BMW F30 F10 F25 N20 X1 X3 Electric Engine Water Pump 11517597181 - Used Original Parts

Diagnosis and Common Symptoms

The electric water pump on the N20 engine is a known critical failure point that usually surfaces between 80,000 to 120,000 kilometers. When these units begin to fail, the DME (Engine Control Module) will typically trigger fault codes 20A701 (coolant pump, speed deviation) or 20A804 (coolant pump, power-reduced operation). Drivers will often notice the radiator fan running at maximum speed—sounding like a jet engine—immediately upon startup or while idling. Other symptoms include a yellow or red engine temperature warning on the iDrive display, followed by the vehicle entering "Limp Mode" to protect the cylinder head from warping.

Introduction

At M.S. Motor, we understand that maintaining a BMW requires precision components that don't always need to carry the brand-new showroom price tag. This Genuine BMW water pump has been salvaged from low-mileage donor vehicles and subjected to rigorous bench testing to ensure internal motor integrity and impeller flow rates. Every unit is a Genuine factory part, offering superior heat dissipation and communication with the vehicle's BUS system compared to aftermarket alternatives. Our technicians have verified that the electrical connector pins are free from coolant ingress and corrosion, ensuring a plug-and-play solution for your N20 cooling system.

Product Details

• Brand: BMW (Genuine)
• Model Compatibility: F30 (320i, 328i), F10 (520i, 528i), F25 (X3 20i, 28i), E84 (X1 20i, 28i)
• Part Name: Electric Coolant Pump / Water Pump
• Part Number: 11517597181
• Condition: Genuine Used (Tested Working)
• Notes: This is the updated version of the N20 pump. It is highly recommended to replace the aluminum mounting bolts (one-time use) and the thermostat during installation to ensure system longevity.