Dorman 603-283 Engine Coolant Reservoir - Front

Overview of Dorman Engine Coolant Reservoir 603-283

The Dorman 603-283 engine coolant reservoir is designed for select Mercedes-Benz models, including the CLS and E-Class AMG and standard variants. This replacement reservoir is made from durable plastic and comes with a cap and mounting brackets for secure installation.

• Constructed from durable plastic material for long-lasting use
• Includes one mounting bracket and one mounting hole for proper fitment
• Comes with a compatible cap included for a complete assembly
• Non-pressurized design suitable for specific Mercedes-Benz cooling systems
• Compatible with multiple Mercedes-Benz CLS and E-Class models

Detailed Product Description

The Dorman 603-283 engine coolant reservoir is engineered to meet the specifications of various Mercedes-Benz vehicles such as the CLS55 AMG, CLS63 AMG, CLS350, CLS500, CLS550, E55 AMG, E63 AMG, E280, E300, E320, E350, E500, and E550. The reservoir is constructed from high-quality plastic, ensuring resistance to heat and corrosion commonly found in engine compartments. Its black and white color scheme allows for easy fluid level monitoring. The included mounting brackets and single mounting hole facilitate a secure and precise fit, while the included cap ensures a sealed system to maintain coolant integrity. This reservoir is designed as a non-pressurized component, matching the original equipment specifications for the listed Mercedes-Benz models.

Common Applications and Issues Addressed

• Replacement for cracked or leaking coolant reservoirs
• Resolves coolant overflow or low coolant level warnings
• Prevents engine overheating due to coolant loss
• Restores proper coolant containment and circulation
• Eliminates coolant contamination from damaged or missing caps

Installation Notes and Tips

• Ensure the engine is cool before removing the old reservoir to avoid burns
• Check for any damaged hoses or fittings during installation
• Use the included mounting brackets and hole for secure attachment
• Verify the cap is properly sealed after installation to prevent leaks
• Dispose of old coolant and reservoir according to local regulations

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-283 engine coolant reservoir undergoes rigorous quality control to ensure durability and reliability in Mercedes-Benz cooling systems. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Refer to Dorman’s official warranty policy for complete information.