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#1
01-31-2009, 11:13 AM
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'82 300D - never warms up
The engine temp on my 300D never warms up; it used to get over 80 and stay there no matter what the outside temps, but now it doesn't even get to 40 regardless of the weather or how long I drive it.
I was thinking the thermostat was stuck open. Any other suggestions?
__________________
- Brian 1989 500SEL Euro 1966 250SE Cabriolet 1958 BMW Isetta 600 
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#3
01-31-2009, 01:08 PM
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One additional question: does the heater work normally? If not, the engine is indeed not getting warm and the thermostat is the first place to look. If the heater works normally, then the engine is probably OK and you should check the temp gauge and its sender.
__________________
 "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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#4
01-31-2009, 03:50 PM
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Well, I asked the question here prior to investigation - low coolant fixed 90% of the issue. I think I'm going to do the thermostat anyways and see if that brings the temp up the last 10%.
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- Brian 1989 500SEL Euro 1966 250SE Cabriolet 1958 BMW Isetta 600
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#5
01-31-2009, 04:39 PM
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Thermastat
Go buy Thermastat with o ring. you will be all set.
__________________
1983 300 D 256K Turbo drain, vacuum pump
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Having poor interior heat availability would be a dead giveaway!
Fortunately, this is an easy fix!
Linear Mode
