Thread: M54 Thermostats- Current Recommendations?
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Old 07-05-2026, 02:53 PM
X5chemist X5chemist is offline
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Join Date: Jun 2021
Location: Austin, TX
Posts: 2,307
X5chemist will become famous soon enough
Mine has 25+k miles on a Mahle/Clevite TM1397. Installed 3/4/22. It runs good in Austin's hot summers.
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'06 X5 3.0i - bought @143,123 miles (12/26/20)
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