Author Topic: Removing left ventilation duct  (Read 2248 times)

WRe

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Removing left ventilation duct
« on: May 09, 2022, 13:56:30 »
Hi,
has anyone ever removed the left ventilation duct (behind tacho/speedo) to the windshield and can give tips on what needs to be removed to get to it?
...WRe

66andBlue

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Re: Removing left ventilation duct
« Reply #1 on: May 09, 2022, 18:06:32 »
Hi Wolfgang.
I have done it twice (1966 230SL and 1968 280SL) but only while dismantling everything under the dash. The ventilation duct (or "defroster nozzle" in the parts book) is fixed to the distributor box below with two hex bolts. Access to the one on the right is difficult.  When the radio is out you do have access to it as you can see in the photo. The bolt on the left can be reached from under the dash - after removing the panels and most of the electrical connections. I am pretty sure it requires removal of the distributor box.  It is a major operation! Hope the pictures give you an idea of what is involved. Good luck!
Alfred
1964 230SL manual 4-speed 568H signal red
1966 230SL automatic 334G light blue (sold)
1968 280SL automatic (now 904G midnight blue)

WRe

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Re: Removing left ventilation duct
« Reply #2 on: May 09, 2022, 19:13:38 »
Hi Alfred,
thanks for your tips! I'm currently in the process of restoring the entire heating/ventilation system. The heatrer coer, blower and distribution box are already outside, but I can't get the left nozzle out because the pedal bracket  is in the way. Apparently it has to go out too, which I would like to avoid, but I don't see any other possibilty.
...Wolfgang

66andBlue

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Re: Removing left ventilation duct
« Reply #3 on: May 09, 2022, 20:10:36 »
Wolfgang,
all I can say is that I never had the pedals out in my cars. Both are automatics not stick shift, can that be the difference?
I did slide the left nozzle out to the right, behind the windshield wiper linkage, with the right nozzle also out of the way. Perhaps I have more photos, I'll look.
Alfred
1964 230SL manual 4-speed 568H signal red
1966 230SL automatic 334G light blue (sold)
1968 280SL automatic (now 904G midnight blue)

dirkbalter

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Re: Removing left ventilation duct
« Reply #4 on: May 10, 2022, 00:28:01 »
I recently assembled the duct also, coming from right side, with the distribution box out.
Not sure if it is absolutely necessary but I had to push the wiper linkage all the way forward to be able to move the duct in. Pedals (auto) in place.
Dirk
66 230 SL
70 280 SEL
53 CHEVY 3100
18 C300 COUPE
05 HD FLSTNI

yves

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Re: Removing left ventilation duct
« Reply #5 on: May 10, 2022, 06:41:04 »
I did that also without removing the pedals
Happy owner of a 69 blue 280SL ,  63 FHC  osb E-type , 55 FHC XK 140 to be restored...

WRe

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Re: Removing left ventilation duct
« Reply #6 on: May 10, 2022, 16:25:43 »
Hi,
I tried again today to remove the left ventilation duct, unfortunately without success, although both the air distribution and blower box and the tachometer were outside. You can only move the channel a little and you can't get past the wiper linkage and the pedal bracket.
So he stays in!
...WRe


dirkbalter

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Re: Removing left ventilation duct
« Reply #7 on: May 11, 2022, 02:29:56 »
Don't give up  ;D
Dirk
66 230 SL
70 280 SEL
53 CHEVY 3100
18 C300 COUPE
05 HD FLSTNI

WRe

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Re: Removing left ventilation duct
« Reply #8 on: May 11, 2022, 16:23:17 »
Hi,
I tried and checked it again with an inspection camera also and had no progress. I really want to get it out but had no success.
Considering the fact that you hardly need the heating and the ventilation almost never, I considered the topic closed for me. It's a shame because I removed all the other components and restored them but I wanted to stop riding the dead horse.
Thanks for your support!
...WRe

WRe

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Re: Removing left ventilation duct
« Reply #9 on: May 12, 2022, 11:17:39 »
Hi,
I don't want to deprive you of a solution from Pagodentreff:

"Renewing the left air duct is also possible without removing the bracket of the pedal system.
I'm removing the tachometer, station wagon, speedometer, speaker and heater control panel.
Simply crumble the old air duct by hand and vacuum it off...the new plastic duct...then put it in the oven or in the sun...it has to become so soft....that it can be twisted...then with push the air duct over the pedal block with a bit of force and twist it a bit....nothing will break..the air duct can take it well."

...WRe

dirkbalter

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Re: Removing left ventilation duct
« Reply #10 on: May 12, 2022, 14:38:55 »
Lol, I saw that too.
Dirk
66 230 SL
70 280 SEL
53 CHEVY 3100
18 C300 COUPE
05 HD FLSTNI