Genuine 1121400312 Engine Air Intake Hose

Overview of Genuine Engine Air Intake Hose for Mercedes-Benz

The Genuine Engine Air Intake Hose, part number 1121400312, is designed specifically for select Mercedes-Benz models including the C280, CLK320, E320, E430, and various ML-Class vehicles. This component plays a critical role in maintaining proper airflow to the engine, ensuring optimal performance and efficiency.

• Compatible with Mercedes-Benz C280, CLK320, E320, E430, ML55 AMG, ML320, ML350, ML430, and ML500
• OEM part number 1121400312 for precise fit and function
• Engine air intake hose designed to maintain consistent airflow and prevent leaks
• Constructed to withstand engine bay heat and pressure variations
• Direct replacement for factory-installed air intake hoses

Detailed Product Description

This Genuine engine air intake hose (part number 1121400312) is engineered to meet the exact specifications required by Mercedes-Benz for a range of models including the C280, CLK320, E320, E430, and ML-Class SUVs such as the ML55 AMG and ML350. The hose ensures a secure and airtight connection between the air filter box and the engine throttle body, facilitating efficient air delivery necessary for combustion. Its durable construction resists cracking, splitting, and deformation caused by heat and engine vibrations, which helps maintain engine performance and fuel efficiency over time.

Common Applications and Problem Resolution

• Replaces cracked or brittle air intake hoses causing air leaks
• Eliminates rough idling or engine hesitation due to unmetered air intake
• Prevents check engine light triggers related to intake air flow issues
• Restores proper air-fuel mixture for improved engine responsiveness
• Addresses vacuum leaks impacting fuel economy and emissions

Installation Notes and Tips

• Ensure engine is cool before beginning installation to avoid burns
• Inspect surrounding components such as clamps and air filter housing for wear
• Use appropriate tools to loosen and tighten hose clamps securely
• Verify hose alignment to prevent kinks or pinching that could restrict airflow
• Test engine operation after installation to confirm proper fit and function

Quality Assurance and Warranty Information

As a Genuine Mercedes-Benz replacement part, the 1121400312 engine air intake hose meets strict OEM quality standards for fit, form, and function. This ensures reliable performance and durability consistent with factory specifications. Warranty coverage details are provided by the manufacturer and typically cover defects in materials and workmanship under normal use conditions.