Aluminum Coolant Reservoir Tank with Cap & Sensor for 16 17 18 19 20 BMW G12 G14 G15 G16 G30 G32, Compatible with 530i 530e 540i 740i 740e 745e xDrive, Replaces OEM 17138610656 17138742975 17139487210

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• This aluminum coolant expansion tank is specifically engineered to match the original OEM specifications for 2016-2020 BMW models. It comes with a pre-installed level sensor and cap, ensuring a direct, hassle-free replacement without modification. Replaces part numbers: 17138610656, 17138742975, 17139487210.
• The built-in level sensor continuously monitors coolant volume and alerts you via the dashboard warning light if levels drop below safe limits. This critical feature helps prevent engine overheating and potential damage, ensuring your BMW runs safely.
• Crafted from high-grade aluminum alloy, this coolant reservoir is engineered for exceptional strength and longevity, directly addressing the common failure points of plastic OEM units. Its robust construction effectively withstands engine heat cycles and vibration, significantly reducing the risk of cracks and leaks over time for dependable, long-term performance.
• Each coolant reservoir is subjected to industry-standard pressure and leak testing prior to shipment, ensuring optimal performance. Supported by a 60-month warranty and responsive customer service, this part provides a dependable, high-quality alternative to OEM at a competitive price, offering exceptional long-term value.
• This reservoir is a true plug-and-play solution, engineered for a perfect, no-modification fit. The installation process is refreshingly simple: just disconnect the hoses, swap the tank, and reconnect. With these clear steps, even beginners can confidently complete the job in minutes, turning potential labor costs into personal savings.