Temp Gauge High
Thread Starter
Newbie
Joined: Sep 2007
Posts: 14
Likes: 0
From: Ohio
1998 E320 4-matic, 1980 450SLC
Temp Gauge High
I recently replaced my water pump, thermostat housing and thermostat. Lately the temp gauge runs high, around 100C. I have also just started using the A/C on a regular basis, it's cool but not cold. The coolant level is good, condenser fans are running, no unusual noises. Any thoughts on why it's running on the hotter side, it never got above 80C in the past 10 years.
Thread Starter
Newbie
Joined: Sep 2007
Posts: 14
Likes: 0
From: Ohio
1998 E320 4-matic, 1980 450SLC
I'm not sure if the coolant sensor is working properly, how would I know?
This higher temp has only recently been a problem. I replaced the water pump over a month ago. i compared water pumps and the old and new were identical.
This higher temp has only recently been a problem. I replaced the water pump over a month ago. i compared water pumps and the old and new were identical.
Senior Member
Joined: Jun 2009
Posts: 268
Likes: 1
From: Northern Virginia
2006 E320CDI
Was the temp OK after you installed the thermostat and WP? If so, my guess is you got a bad thermostat. Even if it is getting to 100C that should not be a problem especially if the ambient temp is high.
Member
Joined: Sep 2011
Posts: 147
Likes: 0
W210 E300D
I'm not sure if you should be worried, just double check your temperature with Climate Control unit, my gauge also seems to be hovering around 100 mark after switching, although the temperature according to the ACC is ~95*C. Also Mercedes describes normal working range as 95-116*C. It is not that it runs high now, but you were probably running too cold before due to a bad thermostat.
1998, badalready, changed, e320, gauge, gauges, meecedes, mercedes, normal, operating, pump, temp, temperature, thermostat, thermostate, w210, water
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