Could be an air bubble in there somewhere. Maybe start trying things with just water in the system?
Leave the thermostat out for one and see if it improves.
If not, let it cycle thru a few heat cycles. Bill in
From:
Sent: Monday, March 21, 2016 4:58 PM
To:
Subject: [diesel_mercedes] Water Temp Woes
There was nothing wrong with my engine temps, a rock steady 84C. But, I had this jug of MB Coolant laying around so I thought I would drain and replace the coolant. Well, after locking everything back up - my temps did not stop at 84C, they kept on going to 120+C. I have redrained, replaced the thermostat which did have gunk in it, and I am still hitting 120C. Anyone got any guesses before I start tearing things apart. The radiator is only 2 years old. No problems for several years until I drained the coolant.
brian from laverne
Twin 83 w123 300'ds
Posted by: <corvallis@peoplepc.com>
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