190E running a bit hot at idle/slow speed - oil wt?
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Joined: Apr 2009
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2007 ML 350 - VIN 4JGBB86E17A211020
190E running a bit hot at idle/slow speed - oil wt?
Hi Mb World patrons... just wanted to check in on one item for my 1991 190E with 209K miles
A few months ago I had the water pump & thermostat replaced as it was leaking. Even with this replacement when the weather gets warm as it did in Ohio this past week the 190 gets upwards of 100C when sitting still for a while.
I was told to run a very light weight oil to help quickly lube the cam towers at start up, especially during the cold Ohio winters.
At idle I noticed my oil pressure gets really low, almost to zero. Its been 2K since I changed the oil and do this on a regular basis around 2.5K-3K miles.
I wonder if I should go to a heavier or perhaps synthentic oil as I think some of heat could be related to this factor.
It could also be the radiator needs cleaned out so any steer there welcome!
A few months ago I had the water pump & thermostat replaced as it was leaking. Even with this replacement when the weather gets warm as it did in Ohio this past week the 190 gets upwards of 100C when sitting still for a while.
I was told to run a very light weight oil to help quickly lube the cam towers at start up, especially during the cold Ohio winters.
At idle I noticed my oil pressure gets really low, almost to zero. Its been 2K since I changed the oil and do this on a regular basis around 2.5K-3K miles.
I wonder if I should go to a heavier or perhaps synthentic oil as I think some of heat could be related to this factor.
It could also be the radiator needs cleaned out so any steer there welcome!
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Joined: Apr 2009
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2007 ML 350 - VIN 4JGBB86E17A211020
The fan will come on...
Greetings Gullwing...the fan does come on when it gets hot...
I just find it unusual that it heats up to 100C sitting still...its either the fluid flow can't keep up with the heat or there is too much heat being generated somehow.
Only has started to happen in the last 5 years...
I just find it unusual that it heats up to 100C sitting still...its either the fluid flow can't keep up with the heat or there is too much heat being generated somehow.
Only has started to happen in the last 5 years...
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ml320
Greetings Gullwing...the fan does come on when it gets hot...
I just find it unusual that it heats up to 100C sitting still...its either the fluid flow can't keep up with the heat or there is too much heat being generated somehow.
Only has started to happen in the last 5 years...
I just find it unusual that it heats up to 100C sitting still...its either the fluid flow can't keep up with the heat or there is too much heat being generated somehow.
Only has started to happen in the last 5 years...
I live with it
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Joined: Apr 2009
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2007 ML 350 - VIN 4JGBB86E17A211020
Hi Doug11...thanks for the response...I have replaced the water pump, thermostat and a few hoses so I think the culprit its likely the 20+ year old radiator that has seen its share of Atlanta heat and Ohio cold.
I'll make another post asking about radiator flush treatments...
I'll make another post asking about radiator flush treatments...
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Joined: Apr 2009
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2007 ML 350 - VIN 4JGBB86E17A211020
Peak radiator flush did the trick!
Followed the instructions and ran it with the cleaner/flush for a week. Runs MUCH cooler than before, even at prolonged idle in traffic...
