BMW F15 F30 G30 Hybrid Auxiliary Coolant Pump - Used Original Parts
RM 650
Condition: Used (Original)At a Glance
- BMW F15 F30 G30 Hybrid Auxiliary Coolant Pump - Used Original Parts
- Part number: 8638239
- Fits: BMW F30 330e, BMW X5 F15 40e, BMW G30 530e · confirm by chassis number before ordering
- Used Original · tested working
- RM 650 · final quote via WhatsApp
- M.S. Motor · Kuala Lumpur, Malaysia · ready stock
Diagnosis and Common Symptoms
In BMW plug-in hybrid electric vehicles (PHEV) such as the F15 X5 40e, F30 330e, and G30 530e, the thermal management system relies heavily on the auxiliary coolant pump to regulate the temperature of the high-voltage battery and the electric motor. When this pump begins to fail, the hybrid system cannot dissipate heat efficiently, leading to immediate protective measures by the vehicle's computer. Drivers will typically see a "Drivetrain malfunction: Continue driving possible" or a specific "High-voltage system overheated" message on the iDrive display.
From a diagnostic standpoint, you will likely scan fault codes such as 20A504 (Auxiliary coolant pump for high-voltage battery: dry run or blockage), 20A701, or CD9010 via ISTA. Physical symptoms include a severe reduction in electric-only driving availability, the combustion engine engaging constantly to protect the electric drive, or a complete shutdown of the eDrive system. In some circuit configurations, failure may also result in poor cabin heating when the combustion engine is off.
Introduction
When maintaining the complex thermal management system of your BMW hybrid, utilizing Genuine parts is non-negotiable. This Genuine Used auxiliary coolant pump has been rigorously tested by our technicians to ensure optimal flow rates, quiet bearing operation, and perfect electrical integrity. Rather than risking aftermarket alternatives that often fail under high-voltage cooling demands, this tested original unit restores factory-grade thermal reliability to your hybrid drivetrain.
Product Details
- Brand: Genuine BMW
- Model Compatibility: F15 X5 40e, F30 330e, G30 530e (and compatible PHEV models)
- Part Name: Hybrid Auxiliary Coolant Pump
- Condition: Genuine Used (Tested Working)
- Notes: Bench-tested for correct impeller RPM and electrical continuity. Proper bleeding of the high-voltage cooling circuit using diagnostic software is strictly required after installation.
Frequently Asked Questions
What symptoms indicate failure?
Common indicators include a "Drivetrain Malfunction" warning on the dashboard, the inability to drive in full electric (eDrive) mode, the high-voltage battery overheating, and the combustion engine running constantly to compensate for the restricted hybrid cooling.
Does this require coding?
No, the auxiliary coolant pump itself does not require module coding or programming. However, a strict automated bleeding procedure using ISTA or an advanced scan tool must be executed to remove air pockets from the complex hybrid cooling loop.
Is this original?
Yes, this is a Genuine BMW component. It has been carefully removed from a functioning donor vehicle and fully tested to ensure it meets factory flow and pressure specifications.
Part price does not include installation. Our workshop can install for you, labour is charged separately and confirmed with you before any work starts.
We cannot diagnose your car over WhatsApp or photos. Not sure this part will solve your problem? Come for a workshop check, diagnosis fee RM180. If you proceed with the repair using our parts, the RM180 is offset into the labour charge. If you decide not to repair, only the RM180 applies.
All parts are tested and guaranteed to work. Whether a part solves your car's problem can only be confirmed by diagnosis.
Shipping: from Kuala Lumpur, West Malaysia ~RM50, East Malaysia ~RM80 (estimate, confirm via WhatsApp). Delivery 1-2 working days in secure anti-static packaging.
Warranty: 30-day exchange for control units, engines, gearboxes and other major parts; 14 days for small parts. Claims require proof of installation by a qualified workshop. No warranty for items opened, modified, or damaged by wrong installation.
Prices vary with stock and part condition. Final price via WhatsApp.
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