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#1
06-12-2009, 10:38 AM
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Radiator replacement?
How difficult is it to replace the radiator in a 300TD? I've never done that before, but may need to do it.
Would you attempt to use a salvaged one or just buy a new one?
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" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century  OBK #55 1998 Lincoln Continental - Sold Max 1984 300TD 285,000 miles - Sold The Dee8gonator 1987 560SEC 196,000 miles - Sold Orgasmatron - 2006 CLS500 90,000 miles 2002 C320 Wagon 122,000 miles 2016 AMG GTS 12,000 miles 
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#2
06-12-2009, 10:44 AM
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Buy a new one.
They are not too bad to remove. I remove the fan and shroud. Disconnect all the hoses and tranny lines. Plug the tranny lines to avoid losing too muh tranny fluid. Remove the radiator hold downs, and it lifts right out.
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K 90 Dodge D250 5.9 Cummins/5 speed. 400K Gone and still missed...1982 w123 300D, 1991 w124 300D
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#3
06-12-2009, 11:52 AM
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I've used a radiator once from a junkyard only because I could tell it was not the original (nissens not Behr) and it looked to be in excellent shape, almost new. Only cost me $40 and it's been working great for 4 years on my dad's car. If I could not find one like that I would not mess with anything from the junkyard. Brand new they are much more expensive, but well worth it as they wil last. Very easy to replace as well. With the coolant drained you could easily have the old one out and the new one in and connected in 15 minutes. Just pay attention to how the oil cooler fits onto the radiator....
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1983 300SD White with Grey interior
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#4
06-12-2009, 03:16 PM
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Forgot about the oil cooler, sorry. Those clips can be a PITA to get back on.
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K 90 Dodge D250 5.9 Cummins/5 speed. 400K Gone and still missed...1982 w123 300D, 1991 w124 300D Last edited by rrgrassi; 06-12-2009 at 03:22 PM.
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#5
06-12-2009, 03:18 PM
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If you plan to keep the car for a long time get a new one. If not, a good used one is always around. You just have to have enough time to scour the sources...
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http://farm8.staticflickr.com/7271/7...144c3fc1dc.jpg
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#6
06-12-2009, 08:01 PM
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Quote:
It's straightforward - I don't even remove the fan shroud. Just be sure you keep track of the clips and rubber thingys under the clips. Also remember unbolt the oil cooler...two bolts, one top and one bottom, on the drivers side.
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1984 300D: 275,000 miles (soon to be for sale) In search of my 1987 300D in anything but white.
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#7
06-13-2009, 09:31 AM
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So the only things to disconnect from it are the upper and lower hoses and the tranny lines? That sounds doable.
__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century OBK #55 1998 Lincoln Continental - Sold Max 1984 300TD 285,000 miles - Sold The Dee8gonator 1987 560SEC 196,000 miles - Sold Orgasmatron - 2006 CLS500 90,000 miles 2002 C320 Wagon 122,000 miles 2016 AMG GTS 12,000 miles
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#8
06-13-2009, 12:23 PM
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If you get one from a junkyard, look for one that has a metal reinforcement inside the top outlet. The plastic pipe has been known to crack or even break off; the metal reinforcement was added in a later version of the design and all new replacements should have it.
__________________
 "Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970
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#9
06-13-2009, 01:56 PM
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Quote:
Yes. But be careful when loosening the oil/tranny cooler lines. You can easily strip them. I've removed radiators from junkyards and installed on my cars. That is how I learn the basics... You do not need to remove the fan. Just the shroud. Securing the oil cooler bractet is a PITA unless you are anal .
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1987 300SDL 314K mi, counting; #22 Head  1999 E300Turbo 405K original miles 1997 E320 180K mi (Son's) 2002 ML320 (Son's) 1998 S320 140K mi (Son's) sold 1985 300SD 311K mi 1984 300D 324K mi (killed by a hit-n-run turd) *************************************
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#11
06-13-2009, 10:34 PM
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search
do an archive search for details.
I posted some detail when I replaced mine. 
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1979 300D 220 K miles 1995 C280 109 K miles 1992 Cadillac Eldorado Touring Coupe 57K miles SOLD ******************** 1979 240D 140Kmiles (bought for parents) *SOLD.SAN FRANCISCO/(*San Diego) 1989 300SE 148 K miles *SOLD
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#12
06-13-2009, 10:48 PM
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Quote:
Here have a look>>>>> http://benzguy.piczo.com/engineradiatorreplacement123,126?cr=7&linkvar=000044 Cheers Big Dan Vancouver Canada
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Cheers Big Dan MEng Visit my Blog.. http://allformercedesbenz.blogspot.com/ www.benzguy.piczo.com If at first you don't succeed, Skydiving is not for you.  ARTIFICIAL INTELLIGENCE IS NO MATCH FOR NATURAL STUPIDITY. If anything can go wrong,fix it! The hell with Murphy!! I never think of the future.It comes soon enough.
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#13
08-20-2009, 09:39 AM
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Big Dan, thanks for the pics. I have a '79 450SL and I think all the principles are the same, with some minor differences (2 rad clips instead of 4, fan shroud screwed on), and I'm not sure about the bolts for the oil cooler...but I'll go have a look at that.
But going back a few steps, can anyone give me an idea as to how to confirm the radiator is in fact shot? I came into my garage to a giant pool of coolant on the ground, and an inspection of the lower hoses did not reveal any gaping cracks in them. Coolant seems to be accumulating on the bottom rame of the radiator, but I can see clearly if its coming out of the fins. What's the best way to spot the leak location? I'm thinking refill it, cap it, and start it up, to see if I get coolant spraying out....any other ideas? I'm really a novice at this, but the discussion and photos are boosting my confidence in being able to do this. Thanks much. Stu
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#14
08-20-2009, 09:40 AM
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Important -I meant to say "I CAN'T see if it's coming out of the fins".
Sorry....
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