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#1
12-30-2006, 12:01 AM
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acceptable in traffic temperature
hi. my 84 300d turbo runs around 100c all of the time, traffic, highway etc. it will push 110 sitting in traffic on a hot afternoon. is this too hot for the 300D? I have checked the fans and both function, coolant is topped off...
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 1982 300CD Turbo (Otis, "ups & downs") parts for sale 2003 TJ with Hemi (to go anywhere, quickly) sold 2001 Excursion Powerstroke (to go dependably) 1970 Mustang 428SCJ (to go fast) 1962 Corvette LS1 (to go in style) 2001 Schwinn Grape Krate 10spd (if all else fails) 
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#2
12-30-2006, 12:25 AM
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That's a bit hot.
A properly operating system should hold steady at around 80 C.
__________________
Joe ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1980 300SD - 495k miles - 'The Ambassador' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Former Family Members 95 C280 73 280SEL 90 300D 87 300SDL (X2) 86 560SEL 84 300D 80 300SD
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#3
12-30-2006, 12:34 AM
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Yes, too hot. It should be around 82*c and not go above 100*c.
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#4
12-30-2006, 12:38 AM
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Check fluid level, which I'm sure you have, and pop in a new thermostat first. One of the easiest cars to replace a thermostat on I've ever experienced.
Report back.
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Jimmy L. '05 Acura TL 6MT  2001 ML430 My Spare Gone: '95 E300 188K "Batmobile" Texas Unfriendly Black '85 300TD 235K "The Wagon" Texas Friendly White '80 240D 154K "China"  Scar engine installed'81 300TD 240K "Smash" '80 240D 230K "The Squash" '81 240D 293K"Scar" Rear ended harder than Elton John
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#5
12-30-2006, 01:42 AM
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If the thermostat doesn't help, its radiator time. When I replaced mine the temps fell 10C and have stayed at a solid 80-82C no matter the outside temp or driving conditions.
Note: I never touched my thermostat, it was the filthy original radiator that caused the overheating.
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-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) Last edited by pawoSD; 12-30-2006 at 01:49 AM.
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#6
12-30-2006, 09:29 AM
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Quote:
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#7
12-30-2006, 09:44 AM
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I wish my issues were as simple as a radiator.
With a brand new thermostat, the results are unchanged............the engine will typically run 95-99C. under decent loads. The infrared gun verifies that the output water from the thermostat is at 82C., but the cylinder head at #2 and #3 is right about 90C. The engine temperature is unrelated to ambient..........doesn't matter whether it's 100F. or 40F. It's strictly load related. I'm thinking that the sending unit........close to #3.........is reading the higher temps. generated by these two cylinders.
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#8
12-30-2006, 01:48 AM
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Quote:
 It's running 60  The 300D was a piece of cake though!
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http://farm8.staticflickr.com/7271/7...144c3fc1dc.jpg
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#9
12-30-2006, 01:29 PM
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Quote:
is the thermostat an Autozone piece or will I have to go to a MB part source?
__________________
1982 300CD Turbo (Otis, "ups & downs") parts for sale 2003 TJ with Hemi (to go anywhere, quickly) sold 2001 Excursion Powerstroke (to go dependably) 1970 Mustang 428SCJ (to go fast) 1962 Corvette LS1 (to go in style) 2001 Schwinn Grape Krate 10spd (if all else fails)
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#10
12-30-2006, 01:50 PM
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Phil's got what you need right here.
http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1Z90027811ZA0TLH6X&year=1984&make=MB&model=300-DT-001&category=G&part=Thermostat
__________________
Joe ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1980 300SD - 495k miles - 'The Ambassador' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Former Family Members 95 C280 73 280SEL 90 300D 87 300SDL (X2) 86 560SEL 84 300D 80 300SD
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#11
12-30-2006, 02:01 PM
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Quote:
ok, but I was wondering if I could get it locally so i can do it this weekend
__________________
1982 300CD Turbo (Otis, "ups & downs") parts for sale 2003 TJ with Hemi (to go anywhere, quickly) sold 2001 Excursion Powerstroke (to go dependably) 1970 Mustang 428SCJ (to go fast) 1962 Corvette LS1 (to go in style) 2001 Schwinn Grape Krate 10spd (if all else fails)
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