Dorman 603-272 Engine Coolant Reservoir - Front

Overview of Dorman Engine Coolant Reservoir 603-272

The Dorman 603-272 engine coolant reservoir is designed for select Mercedes-Benz models including the C36 AMG, C43 AMG, C280, CLK320, and CLK430. This durable plastic reservoir ensures proper coolant storage and pressure management to maintain optimal engine temperature.

• Material: High-quality plastic construction
• Dimensions: 11.5 inches length, 9 inches height
• Color: Black and white for clear coolant level visibility
• Rectangular shape with 2 mounting holes and included mounting brackets
• Includes spring loaded twist cap rated for 21 psi maximum pressure
• Pressurized reservoir with 1.7-liter capacity
• Cap included; level sensor not included
• Package contains one coolant reservoir and one cap

Detailed Product Description

The Dorman 603-272 engine coolant reservoir is engineered to meet the specifications required by Mercedes-Benz vehicles such as the C36 AMG, C43 AMG, C280, CLK320, and CLK430. Constructed from durable plastic, this rectangular reservoir measures 11.5 inches in length and 9 inches in height, providing a 1.7-liter capacity to accommodate the engine’s cooling system needs. The black and white coloration allows for easy monitoring of coolant levels. It features two mounting holes and comes with mounting brackets for secure installation. The included spring loaded twist cap is pressurized and rated to withstand up to 21 psi, ensuring the cooling system maintains proper pressure during operation. While the reservoir does not include a level sensor, it is compatible with existing sensor setups in the specified Mercedes-Benz models.

Common Applications and Problem Resolution

• Replacement for cracked or leaking coolant reservoirs in Mercedes-Benz C36 AMG and C43 AMG
• Restores proper coolant pressure and prevents overheating in C280 and CLK320 models
• Addresses coolant loss due to damaged or faulty reservoirs in CLK430 vehicles
• Helps maintain engine temperature stability by ensuring coolant containment
• Prevents air entry into the cooling system caused by reservoir failure

Installation Notes and Tips

• Ensure the vehicle is cool before removing the old reservoir to avoid injury
• Use the included mounting brackets and verify the two mounting holes align with factory points
• Check the spring loaded twist cap for proper sealing and pressure rating during installation
• Refill the reservoir with the recommended coolant type for your Mercedes-Benz model
• Inspect hoses and connections for leaks after installation

Quality Assurance and Warranty

Dorman manufactures the 603-272 engine coolant reservoir to meet or exceed OEM standards for fit, form, and function. The product includes a spring loaded twist cap rated for 21 psi to maintain system pressure. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship. This reservoir is engineered to provide reliable service for Mercedes-Benz C36 AMG, C43 AMG, C280, CLK320, and CLK430 models requiring a direct replacement part.