work to own, 1991 300SL 3.2L manual?

[300E_And_A_Taco]

this car is a florida title, "Certificate of Destruction"
all parts are legal to use, the chassis is not tho.
will the electrics, gearbox, linkages, and all the other whatnot swap over to my 89 300E?

[stormtigers]

Do a search on M103 to M104 conversion see what issues people have had.

Anything can be made to fit. and you have all the electrics etc.

I have no experience with this but things that come to mind are :

- the wiring might be unuseable due to size differences between the two cars (i.e not long enough wiring to cabin computers etc)

- probably need a different tail shaft due to length difference in vehicles and going manual transmission.

- instrumentation will be needed the 300SL cluster probably wont fit the 300E (tacho, speedo will be wrong in the 300E after the change)

- engine/transmission mounts quite possibly different between an SL and an E.

Good Luck and try to photo/document the process because I am sure there are lots of people interested !

[Jayare]

It would take a bunch of work, but is doable. That SL has a M104.98 motor. The motor was only available in 90-92 300SL's and 300CE's in North America. One critical and specific part of the electrical system is the EZL. Nothing from any other model will work. All of the other electrical components will be needed as well as the CC amp, brake/clutch switches. Instrument cluster and differential. Get the big brakes off all 4 corners as well.

Take a deep breath and go for it. The 300E would be pretty stealthy.

Jayare


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[300E_And_A_Taco]

I figured there would be wiring issues but I'm sure I could figure something out writh my silver solder and patience. All the parts are avaliable, including the cluster. If the tach is ran from the transmission signal and the speedo is ran from the wheel speed, I'd only need to adapt the tach? What about feeding the relocated battery? Use the 300E wiring for that only? Of course I'd cut that portion out, or should I relocate the battery and place the computer components under the battery's existing spot?

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[Jayare]

No battery relocation is required. This is a CIS injected motor, exactly like your 300E.

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[300E_And_A_Taco]

If thats the motor then I'm dropping the motor on the floor and doing a megasquirt. I pray to baby jesus it's a sfi system. No more premium!

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[elbeik]

The instrument cluster is different; it also gives the impression of being identical to the w140, and yet again, it is not.

[300E_And_A_Taco]

Has anyone ever done this swap?

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[Bangaway]

If you're going to do a swap make the effort worthwhile and swap a big horsepower motor in.

[stormtigers]

Originally Posted by Bangaway

If you're going to do a swap make the effort worthwhile and swap a big horsepower motor in.

M119 baby !