Thread: Behr vs Wahler
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Old 01-04-2014, 02:05 AM
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Gregory891 Gregory891 is offline
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Been doing BMW's since the early 80's, BMW has used Behr & Wahler as thermostat OEM's - depends on the car / engine. Either would be brands I have and would use.

If your car takes a rather long time to warm up (gauge, not to make heat inside), it could be the thermostat. Cheap & easy enough to replace, even if it's NOT the case - you haven't spent signficant money and you've proactively replaced something that is of value.

Codes would only be if the late warm up causes an issue with the emissions control or similar.

If the car takes a VERY long time to start making heat - this could indicate a potential issue with the electric heater valve.
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