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  #1  
Old 09-09-2010, 08:31 PM
chetwesley's Avatar
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240D radiator question

I just got a new Behr radiator shipped to my house.

Comparing it to the one on the car, it seems identical except that it has two brass fittings on the bottom that are not on the one on the car.

They appear to be open to the inside of the radiator, ie: coolant will come spilling out of them if they are not closed off.



I looked at other parts suppliers and the picture of the radiator is identical elsewhere. Any idea what those are for? Do I just find a cap and some sort of gasket to close them off?

Also, this is a really ignorant question, but what is the thing between the auxiliary fan and the radiator in the front of the car (in front of the radiator if looking from the front of the car)? I had never looked too closely, but always assumed it was a part of the radiator. Now getting the radiator and looking more closely at the car, it appears to be completely separate. I looked through the FSM manual and couldn't find it, but maybe because I don't know what it is called.
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1979 240D w/4 Speed Manual, Light Blue Estimated 225-275K Miles - "Lil' Chugs"
Sold but fondly remembered: 1981 300TD Turbo Tan 235K miles, 1983 300SD Astral Silver 224K miles

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Old 09-09-2010, 08:34 PM
zeke's Avatar
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I need a new radiator, myself and have the same question...parts suppliers all seem to stock the A/T version (the ports you mention are to cool the ATF in the lower portion) Should not be any coolant loss, but I am wondering if it would be better to find a proper M/T version with no ports?

Thing between aux fan and rad is the condenser for your AC
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Current Mercedes
1979 maple yellow 240D 4-speed


Gone and fondly remembered:
1980 orient red 240D 4-speed

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  #3  
Old 09-09-2010, 08:35 PM
79Mercy's Avatar
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Thats the transmission cooler for automatic cars, you dont need to worry about it. No coolant will come out of them, just cap them off.
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1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

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1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

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  #4  
Old 09-09-2010, 08:42 PM
chetwesley's Avatar
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Ah, thanks. Good to know I don't have to worry about it.

79 seems to be a transition time on a couple of things with the 240D, so I always have to be cautious that the part wasn't intended for something on the later/earlier version.

For example, the upper radiator hose I got seems to be incorrect, though I ordered according to my VIN # and the part numbers/vin # references seemed to be the same on more than one supplier (I double checked to make sure I was getting the right thing). Need to send that back and get the right one.

I thought that be the A/C condenser (looks like what is on the back of a refrigerator or in an AC unit), but when I searched google images, I only found images of the compressor.
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1979 240D w/4 Speed Manual, Light Blue Estimated 225-275K Miles - "Lil' Chugs"
Sold but fondly remembered: 1981 300TD Turbo Tan 235K miles, 1983 300SD Astral Silver 224K miles

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  #5  
Old 09-09-2010, 11:28 PM
t walgamuth's Avatar
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Location: Lafayette Indiana
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You really don't have to cap them since the cooling section for the tranny is comparmentalized. Capping them though will keep bugs from building nests in them and someday it will be usable for an automatic if anybody ever wants it.
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual. It still needs upholstery redone...I also have a 427 Cobra replica with an aluminum chassis.
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  #6  
Old 09-10-2010, 03:57 PM
mach0415's Avatar
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No, but this would be one hell of a great WVO heat exchanger! I wish I had a manual trans just so I could do this very thing!
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"Spark plugs?...We don't need no stinking spark plugs!"
1985 300SD "Der Silberne Schlitten" 420,000 mi


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  #7  
Old 09-10-2010, 04:36 PM
moon161's Avatar
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Quote:
Originally Posted by mach0415 View Post
No, but this would be one hell of a great WVO heat exchanger! I wish I had a manual trans just so I could do this very thing!
Bad, would cool VO, same as it would cool ATF.
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  #8  
Old 09-18-2010, 07:14 AM
mach0415's Avatar
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How would it cool the VO? One would have to assume that the VO would be starting out at 180+, when it is starting out from ambient and being heated up, not cooled down. I have not checked the bottom of my radiator with an infrared, but I am pretty sure the bottom is still 180+
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Mark in NC

"Spark plugs?...We don't need no stinking spark plugs!"
1985 300SD "Der Silberne Schlitten" 420,000 mi


Wish these were diesel:
2003 Ford Club Wagon 130,000 mi
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