This Rein Engine Coolant Reservoir fits your 2005 2004 BMW 645Ci 4.4L V8 and is perfect for a tune up or performance upgrade. .
This product is ideal for BMW 645Ci owners, specifically those with 2004-2005 models powered by the 4.4L V8 engine, as it addresses the need to replace the coolant reservoir and protect engine belts.
