BMW 5 6 7 Series Engine Auxiliary Radiator (Right – Passenger Side) – Part No. 17117802662 – Restores Cooling System & Fixes Coolant Leaks

Keep your BMW’s cooling system performing at factory levels with this high-quality Engine Auxiliary Radiator designed for the right (passenger) side. This auxiliary radiator provides additional cooling support to the main radiator, helping maintain stable engine temperatures during daily driving, spirited use, or high-load situations.

Over time, auxiliary radiators can develop cracks, internal blockages, or coolant leaks due to heat cycles and road debris. A failing unit often results in coolant loss, overheating warnings, reduced AC efficiency, and unnecessary stress on the engine. Replacing the damaged or aging radiator with this OEM-spec unit restores full cooling efficiency and prevents long-term engine damage.

Manufactured to meet BMW’s strict standards, this radiator ensures proper heat dissipation and integrates seamlessly with your factory cooling system—no modifications required. It is the perfect solution for restoring reliability to aging cooling systems on BMW 5, 6, and 7 Series models.

Key Features

• Direct OEM-style replacement for Part No. 17117802662
• Located on the right (passenger) side
• Restores proper cooling system performance
• Fixes coolant leaks caused by cracked or clogged radiators
• Maintains stable engine temperatures under load
• Durable aluminum and composite construction
• Plug-and-play installation with factory fittings
• Improves long-term engine reliability

FITMENT:

• BMW 5 Series – F10, F11: 528i, 535i, 550i
• BMW 6 Series – F06, F12, F13: 640i, 650i, M6*
• BMW 7 Series – F01, F02: 740i, 750i, 760Li

*Some M models may use variant cooling components—VIN verification recommended.

Compatible with both RWD and xDrive variants.

Please refer to the “Fitment” section in the product description for compatibility details.