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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 03-13-2010, 08:27 AM   #1
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Pulled code PO128???

P0128 Range/Performance Problem In Thermostat

Where do i start???

Thermostat/thermo housing and water pump were replace at 62,000........now out 107k
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Old 03-13-2010, 09:29 AM   #2
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Try reseting the code and see if it comes back.
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Old 04-02-2010, 10:00 AM   #3
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did you get it fixed? what did you do?
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Old 04-02-2010, 10:40 AM   #4
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Originally Posted by srtlat View Post
P0128 Range/Performance Problem In Thermostat

Where do i start???

Thermostat/thermo housing and water pump were replace at 62,000........now out 107k
Well, you're almost at the "next 60,000" mark, where one would assume it would fail again. Mine in my 330 failed at about 60,000, and that seems to be the magic mileage numbrer for failuire. As recommended here, reset it, keep and eye on your temp, and if it comes back, replace it (much cheaper than replacing your engine....).
02 M3 Vert | 87 4Runner | 80 280ZX

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Old 04-16-2010, 03:03 AM   #5
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did my thermostat piece of cake, really removed 4 nuts on fan and removed shorwed with fan there she was
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