Problem making speaker fit in the dash.

[Benz Dr.]

Anyone else had problems making the speaker fit? Seems it hits against various areas in the dash and will hit the heater controls when they're moved. What did you do as a solution?

[Peter]

you also have the problem when you use the rubber spacers? See picture

[66andBlue]

Hi Dan,
you can buy an installation kit here: https://www.authenticclassics.com/Dash-Speaker-Inst-Hardware-Kit-230SL-250SL-280SL-p/auth-005372.htm
if any of your parts are missing.

[ja17]

The replacement heater controls are slightly different. The grey lever (upper right) originally has one raised protrusion which was ground flat during original manufacturing. The replacement control does not have the raised boss ground flat. As a consequence the raised boss contact the speaker magnet when the control is moved. You can remove the speaker and grind flat the raised boss with a Dremel tool and all should be well. Carefully study the original and the replacement grey heater control to see where to grind. Grinding the heater control prior to installation is easiest, if you are aware of the issue.

[pj]

There's the photo that's referenced in the technical manual
https://www.sl113.org/forums/index.php?action=dlattach;topic=22347.0;attach=36468;image

and how about this one? Does this show the bit that's protruding too much?

[ja17]

Hi pj,

Those look fine. As far as I know only the later soft rubber/plastic heater controls have the problem.  I will try to post some pictures later.

[mrfatboy]

I replaced all my heater controls a couple of years ago. I was able to reuse the original and correct color plastic pieces while only substituting the new black hand knobs from Febi.

A member, Tyler S developed the process here:

https://www.sl113.org/forums/index.php?topic=25935.0


I also remember grinding down one of the new Febi controls to make it fit but I think that was exactly the same time (same day) Tyler came up with the new process and I switched back and kept my original color control.pieces.

I will try to post a picture.

[ja17]

Seems like different suppliers are suppling different shades of the original colors these days. When the colors of the controls are not exactly correct I also re-use the original plastic part of the controls. It adds a lot of time to the job and can be tedious to change the new rubber part of the controls to the original plastic. In addition you must be very careful to keep from cracking the delicate thin plastic, when riveting the rubber parts in place. Removing the old tiny brass rivets also is tedious. I found some nice hollow brass rivets to use, just like the originals, you must be sure to have them flush when installed or they may snag on the metal control frame. If you have the early hard solid plastic controls like pj, you do not have to worry about these problems.