This BMW 525i 528i 530i 535i 545i 550i 645i E60 E61 Radiator Coolant Reservoir is a direct replacement for your vehicle's engine cooling system. It is designed to fit perfectly and comes with a bolt-on mounting style. The coolant bottle is made of high-quality plastic material and is suitable for use in all BMW 5 Series AWD RWD 3.0L 6 CYLINDER models. The radiator coolant reservoir is a vital component of your vehicle's engine cooling system, and this one is built to last. It is compatible with various BMW models, and its placement on the engine compartment ensures optimal performance. Get your engine running smoothly again with this reliable and durable radiator coolant reservoir. No crack Good used water bottle radiator reservoir removed from 2009 BMW 535i Comes with cap but no warranty on cap Selling exactly as removed from wrecked vehicle