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Old 10-26-2012, 12:48 PM   #619
Registered User
Join Date: Oct 2012
Location: Cleveland, OH
Posts: 4
My Ride: 325i
M56 vs M54 Radiator

I'm convinced that its time to replace my cooling system on my 2004 325i that now has 75K miles. However, my car is a SULEV with the M56 engine and I'm wondering if the parts shown in the E46 Cooling Guide are applicable to my vehicle. One of the on-line retailers told me there is SULEV specific radiator and that the standard M54 part will not work. However, I haven't been able to find a definitive answer on that. Are there other parts that may be specific to the M56? How do I go about identifying which (if any) parts are unique? Thank you.
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