BMW E46 320i Expansion Tank | Radiator Coolant Bottle 1998–2000

Key Features (Bullet Points)

• Vehicle Compatibility – Designed for BMW 328i models (1998–2000) with M52B28 engine
• Cooling System Support – Maintains proper coolant expansion and reservoir function for efficient engine temperature control
• Cost-Effective Replacement – Economical aftermarket alternative without compromising essential performance
• Durable Construction – Manufactured from quality materials for long-lasting reliability
• Direct Replacement Fit – Designed for easy installation using existing components

Product Description

This coolant expansion tank, also known as a radiator overflow bottle or water reservoir, is designed for BMW 328i models (1998–2000) equipped with the M52B28 engine.

It plays an essential role in the cooling system by allowing coolant to expand and contract, helping maintain proper system pressure and engine temperature. Manufactured as an economical aftermarket replacement, this expansion tank provides dependable performance and accurate fitment.

Please note that this unit does not include a radiator cap. It is designed to be used with your existing cap, although replacing the cap during installation is recommended for optimal system performance.

Specifications

• Product Type: Coolant Expansion Tank / Radiator Bottle
• Vehicle Compatibility: BMW 328i (1998–2000)
• Engine Code: M52B28
• Cap Included: No
• Condition: New

What’s in the Box

• 1 × Expansion Tank

Disclaimer

Please verify compatibility with your vehicle’s make, model, engine type, and production year before purchasing. This product does not include a radiator cap and requires reuse of the existing cap or a compatible replacement. Professional installation is recommended. The manufacturer and seller are not responsible for any damage or issues resulting from improper installation, misuse, or incorrect fitment.