Frigiking firewall holes

[450sl]

I need to cut holes through the firewall in order to install a frigiking underdash unit.


Can someone give me the location of both the holes ? any pics?

thanks
Mark

[Shvegel]

https://www.sl113.org/wiki/uploads/Cooling/Air%20Conditioning%20Installation%20Instructions%20for%20Mercedes%20Benz%20280SL.pdf

[450sl]

Thanks , but on this picture the lower hose seems to be located elsewere...

A picture of a bare firewall  would be great.


thanks
Mark

[rbouch8828]

Its behind the expansion tank.

[Shvegel]

If you have the original firewall pad it should have perforations where the holes should be.

[450sl]

Thanks Shvegel ; no : i  have the forum-firewallpad  without the perfo-indicators : do you have a pic of your underdash to Sandenpump hose routing?
Thanks Rbouch8828 ; is the a chance of making a picture of the area behind your expansion tank?


I not sure witch dryer/filter to use  and/or  hose-routing  , because of a possible collision of the lower hose to dryerhousing..

thanks
Mark

[rbouch8828]

My car is with Joe in Blacklick right now. Perhaps Joe could do that for you. Why don't you drop him an email?

[rbouch8828]

I found this picture that I took of the firewall prior to refinishing, that shows the 2 Frigiking hoses. I have marked them with arrows.

[450sl]

Very helpfull thank you very much.