91 300SL Replacement Blower Motor adapter needed help
 

Hello,
It is always good to count on the very valuable help that forum members can provide (and I hope that I'll be able to help as well in the future).
I am replacing the blower motor on a 1991 300SL, the new motor body is shorter than the original by about 12mm, there are notes on the parts suppliers indicating that and adapter use is needed to make up for the difference in length of the new motor.
"Effective with 9/1996 production the dimensions of the blower motor have changed. The overall length of the new blower has been shortened. The new blower will not seat properly unless the adapter supplied with the blower is used and the end stop in the blower housing is removed on models prior to 3/1996 production."
The problem is that although the pictures for the suppliers show the adapter piece being included with the blower, it does NOT come with it. We've contact the Dealer and they state to know nothing about the adapter being needed.
I vaguely recall doing the same repair on another car in the past where the adapter came included with the blower.

Does any member know anything about this or is familiar with this spacer/adapter part and knows where I could get one (the part in question is what is encircled in the attached picture)?

Many thanks in advance,
Ivan

Was the blower motor purchased from a MB dealer or is it from a general auto parts store?

I'd push this back to the place that sold the motor and show them the instructions.

Both new blower motors were purchased aftermarket (OEM). Dealer is about twice the cost.
We've researched with other aftermarket suppliers and they all say that although the picture shows that the spacer comes with the blower, it actually does not come included.
Our local MB dealer states that they do not know anything about the blower motor being smaller the the older models, nor they know anything about the bulletin.
Through on-line research I was able to get the bulletin that explains the change on the blower design. This was thanks to another dealer, but they said that they do not have one in stock and could not check if the piece comes included with the blower.
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Seems like there is no MB part numbers for that adaptor piece.
It is looking like I am going to have to fabricate the spacer piece out of Derlin material and see how it goes......

It is an aftermarket part.
Checking with other aftermarket suppliers and the dealer they all say that the adapter part either does not come included with the blower, or they do not know.
Our local dealer says that they do not know anything about it although there is a bulletin for it.
I am going to fabricate the spacer out of delrin material. I had a machine shop get a rectangular piece machine to close dimensions and I'll finish the needed modifications. I'll post a pic when it is done.

hnysfan, try searching for the proper size motor at a salvage yard or online. You are liable to encounter other problems with a homemade spacer.

Were the aftermarket suppliers you contacted parts dealers / resellers or the actual company that makes the motor? I'd push this back to the maker since their catalog states this is the proper motor to use and the instructions state to use the spacer.

Making a spacer isn't going to be a big deal other than taking time.

I need help I have a 1989 260e Mercedes and I accidentally poured a little bit of brake fluid and I power steering compartment how severe is that?

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This should be in a thread of it's own.

Brake fluid will swell rubber not designed for brake fluid exposure. Stop leak in a can contains brake fluid to do just that but I don't recommend it.

If you haven't run the engine, sop as much as you can out with a rag / suction and refill with plain PS fluid.

If you have run the engine, pull the return hose from the pump, cap off the pump side and put the steering gear side in a can. Stop the engine when the fluid slows / stops. Refill and do this again. Reattach the hose, refill, cycle steering to get air out, check fluid level.