This VAG Coolant Temperature Sender Unit (part code 701919369E) is a critical component for maintaining your vehicle's engine health. It accurately measures the engine's coolant temperature and transmits this vital information to the engine control unit (ECU). The ECU uses this data to adjust fuel injection timing, ignition timing, and cooling fan operation, ensuring the engine runs efficiently and at its optimal operating temperature. A faulty sender unit can lead to poor fuel economy, rough idling, engine overheating, or the illumination of the check engine light. Crafted to VAG's stringent quality standards, this sender unit is designed for a direct fit and reliable, long-lasting performance. Replacing a worn or malfunctioning sender unit with this genuine VAG part will help restore your vehicle's performance and prevent potential engine damage.
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