Mercedes-Benz W212 W204 W207 W218 Coolant Expansion Tank - Used Original Parts
RM 200
Condition: Used (Original)Description
Product Title
Mercedes-Benz W212 W204 W207 W218 Coolant Expansion Tank - Used Original Parts
Diagnosis and Common Symptoms
On the W204, W212, W207, and W218 platforms, the coolant expansion tank is subjected to extreme heat cycles which eventually degrade the plastic composite. The most common failure mode involves hairline cracks developing along the molding seams or near the return hose nipple, leading to a slow loss of pressure and coolant. Drivers will often see the "Check Coolant Level" warning on the instrument cluster. Additionally, the internal magnetic float for the level sensor can fail or stick; this results in a persistent dashboard warning light even when the fluid level is actually correct. If you smell sweet antifreeze vapors or spot blue/green residue in the engine bay, the tank structure is likely compromised.
Introduction
Replace your leaking or faulty reservoir with a Genuine Used Mercedes-Benz expansion tank. Unlike aftermarket alternatives that often use inferior plastics prone to warping and sensor calibration errors, this original unit ensures perfect fitment and accurate level readings. We have visually inspected and pressure-tested this part to confirm it is free from cracks and leaks, offering a reliable repair solution at a fraction of the dealer price.
Product Details
- Brand: Mercedes-Benz (Genuine)
- Model Compatibility: C-Class (W204), E-Class (W212, W207), CLS-Class (W218)
- Part Name: Coolant Expansion Tank / Reservoir
- Condition: Genuine Used (Tested Working)
- Notes: Unit has been pressure tested for hairline cracks. Includes integrated level sensor functionality verification. Please verify part number matches your specific engine configuration.
Frequently Asked Questions
Q: What symptoms indicate failure? A: The primary symptoms are visible coolant leaks under the engine, the smell of burnt coolant, or a "Check Coolant Level" warning on the dashboard that returns shortly after topping up.
Q: Does this require coding? A: No, this is a mechanical component with a simple electrical plug for the sensor. It is plug-and-play and requires no ECU coding or programming.
Q: Is this original? A: Yes, this is a Genuine Mercedes-Benz part taken from a donor vehicle, not a third-party reproduction.
Why Choose Us?
- Verified functionality
- Actual photos/videos provided
- 30-day exchange warranty
- Pressure-tested to ensure seam integrity and sensor operation
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
William – https://wa.me/60102992988 Lok – https://wa.me/60177720143
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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