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  #1  
Old 04-06-2009, 08:48 PM
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radiator fliud rusty

any ideas on how to get my radiator fluid looking like normal? I ran water through it for several hours with the bottom plug almost off and it still is rusty after I put new antifreeze in it. I have a 1982 240 D
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  #2  
Old 04-06-2009, 09:00 PM
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Per the Factory Service manual, you would want to do a 'citric acid flush'. Its a pain, and a full day job.

Be warned though, with things that rusty, when you do the flush you may spring a leak in the radiator. Be ready to have the vehicle down for a few days and you credit card in hand :-)

dd
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'85 300D, 'Lance',250k, ... winter beater (100k on franken-Frybrid 3 Valve Kit)
'82 300D, 'Tex', 228k body / 170k engine ... summer car
'83 300TD Cali Wagon 210k, wife's car
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  #3  
Old 04-06-2009, 09:10 PM
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Quote:
Originally Posted by kessler1492 View Post
any ideas on how to get my radiator fluid looking like normal? I ran water through it for several hours with the bottom plug almost off and it still is rusty after I put new antifreeze in it. I have a 1982 240 D
I just re-read your post. Why didnt you take the block plug totally out? you definitely want to have that out or there is no way you can flush completely.

dd
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'85 300D, 'Lance',250k, ... winter beater (100k on franken-Frybrid 3 Valve Kit)
'82 300D, 'Tex', 228k body / 170k engine ... summer car
'83 300TD Cali Wagon 210k, wife's car
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  #4  
Old 04-06-2009, 10:01 PM
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citrus flush @ diesel giant is needed
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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)
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  #5  
Old 04-07-2009, 05:05 PM
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Thanks,
I'll wait until I get paid then tackle it sounds like I might need the extra cash.
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