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| OE Number | 11538843815, 11538511748 |
| Fitment | BMW 5 Series (F10/F11), 7 Series (F01), X3 (F25), X5 (F15), X6 (F16) |
| Applicable Engine | N57 (3.0L Diesel), B47 (2.0L Diesel), N55 (3.0L Petrol - specific variants) |
| Type | Electric Coolant Pump (Auxiliary/Additional) |
| Function | Circulates coolant for turbocharger after-run cooling, EGR system cooling, and auxiliary heating circulation. |
| Features | Direct OE replacement, durable construction, high-efficiency electric motor, essential for diesel thermal management and turbo protection. |
This high-quality Electric Coolant Pump is a direct replacement for BMW OE numbers 11538843815 and 11538511748. Specifically designed for N57 and B47 diesel engines found in the F-series chassis (F10, F15, F16, etc.), this pump is critical for the vehicle's thermal management system. It ensures proper cooling of the turbocharger after engine shutdown to prevent heat soak and oil coking, and also supports the EGR cooling circuit and cabin heating system. Manufactured to strict OEM specifications, it guarantees reliable performance and long service life.
Ensure the engine is cool and the battery is disconnected. Locate the electric coolant pump (typically mounted near the firewall or engine block). Drain a small amount of coolant to prevent spillage. Disconnect the electrical connector and remove the mounting bolts/hoses. Install the new pump, reconnect the electrical plug and hoses, and secure the mounting bolts. Refill coolant if necessary and bleed the system to remove air pockets.
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Franky Chung
17757458869
Franky