Mercedes C300 Cooling Parts: Match the Engine and Package
Compare an M272 thermostat package and a separate C300 expansion tank. Check engine and chassis fitment, included parts and coolant requirements.
By Lee Shahin ·
Genuine Mercedes Benz
Genuine Mercedes-Benz 2045000749 coolant expansion tank
Part or kit number: 2045000749
Genuine Mercedes-Benz 2045000749 coolant expansion tank. ECS explicitly excludes the level sensor and lid. Confirm the vehicle configuration and required accompanying parts on the retailer page before ordering. This is one tank, not a complete cooling-system kit.
Fitment and identification
ECS lists2008 Mercedes-Benz C300 4Matic Luxury V6 3.0L272.948,204.081, among applications. Confirm exact configuration; model badge alone is insufficient.
Identity reviewed 9/22/2026.
Retailer offers
We may earn a commission from qualifying purchases. As an Amazon Associate I earn from qualifying purchases. Retailers handle payment, availability, shipping and returns. Affiliate disclosure.
Verified offers are ordered by most recent landing-page verification, then review date and retailer name. Check current price and availability with the retailer.
Ask about this part or future sourcing