Mercedes W220 S 55 AMG EGR Valve Vacuum Solenoid M112 M113 A1121400060

Mercedes W220 S 55 AMG EGR Valve Vacuum Solenoid M112 M113 is an original exhaust gas recirculation system component designed for the M112 and M113 series petrol engines in the S-Class W220 model. This component from the EGR valves and parts group ensures proper exhaust flow control, stable engine operation, and compliance with exhaust emission requirements in Mercedes vehicles.

Specifications and technical data

• SKU: A1121400060
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1121400060
• Substitutable numbers: A1121400060, A 112 140 00 60
• Part type: EGR Valve
• Category: EGR Parts & Valves

Function and role of the vacuum EGR valve

The vacuum EGR valve in M112 and M113 engines is responsible for the precise dosing of exhaust gases directed back into the intake manifold. Thanks to vacuum control, smooth opening and closing of the valve is possible, which contributes to:

• stable engine operation across a wide load range,
• reduction of nitrogen oxide (NOx) emissions,
• more uniform air-fuel mixture combustion,
• reduced risk of knocking at higher loads. A properly functioning vacuum EGR valve is particularly important in powerful AMG units, where the precision of exhaust gas control has a direct impact on engine refinement and durability.

Compatibility with Mercedes W220 S 55 AMG and M112/M113 engines

The described element has been designed for use in the Mercedes W220 S 55 AMG model, working with M112 and M113 series engines. This means it is matched in terms of:

• geometry of connections to the intake and vacuum system,
• valve opening characteristics matched to the engine control maps,
• operating parameters consistent with the manufacturer's factory specifications. As a result, installation is similar to replacing a factory component, without the need for system modifications or additional mechanical adaptations.

Characteristics of the used component

The presented EGR valve comes from the secondary market, which allows combining the functionality of an original component with an attractive price. A used element of this class is a solution often chosen by those looking for:

• factory fitment for a specific Mercedes model,
• a component consistent with the operating parameters of an AMG unit,
• a reasonable compromise between repair cost and part quality. In the case of valves from the EGR valves and parts group, it is particularly important to maintain proper tightness and correct response to vacuum control, which translates into stable idle values and proper throttle response.

Benefits of using an original EGR valve

Using an original vacuum EGR valve in a Mercedes W220 S 55 AMG brings a number of practical benefits:

• Consistency with factory control – the valve works with the existing vacuum system and engine ECU without the need for software interference.
• Stable engine operation – proper exhaust gas recirculation reduces idle fluctuations and improves engine refinement, especially in the low and medium load range.
• Support for the exhaust emission system – a functional EGR helps maintain emission parameters at a level close to factory specifications, which is important for periodic technical inspections.
• Reduced risk of diagnostic errors – a properly working valve reduces the likelihood of exhaust gas recirculation-related errors appearing in the ECU memory.

Repair using used parts and the circular economy

Choosing a used EGR valve for a Mercedes is not only a saving but also a real contribution to reducing the consumption of raw materials and energy needed to produce new components. If you want to better understand how conscious use of dismantled parts affects the environment and your household budget, read the article: Circular economy in your garage – how choosing used parts from dismantling really supports environmental protection and your wallet?.

Expansion of the exhaust gas recirculation system in a Mercedes

If you are planning a comprehensive repair or upgrade of the exhaust gas recirculation area in your Mercedes and need other elements from the same group, such as vacuum lines, additional control valves, or mounting elements, check the available parts in the Mercedes EGR valves and parts category. For drivers who want to learn more about the second-hand parts market and discover the most frequently chosen solutions for popular models, we have prepared a practical guide: Best used car parts – a guide to the most frequently chosen original parts.