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#1
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1984 500SE gets hot when sitting in traffic
Hey all,
I post more frequently over on BenzWorld, but I figured I'd look here for some advice too. Lately, my 500SE will start warming up past 85-90C (where it usually is) when I'm sitting at a long stoplight or in bumper-to-bumper traffic. Looking for suggestions as to what I should check when I get back home. Fans seem to be fine, and thermostat as well, but I'll verify that once I get back to San Antonio. Thanks!
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1984 500SE 1985 190E 2.3-16 1997 Jeep Wrangler 1998 Dodge Durango SLT 5.9 1951 170S 1996 Ford F350 7.3 ZF5 swap |
#2
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Usual suspects would be fan clutch or clean system with citrus flush.
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85 300 SD ~ 115K 82 500 SEC Euro ??K 78 450SL 164K |
#3
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Fanatic, how did you determine that the thermostat is fine? That is the first, and least expensive, part to suspect as the root cause. It may not be opening completely which causes the engine temperature to rise when the car is stopped for extended periods.
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Fred Hoelzle |
#4
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IF your engine overheats only is slow traffic and not with higher speeds it is not the thermostat.
Check the fan clutch first, most likely it is not working properly. It is also possible that your radiator is worn, with a limited cooling capacity much more airflow is necessary for cooling. This leads combined with a older fan clutch to overheating at low speeds, Modern radiators loose much of their cooling capacity after 5 years Rob |
#5
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I'll check the clutch and the radiator.
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1984 500SE 1985 190E 2.3-16 1997 Jeep Wrangler 1998 Dodge Durango SLT 5.9 1951 170S 1996 Ford F350 7.3 ZF5 swap |
#6
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radiator efficency
Is there more informtion on that ?
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