Mercedes-Benz C-Class W202 W203 Secondary Auxiliary Air Pump A0001404285

The Mercedes-Benz C-Class W202/W203 Secondary Air Pump is an air supply system component that supports engine operation during the start-up and warm-up phases. As part of the air conditioning compressors and clutches group, mounted at the front of the vehicle, it is an important component for the proper functioning of the powertrain and related auxiliary systems.

Specifications and technical data

• SKU: A0001404285
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0001404285
• Substitutable numbers: A0001404285, A 000 140 42 85, BG
• Location on the vehicle: Front
• Offset (ET):
• Category: A/C Compressors & Clutches

Application in Mercedes-Benz C-Class W202 and W203

The secondary air pump for Mercedes-Benz C-Class W202 and W203 generations has been designed for factory integration with the engine system. Its placement at the front of the vehicle facilitates service access and reduces the time required for replacement in workshop conditions.

This component works with the factory electrical and vacuum system, so after correct installation, it restores the proper operating parameters of the powertrain, particularly in terms of cold start phase and idle speed stabilization.

Category: Air Conditioning Compressors and Clutches

The presented secondary air pump belongs to the air conditioning compressors and clutches category, meaning it is part of the engine accessory group responsible for cooperation with the belt drive and auxiliary components. These types of components require precise matching to a specific model, therefore choosing a part dedicated to the C-Class W202/W203 reduces the risk of compatibility issues.

If you are looking for other products from the same group, such as air conditioning compressors or clutches for this brand, check out the Mercedes air conditioning compressors and clutches available in our store to select engine accessories that meet your car's requirements.

Technical Characteristics and Installation

The secondary air pump is mounted at the front of the engine bay, which facilitates easier cable routing and improves accessibility during service operations. The design intended for a specific vehicle platform allows for the preservation of factory mounting points and correct installation routing.

• Front Placement – facilitates diagnostics, removal, and installation in workshop conditions.
• Dedicated Fit for C-Class – reduces the need for modifications and ensures predictable system behavior.
• Compatibility with Engine Accessories – works with other components from the air conditioning compressors and clutches group.

By maintaining the original geometry and mounting points, the secondary air pump can be integrated into the existing system without altering the body structure or engine mounts.

Used Genuine Mercedes Part

The offered item is a used genuine Mercedes part, sourced from disassembly. Choosing a component from this group allows for the preservation of factory manufacturing standards while reducing costs compared to new components. This is a particularly beneficial solution for older C-Class generations, where maintaining the car in good technical condition with a reasonable budget is crucial.

If you want to learn more about the advantages of using genuine disassembled parts in cars of this brand, read the article used parts for Mercedes – genuine parts from disassembly, where we discuss, among other things, the selection of air conditioning compressors and other accessory components.

Why Choose This Secondary Air Pump

• Dedicated to Mercedes-Benz C-Class W202/W203 – structural compatibility with the specific model platform.
• Factory Front Placement – improved service accessibility and predictable installation.
• Genuine Origin – maintains the quality standards characteristic of the Mercedes brand.
• Reasonable Cost-Functionality Compromise – a used part allows for reduced expenses while maintaining proper system operation.

For those interested in a broader perspective on the used parts market, we have also prepared a guide to the most frequently chosen components – you can find it in the material best used car parts – a guide to genuine components, which will help you consciously plan future repairs and upgrades.

Summary

The secondary air pump for Mercedes-Benz C-Class W202/W203 is a practical solution for users who want to restore the proper operation of the air supply system and engine accessories by using a genuine disassembled component. Its dedicated fit for a specific C-Class generation, front vehicle placement, and belonging to the air conditioning compressors and clutches group make it a functional choice for servicing and maintaining cars of this series.