly than German, so I can't translate this into something I can use.

Is there something else available that I could use?  While I could use an entire schematic, I'll be happy for now with the transmission kickdown circuit, as the rest of the electronics are working correctly.  This car has had a Mercedes rebuilt trans installed at one point in it's history, so maybe something's it's as simple as something not plugged in somewhere, or a wire has been broken.

This is for a 1968 280SL with automatic trans.

Title: Re: Wiring assistance needed.
Post by: Cortez-Campos on May 10, 2006, 14:37:02

try use this link www.babelfish.altavista.com to translate your link www.pagode.info/28.htm

chose "oversæt en webside" ( translate a webside ) chose language tysk - engelsk ( german - english ) then press oversæt ( translate )

I can't find your kickdown switch, but perhaps you can ;o)

280 SL 1969 anthracite 172, with red inteior.

Title: Re: Wiring assistance needed.
Post by: jimj on May 11, 2006, 05:48:50

Thanks, but it's as you said....It's not on that diagram.  Well, guess I'll just have to keep poking around.

Title: Re: Wiring assistance needed.
Post by: jeffc280sl on May 11, 2006, 14:44:48

The kickdown circuit is very simple.  The Kickdown switch receives power from fuse #3.  The other side of the switch is connected directly to a magnetic valve on the automatic transmission.  There must be a break somewhere between the kickdown switch and magnetic valve.  Try running a new wire and test the circuit operation.

Jeff C.
1970 280SL 4-speed

Title: Re: Wiring assistance needed.
Post by: userzweig on May 12, 2006, 16:21:15

There's a very clear diagram of how the automatic transmission is wired at Sun Valley's site:
http://www.mercedesdismantlers.com//16BoltInstallationInstructions.html

This should do the trick.

Bruce

1971 Copper 280SL Automatic