Motorad 269-180 Engine Coolant Thermostat

Overview of Motorad Standard 269-180 Engine Coolant Thermostat

The Motorad Standard 269-180 engine coolant thermostat is designed for precise temperature regulation in select Mercedes-Benz models. Engineered to maintain optimal engine temperature at 180 degrees Fahrenheit, this thermostat ensures efficient engine performance and longevity.

• Sealing flange outside diameter: 2.64 inches
• Bypass diameter: 1.14 inches
• Bypass length: 1.73 inches
• Flange thickness: 0.06 inches
• Includes jiggle pin weep hole for air bleeding
• Temperature rating: 180°F
• No gasket or seal included
• No installation tool included

Detailed Product Description

The Motorad Standard 269-180 thermostat is a critical component in the cooling system of various Mercedes-Benz vehicles, including the 380SE, 380SEC, 380SEL, 380SL, 400E, 400SE, 400SEL, 420SEL, 500E, 500SEC, 500SEL, 500SL, 560SEC, 560SEL, 560SL, CL500, E420, E500, S420, S500, and SL500 models. This thermostat features a sealing flange with an outside diameter of 2.64 inches and a flange thickness of 0.06 inches, ensuring a secure fit within the housing. The bypass diameter of 1.14 inches and bypass length of 1.73 inches facilitate proper coolant flow during engine warm-up phases. The jiggle pin weep hole allows trapped air to escape, preventing air pockets that can affect cooling efficiency. Rated to open at 180 degrees Fahrenheit, this thermostat helps maintain consistent engine temperature for optimal operation.

About the Motorad Standard Product Line

The Motorad Standard line offers reliable replacement parts designed to meet original equipment specifications. The Standard series focuses on delivering dependable performance and fitment for a wide range of vehicles, including Mercedes-Benz models. The 269-180 thermostat from this line provides a balance of quality and value, engineered to match factory standards without additional accessories such as gaskets or installation tools.

Common Applications and Issues Addressed

• Regulates engine temperature to prevent overheating
• Prevents engine coolant bypass issues during warm-up
• Eliminates air pockets in the cooling system via jiggle pin weep hole
• Maintains consistent engine operating temperature for fuel efficiency
• Replaces faulty or stuck thermostats in Mercedes-Benz 380SE, 500SL, and related models

Installation Notes and Tips

• Ensure the sealing flange matches the housing dimensions (2.64 inches outside diameter)
• Verify the bypass diameter and length for compatibility with your vehicle’s cooling system
• Use appropriate tools as no installation tool is included
• Inspect and replace the gasket or seal separately, as it is not included with this thermostat
• Bleed the cooling system to remove air pockets, utilizing the jiggle pin weep hole feature

Quality Assurance

Motorad Standard thermostats are manufactured to meet OEM specifications for fit and function. While no specific warranty information is provided, Motorad products typically undergo rigorous quality control to ensure durability and reliable performance in Mercedes-Benz vehicles. The 269-180 thermostat is designed to provide consistent temperature regulation and long service life when installed correctly.