Radiator Bottle Compatible with BMW 3-Series (With Side Connection)

The Radiator Bottle Compatible with BMW 3-Series (With Side Connection) is a practical replacement cooling-system component designed for compatible BMW 3-Series applications requiring a reservoir with a side connection. Also known as a coolant expansion or recovery reservoir, the radiator bottle provides an important storage point for engine coolant and accommodates normal changes in coolant volume as the engine heats up and cools down. Over time, repeated exposure to engine heat, temperature changes, vibration, and general vehicle use can cause the original plastic reservoir to become brittle, cracked, or damaged. Replacing a deteriorated bottle can help restore reliable coolant containment and reduce the risk of coolant loss. This replacement provides a practical solution for vehicle owners, mechanics, workshops, and DIY maintenance projects.

Replaces OEM part numbers 17137787039, 17111436413, 17117573781, 17132247553

Compatible with BMW 3-Series: Designed for compatible BMW 3-Series applications, this radiator bottle provides a practical replacement for a damaged, cracked, leaking, or ageing coolant reservoir. The specific vehicle and engine application should be confirmed before installation to ensure the replacement matches the original bottle's shape, mounting points, hose connections, side connection, and overall cooling-system configuration.

With Side Connection Design: This radiator bottle is specifically supplied with a side connection, making it suitable for compatible BMW 3-Series cooling systems that require the corresponding reservoir configuration. Matching the connection arrangement to the original bottle is important for proper installation, so the existing reservoir and product image should be compared carefully before ordering.

Replaces Multiple OEM Part Numbers: This radiator bottle replaces OEM part numbers 17137787039, 17111436413, 17117573781, and 17132247553, providing useful references when identifying the correct replacement component. Checking the applicable OEM number against the original reservoir or vehicle records can help confirm suitability before purchase.

Helps Maintain Proper Coolant Storage: The radiator bottle forms part of the vehicle's cooling system by providing a reservoir for engine coolant and accommodating normal changes in coolant volume as engine temperatures rise and fall. A properly functioning reservoir helps keep coolant contained within the cooling system and supports the intended operation of the cooling circuit during normal vehicle use.

Ideal for Replacing Cracked or Leaking Reservoirs: Coolant reservoirs can deteriorate over time due to repeated exposure to engine heat, temperature changes, vibration, and general operating conditions. Plastic can become brittle and develop cracks, splits, or leaks that may result in coolant loss. Replacing the affected bottle provides a practical solution for restoring a secure coolant storage point and addressing deterioration of the original component.

Practical Solution for Cooling-System Repairs: This radiator bottle is suitable for vehicle owners, mechanics, workshops, and DIY maintenance projects where the existing coolant reservoir needs replacement. It can be used during cooling-system repairs, preventative maintenance, vehicle refurbishment, or restoration work. Replacing the damaged bottle provides a practical way to address the affected component without unnecessarily replacing unrelated cooling-system parts.

Helps Reduce Coolant Loss: A cracked or leaking reservoir can allow coolant to escape and may contribute to a low coolant level. Replacing the damaged bottle helps provide secure coolant containment and can reduce the risk of continued leakage from the reservoir itself. During installation, the connected hoses, cap, side connection, fittings, and surrounding cooling-system components should also be inspected for signs of wear, damage, or additional leaks.

The Radiator Bottle Compatible with BMW 3-Series (With Side Connection) combines vehicle compatibility, side-connection design, multiple OEM replacement references, and practical coolant storage functionality. It provides a useful replacement solution for cracked, leaking, damaged, or ageing coolant reservoirs on compatible BMW 3-Series applications.

Please refer to the image to ensure suitability.

What's in the box
1 x Radiator Bottle