1645000049 Engine Coolant Reservoir Radiator Expansion Tank with Sensor & Pressurized Cap for 06-15 Mercedes-Benz GL320 GL350 GL450 GL550 SLS AMG ML350 ML450 ML500 ML550 ML63 Replaces# 603-256 EPT0009

Compatible with the following
Mercedes-Benz vehicles: For 07-08 GL32010-12 GL35007-12 GL45008-12 GL550. For 07-08 ML32006-11 ML350 4Matic06-07 ML350 Base09-11 ML350 Base10-11 ML350 Bluetec 4Matic08-09 ML350 Lujo10-11 ML350 Sport AMG10-11 ML450 Hybrid 4Matic06-07 ML500 Base08-11 ML550 Base07-11 ML63 AMG Base. For 11-12 SLS AMG Base Coupe13-15 SLS AMG GT Convertible13-15 SLS AMG GT Coupe. Please check the second main picture to confirm coolant reservoir whether compatible with your car.
^^Function: The coolant tank contains coolant fluid that is discharged from the cooling system attached to the engine. Pressure builds up and released when the coolant is hot and expanding through the radiator and when the engine cools down, the excess fluid flows back into the radiator from the coolant tank of your vehicle. If you are experiencing leaks, low level of coolant and overheating engine then you may have a problem with your coolant reservoir tank.
^^High-quality: The coolant reservoir expansion recovery tank with cap is made from high quality PP plastic materials can withstand excessive heat and vibration, light and durable. Pressurized cap sealability better than ordinary sealing cover, have a better leak proof design. While this is not a genuine OEM part, but it can directly replace and good value.