Mercedes W169 W245 M266 Petrol Engine Intake Manifold Regeneration Valve

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W169 W245 M266 Petrol Engine Intake Manifold Regeneration Valve is a precision component of the petrol engine control system, responsible for proper vacuum management in the front part of the engine bay. Thanks to its factory design intended for Mercedes W169 and W245 series models, the valve ensures stable operation of accessories, including components working with Intake Manifolds. This is a solution for users who expect proven, original geometry and correct vacuum operating characteristics.

Specifications and technical data

• SKU: A1694700193
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1694700193
• Substitutable numbers: A1694700193, A 169 470 01 93, KZ
• Location on the vehicle: Front
• Fuel type: Petrol
• Category: Intake Manifolds

Purpose and technical function

The presented vacuum valve is designed to operate in the front part of the vehicle, in the immediate vicinity of the intake system. Its task is to control vacuum flow in the petrol engine, which translates into proper control of components working with the intake manifold, such as flaps, actuators, or other vacuum-controlled sub-assemblies.

A properly functioning valve helps maintain stable engine operating parameters, reduce power drops, and prevent unstable idle speed. In the case of modernization or repair of the intake system in a Mercedes, replacing a worn valve with a functional unit is one of the key diagnostic steps.

Compatibility with Mercedes W169 / W245

The M266 model has been developed with the specific architecture of the engine bay in compact-class Mercedes vehicles in mind. This means matched connection geometry, correct mounting points, and operating characteristics consistent with the engine control unit requirements for petrol engines.

As a result, installation is straightforward, without the need for modifications to the vacuum system. The valve works with factory hoses and accessory components, which facilitates maintaining the integrity of the entire intake system.

Performance characteristics and benefits

As an element from the Intake Manifolds group, the vacuum valve has a direct impact on the engine's load response dynamics and the overall refinement of the power unit. A properly functioning component allows you to:

• maintain stable control of vacuum elements in the intake system,
• reduce the risk of ECU errors related to incorrect manifold pressure,
• limit torque fluctuations during load changes,
• maintain predictable engine behavior across the entire rev range.

Using this type of component is a good choice for repairs where maintaining the original operating characteristics of the system is important, while simultaneously optimizing service costs.

Component condition and installation aspects

The offered vacuum valve is in used condition, meaning it has been removed from a vehicle and verified for further serviceability. This type of part allows for an economical repair of the intake system without sacrificing the factory design and fitment for a specific petrol engine configuration.

Before installation, a standard check of the vacuum system is recommended – including hose tightness, connection correctness, and the condition of the ports. A properly performed replacement minimizes the risk of recurring leaks and facilitates subsequent diagnostics of any potential faults.

Intake system expansion and technical knowledge

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional valves, actuators, or vacuum control components, check the available parts in the Mercedes Intake Manifolds category.

For users interested in the broader context of intake system operation and its impact on performance, material describing the use of used manifolds in modifications and repairs may be useful. More information can be found in the article Performance exhaust system: used manifolds and sports catalytic converters on the road, which covers the selection and operation of components working with the intake system.

If you want to better take care of the durability of components sourced from dismantling, it is also worth reading the guide How to extend the life of used car parts?, where practical methods for maintenance and operation of used engine components and accessories are described.

Summary

Mercedes W169 W245 M266 Petrol Engine Intake Manifold Regeneration Valve is a technically matched intake system component for petrol engines, mounted in the front part of the vehicle. It enables the restoration of proper vacuum control within the intake manifold, which translates into stable engine operation and predictable vehicle behavior in daily use.