BMW E36 Radiator Cap 140 Degrees - BMW 17137639023 Bmw E65 R

BMW E65 Radiator (Expansion Tank) Cap - 200

MAHLE CRB22000S | 2.0 Bar Pressure Valve | Original Equipment Manufacturer (OEM)

This is a radiator water tank cap produced for the cooling system of the flagship BMW 7 Series E65 / E66 (2001-2008) vehicles, made by BMW's original equipment manufacturer MAHLE (Behr). The massive engines of the E65, which operate under electronic control at very high temperatures (105°C - 110°C), require flawless and stable pressure in the cooling system. This part is not just an ordinary cap; it is a highly precise 2.0 Bar (200) pressure adjustment valve that prevents the massive engine from overheating. An old cap with a broken spring valve or a crushed gasket can cause the water to boil prematurely, leading to evaporation and a constant low water warning on the iDrive screen. Secure your "official vehicle" with MAHLE quality.

• OEM Quality (MAHLE/Behr): MAHLE, the world's largest thermal management and cooling system manufacturer, is the brand that produces parts directly for BMW assembly lines. Unlike cheap counterparts from China, the valve calibration is flawless and does not jeopardize expensive N62/N73 engines.
• Critical 2.0 Bar (200) Valve: When the pressure exceeds 2.0 bar, it releases excess air to prevent the system from bursting at a weak point (sensitive water tank or hoses), and when the pressure drops, it reseals the system to prevent the water from boiling.
• Sealed Viton Gasket: Thanks to its special lower gasket resistant to the intense heat under the E65's hood, it perfectly seals the radiator tank's mouth; this effectively prevents hidden water loss through evaporation.
• Solution for Swollen Hoses: If the massive radiator hoses of your vehicle swell like rocks when the engine heats up, it means the drain valve of your old cap is clogged. This original cap system provides immediate relief.

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