Mercedes Expansion Tank with Cap | W203 W209 C230 C240 CLK350 CLK500

Engine Coolant Expansion Tank with Cap – Mercedes-Benz W203 / W209
Reliable Cooling System Performance & Secure Fit

Maintain proper coolant levels and system pressure with this high-quality engine coolant expansion tank, designed for selected Mercedes-Benz models. Supplied complete with a cap, this unit ensures reliable cooling system operation and helps prevent overheating.

🚗 Compatibility
Mercedes-Benz W203 (C-Class)
C230
C240
Mercedes-Benz W209 (CLK-Class)
CLK350
CLK500
🔧 Key Features
Complete Unit with Cap – Ready for installation
Durable Construction – Built for long-lasting performance
Translucent Tank Design – Easily monitor coolant levels
Secure Sealing Cap – Maintains proper system pressure
Integrated Mounting Bracket – Ensures precise fitment
OEM-Style Replacement – Designed to match original specifications
⚙️ Function
Stores excess coolant from the radiator
Regulates pressure within the cooling system
Helps prevent overheating and coolant loss
⚡ Performance Benefits
Reliable cooling system operation
Easy coolant level inspection
Reduced risk of leaks and pressure loss
Supports long-term engine protection
📦 What’s in the Box
1 × Coolant Expansion Tank
1 × Expansion Tank Cap
⚠️ Important Compatibility Notice

Before purchasing, please ensure:

The expansion tank matches your vehicle model and engine variant
The mounting points, hose connections, and design match your existing unit
The OEM or reference part number corresponds with your vehicle
📌 Disclaimer – Please Read Before Purchasing
This product is intended for specific Mercedes-Benz models only
Incorrect installation or incompatibility may result in:
Coolant leaks
Overheating issues
Engine damage
Returns or exchanges:
Accepted only if unused and in original packaging
Must include proof of compatibility verification
Courier fees may apply
Installation by a qualified mechanic is strongly recommended
The seller is not liable for damages resulting from improper installation or incompatible use
💡 Need Assistance?

Contact us with your:

Vehicle details (model, year, engine)
VIN or part number

We’ll help confirm compatibility before purchase.