Mercedes-Benz W221 Radiator with Auxiliary Cooler and Electric Fan Assembly - Used Original Parts
RM 1,200
Condition: Used (Original)Description
Product Title
Mercedes-Benz W221 Radiator with Auxiliary Cooler and Electric Fan Assembly - Used Original Parts
Diagnosis and Common Symptoms
A failing radiator or cooling fan assembly on the W221 S-Class typically presents with coolant temperature fluctuations, an illuminated engine warning light, or a visible drop in coolant level without external leaks. Common fault codes logged by the SBC/ME control units include coolant temperature sensor implausibility, radiator fan control module faults (N9/4 or A4/2), and low coolant level warnings on the instrument cluster. Drivers often report the auxiliary transmission oil cooler underperforming, causing elevated automatic transmission temperatures during heavy traffic or towing. A cracked end tank, clogged fin core, or a seized/noisy electric fan motor are the usual mechanical culprits, frequently accompanied by AC system inefficiency since the condenser sits in front of this assembly. Left unresolved, these issues can lead to overheating, transmission damage, or air conditioning compressor strain due to reduced heat exchange.
Introduction
This is a Genuine Used Mercedes-Benz W221 Radiator with Auxiliary Cooler and Electric Fan Assembly, removed from a running donor vehicle and fully Tested for structural integrity, fan operation, and coolant flow. Unlike aftermarket reproductions, this unit retains the exact OE fin density, mounting geometry, and factory wiring harness connectors for a true plug-and-play fit. Every core has been pressure-checked for leaks and the fan motor bench-tested under load prior to listing. A cost-effective, reliable alternative to new dealer pricing without compromising fitment or performance.
Product Details
- Brand: Mercedes-Benz
- Model Compatibility: W221 S-Class (S300, S350, S400, S500, S550, S600, S63 AMG, S65 AMG)
- Part Name: Radiator with Auxiliary Cooler and Electric Fan Assembly
- Condition: Genuine Used (Tested Working)
- Notes: Complete assembly including main radiator core, auxiliary transmission oil cooler, factory shroud, and OE electric fan motor. Pressure-tested for leaks, fan motor verified under current draw test. Mounting brackets and connector plugs included as pictured.
Frequently Asked Questions
Q: What symptoms indicate the auxiliary cooler on my W221 needs replacement? A: Elevated automatic transmission fluid temperature readings, transmission harsh shifting under load, or visible oil residue mixing near the front radiator support are common indicators the auxiliary cooler section has developed an internal leak.
Why Choose Us?
- Verified functionality
- Actual photos/videos provided
- 30-day exchange warranty
- Pressure and leak tested to confirm no internal cross-contamination between coolant and transmission oil circuits
Shipping
Location: Kuala Lumpur, Malaysia Shipping: West Malaysia RM50 (Estimate) / East Malaysia RM80 (Estimate) Delivery: 1-2 working days Packaging: Secure anti-static packaging, heavy-duty shock absorption. (We send actual photos/videos of the unit and packaging before shipping)
Warranty and Return Policy
- 30-day exchange warranty from the date of receipt.
- Proof of professional installation by a qualified workshop is required for warranty claims.
- No returns if the item is opened, modified, tampered with, or damaged due to incorrect electrical wiring.
- Exchange only for confirmed internal electronic defects.
How to Order
- WhatsApp us to confirm compatibility with your specific VIN.
- Send your chassis number or a clear photo of your old unit label.
- Confirm order details and stock availability.
- Receive actual product photos and diagnostic test confirmation.
- Make payment via bank transfer.
- Item is shipped immediately with tracking details provided.
Contact Us
Ready to order or have questions? Tap the WhatsApp button to chat with our team directly.
Price Notice
Price is estimated only. Actual price depends on current stock levels, specific part number revisions, and unit condition. Please WhatsApp us for a formal quote.
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