Mercedes W203 W211 Kompressor Petrol Air Conditioning Compressor

The Mercedes W203 W211 Kompressor AC Compressor is an original air conditioning system component from the Mercedes group, designed for installation in the front of a gasoline-powered vehicle. A used compressor from the AC compressors and clutches category allows for an economical restoration of cabin cooling system efficiency, while maintaining factory operating standards and vehicle installation compatibility.

Specifications and technical data

• SKU: A0012305511
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0012305511
• Substitutable numbers: A0012305511, A 001 230 55 11
• Location on the vehicle: Front
• Fuel type: Petrol
• Category: A/C Compressors & Clutches

Intended Use and Compatibility with Mercedes W203 / W211

The presented AC compressor is dedicated to popular models of the Mercedes C-Class W203 and Mercedes E-Class W211 with gasoline engines. Its placement in the front of the engine compartment ensures easier service access and proper cooperation with the belt-driven accessories and other components of the air conditioning system.

By retaining its original design, the compressor works with original hoses, condenser, dryer, and AC controls, which reduces the risk of fitting issues and eliminates the need for installation modifications.

Construction and Technical Characteristics of the AC Compressor

The compressor-type AC compressor used in Mercedes W203 and W211 has been designed for stable operation under a wide range of loads. Its construction allows for mounting at the front of the powertrain, which promotes effective body cooling and convenient routing of refrigerant lines.

Key functional features of this compressor include:

• Factory mounting geometry – ensures correct alignment with other engine accessory components.
• Adapted for gasoline engines – operating parameters matched to the characteristics of gasoline units used in the W203 and W211.
• Cooperation with the original compressor clutch – maintains correct response to control signals from the AC module.
• Stable operation in urban and highway conditions – design intended for frequent on/off cycles.

Benefits of Using an Original Mercedes AC Compressor

Choosing a used, original AC compressor for a Mercedes offers a number of practical advantages compared to cheap, unknown-origin aftermarket parts. The most important benefits include:

• Better fit for the AC system – no issues with mounting geometry, port diameters, or electrical connector types.
• Consistency with factory controls – proper cooperation with pressure sensors, the AC module, and vehicle electronics.
• Reduced risk of leaks – original body and connection design facilitates proper system sealing after installation.
• Economical restoration of AC functionality – favorable cost-to-functionality ratio compared to new components.

If you are looking for other parts from the Mercedes AC compressors and clutches category, check out the Mercedes AC compressors and clutches available in our store to select the right component for your model.

Condition, Installation, and Service Recommendations

The offered AC compressor is a used part, sourced from a dismantled Mercedes vehicle. Such components are often chosen by users who want to maintain their car in good technical condition while controlling the costs of air conditioning system repairs.

When installing the compressor, it is recommended to:

• Professionally flush the system – to remove any potential contaminants from the previous failure.
• Replace the dryer and inspect the condenser – which increases the durability of the entire system.
• Precisely fill with refrigerant – according to the vehicle manufacturer's guidelines.

This approach allows for full utilization of the used compressor's potential and reduces the risk of recurring faults shortly after repair.

Why Choose Used Original Mercedes Components

For premium brands like Mercedes, choosing used original parts – including AC compressors – is often a sensible compromise between quality and cost. We discuss this in more detail in the article: Used Mercedes Parts – Original Parts from Dismantling, where we explain the practical aspects of operating such components.

If you want to be even more certain about part compatibility using OEM numbers, the guide Risk-Free Online Parts Shopping – Verifying Components by OEM Numbers may be helpful, where we discuss best practices for selecting parts for Mercedes cars, among others.