Hey all, so I got this '83 240d that has the manual climate controls, and there's very little info on them anywhere. Mine is in baaaaaad shape:



I had ordered a new setup but I didn't realize that what everyone seems to be selling are the push button controls (which is what I received yesterday). I've seen it alluded to that it is possible to swap them and change the whole system but that seems like quite a pain, and I've seen others say to keep the manual controls, much less faulty.

Are these units available? Mine's pretty trashed, like really. The knobs are stripped, the internals of the things that the knobs attach to are fubar'd, the plastic brakets are broken, etc.

What's my best course of action here?

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'83 240D 4 spd. manual - Undergoing OM617 transplant - Soon for sale.

'97 Dodge Ram 2500 Cummins 4x4 5-spd. WVO - Not stock. - For sale!

'06 Sprinter

Yes you do have a problem.

Best thing is start hitting the PNP`s for another 240D, and remove the parts.
Left and right control are for the water valve. they connect to a cable.

The center one is for the Blower Motor.

The plastic piece they attach to is fragile, and is riveted to the Heat/AC box.
maybe with a battery operated Dremmel you could grind off the rivet heads.

The knobs just pull off, the nut behind I think is a 22mm or use some needle nose Vice Grips to loosen them.

The face Plate then gently comes off the 3 threaded pieces.

The Switches as I remember you have to slide the to the right or left out of the slots, and they drop back and out of the Fragile piece that is Rivited on.

The right and left switch, rotate the center and the cable will move out to unclip it.

You do have the best type of heater/ac controls, I have a 240D heat/ac box to install in my 85 300D to get rid of the push button controls. repair what you have.

daw-two in his thread he is swapping in a manual CC box.

1984 300D Light Ivory unique car

Was the car this way when you got it?

Where is Woodacre? Socal?

Hope this helps.


Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

My 83 240D climate controls are in perfect order if you want to make an even swap for that annoying 4 speed to a much easier to drive Automatic transmission.

Especially if you will be having to maneuver the clutch pedal with flip flops this will make things alot easier..

** actually since I am way across the country from California, maybe we won't do the trade.

..My controls work fine but not to hijack this thread but I am as of yesterday having an issue with my center Blower motor knob. It just became real difficult to move the thing. Especially from 2 into 3 . I haven't taken it apart yet but back to Charlie, any suggestion why this happens and how to repair.?

Thanks, Austin


...

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'87 924S
'81 280SEL

Sold ->

81 300SD -
93 300E w/ 3.2
85 300D-
79 300SD
82 300CD
83 300CD - CA
87 190E 5 spd
87 Porsche 924S

"..I'll take a simple "C" to "G" and feel brand new about it..."

What parts do you need? I'm in the process of converting my ACC to an all manual system like you have. If you want to read about the "pleasure" I'm having, check out this thread:
1984 300D Light Ivory unique car
I'm grabbing every 240D manual controls that I see. My first donor unit had a stripped out fan switch --- on the front --- the knob would not stay on. Do you have a faceplate?

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daw_two
Germantown, TN

Links:
Sold last car --- 05/2012 1984 300D Light Ivory, Red interior
Cluster Needles Paint
New Old Stock (NOS) parts

Past:
3/2008 1986 300SDL "Coda"
04/2010 1965 190D(c) "Ben"
& many more

HEy Daw;

Is that bead cable ( pg 7 of your restoration) why my blower switch knob is all of a sudden not wanting to turn smoothly? If it is I do not want to snap the thing. Down here in Florida it's been raining everyday for the past month and I have to use the A/C defroster system more than normal...

__________________
'87 924S
'81 280SEL

Sold ->

81 300SD -
93 300E w/ 3.2
85 300D-
79 300SD
82 300CD
83 300CD - CA
87 190E 5 spd
87 Porsche 924S

"..I'll take a simple "C" to "G" and feel brand new about it..."

I do have the faceplate, the problems seem to be that the controls themselves are kinda stripped out, and the knobs are mostly stripped out. Also that the flimsy ass plastic sheet that the three controls mount to is completely broken, that's gonna be the toughest part to replace.

Will this help you situation daw-two?

Woodacre's nor-cal (ish). West marin north of SF.

Was wondering who would notice the flip-flops...

__________________
'83 240D 4 spd. manual - Undergoing OM617 transplant - Soon for sale.

'97 Dodge Ram 2500 Cummins 4x4 5-spd. WVO - Not stock. - For sale!

'06 Sprinter

I wonder is some electrical parts cleaner would clean the switch, or it may just be worn out.

I looked in Pelican, the AZ site, and finally a search on Google for the 240 Blower switch. found then from $31 to $45 on Amazon.

Pelican didn`t show the switch, but when I sourced the MB part# it is shown as a special order for $33.25.

The MB part# 123-820-07-10 and World pack# W0133-1610082.

I found this from the dealer in South Atlanta. and shows an exploded diagram.
I know there is a part# for that fragile front piece but didn`t find it.

Iam wondering if a thin piece of aluminum could be made the same with holes etc... as the plastic piece?

HEATING/AIR-CONDITIONER OPERATING UNIT. Fits: Mercedes | Mercedes-Benz of South Atlanta

Hope this helps.

Charlie

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

Hey Austin. There is a bead cable attached to the blower switch. It controls a flap that is to the left of the blower going. I might have to look at it again to attempt to figure out why it was there. It didn't make any sense to me why there was a flap there. I eliminated the bead cable and the flap.

If your blower switch knob is not wanting to turn smoothly ...... it could be the bead cable. Those things do "gunk" up. We should probably clean and re-lube them at least once every 30 years.

I didn't look at pg 7 of the 1984 Light Ivory thread.






WVOPWRD --- that switch would not help me; the cable bead I had issues with was the FAN switch. I decided to eliminate the cable from the fan switch and get rid of that flap.






Charlie --- Per Dave Morrison's thread, the thin plastic front support must be ordered from Germany. At least, that was the case when he was looking.

__________________
daw_two
Germantown, TN

Links:
Sold last car --- 05/2012 1984 300D Light Ivory, Red interior
Cluster Needles Paint
New Old Stock (NOS) parts

Past:
3/2008 1986 300SDL "Coda"
04/2010 1965 190D(c) "Ben"
& many more

daw-two that piece may still be available, probably not a big run on them.

I had the part number a while back. there was a 240 in the yards and the sticker was still on it with the number. took a picture and had it on my other computer....then it took a dump and lost everything.


Charlie

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

Well......the part number of the front flimsy bracket on a Manual AC system commonly found in a 240D may vary. I have two of them and the numbers are different.

I think 1983 was: 90 412 09 127 and it is broken over near the right side front.
The other one I have is an earlier year because it does not have the circuit board thumbwheel for the AC temperature control. The number is: 90.412.02.27.7

Uploading pics to this post in case the photobucket links break in the future.

Attached Thumbnails

   

__________________
daw_two
Germantown, TN

Links:
Sold last car --- 05/2012 1984 300D Light Ivory, Red interior
Cluster Needles Paint
New Old Stock (NOS) parts

Past:
3/2008 1986 300SDL "Coda"
04/2010 1965 190D(c) "Ben"
& many more

I had to replace the manual heat-AC fan-switch assy in a friend's '84 Euro W123 300D. The attached cable had gotten so stiff that the PO broke the end of the pot-metal shaft that held the fan-knob.
Then the PO tried to fix it and trashed the faceplate, shattered the plastic cups that held the retaining-nuts, and split the 3-hole plastic mounting-panel. So my friend searched eBay and found a complete manual W123 control set, with all the switches, knobs & hardware.
Unfortunately, the 3-hole mounting panel, which is normally part of the heater-AC box, wasn't included with the control-set.

Because the 3-hole panel was only split across one of the holes. I decided to try repairs without pulling the center-console. I was able to pry the split panel out just far enough to replace the switch. While I was in there, I disconnected the cable at the bead-coupling and where it attached to a lever behind the glovebox. Then I squirted some ATF in the cable-ends and worked it back & forth by hand until it unstuck. When I installed and tightened-down the replacement faceplate, it pinned the split panel back together.

Still, for me this was long tedious job.
Depending on how badly yours is damaged, it may be better to just remove the center console first.

Happy Motoring, Mark

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DrDKW