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Old Yesterday, 11:30 PM   #1
323i jlviii
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Question Thermostat Pictures Old vs New

Hey there, Been doing some projects. Taking photos too just in case I need to see where something was.

Took this picture of the old one of the left, and the new one on the right. Just by chance, I think you can see the "soft" partially opened old one, verses the completely (closed) position new one right.

Never saw this before and wondered when you guys were talking about a "soft" stat - well, this picture tells the story. Right ??

If you notice the brass shaft on each you can notice the one is closed, where the other is not.

Plus the old one has no numbers anywhere??? Play it forward,
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Old Yesterday, 11:38 PM   #2
Stinger9
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And your new one had a number stamped on it?
Last stat I put into my car had a 97 degrees stamped into the metal. Runs around 95 degrees on the OBC hidden function.
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Old Today, 12:44 AM   #3
323i jlviii
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Thumbs Up pictures for comparison

Yes, same as yours. The part I thought was something was the old thermostat. I never considered it being bad; yet there it was - somewhat closed compared to the new one. This was the bimmer that I thought the headgasket was bad because of the blue/white smoke it started pouring out. Here it was the CCV valve and mayo build up BECAUSE of the engine not getting up to temp.

Still going to use the Marvel Mystery oil in the winter, i think it will help all the mayo issues the cold brings on each winter. Meanwhile, I hope I can get this all back together with no engine lights or codes.
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Old Today, 01:35 AM   #4
Stinger9
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Quote:
Originally Posted by 323i jlviii View Post

Still going to use the Marvel Mystery oil in the winter, i think it will help all the mayo issues the cold brings on each winter. Meanwhile, I hope I can get this all back together with no engine lights or codes.
Good Luck

With a proper stat and working CVV and not lots of short trips you should avoid oil problems without additives.
General advice should be to check your stat regularly looking for decreasing temp. Mine was running toward cold, so I changed it to keep running hot and keep my top end clean like pictured.
Hey I see you're in Utah. Salt Lake area? See pic in my garage of my car in escalente area (12).
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Old Today, 05:57 AM   #5
Solidjake
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Interesting to see the difference, thanks for posting it up. What brand did you get?
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Old Today, 08:05 AM   #6
tommy d
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FYI: I have a new Wahler Stat in the box and mine looks like your old one on the left.
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Old Today, 04:01 PM   #7
Stinger9
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Originally Posted by tommy d View Post
FYI: I have a new Wahler Stat in the box and mine looks like your old one on the left.
Yeah, only way to know for sure is to use OBC hidden functions.
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Old Today, 06:39 PM   #8
invisible man
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Don't modern thermostats fail in the open position? Which means you're simply looking at a failed used one versus a good new one.
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