Mercedes-Benz W203 W209 A/C Compressor A0002306511 - Used Original Parts

Quick Answer

A weak or warm A/C on a W203, W209 or R170 that traces back to the compressor itself (a noisy bearing, a clutch that will not engage, or internal wear) is usually fixed by replacing the compressor. For Malaysian owners who run the A/C hard every day in heat and traffic, a tested used original compressor is a sensible fit. It is an original part at a lower price, tested before sale, and covered by the warranty stated in the quote.

Diagnosis and Common Symptoms

The A/C compressor circulates and pressurises refrigerant through the system. In Malaysia it runs almost continuously, so wear shows up in a few typical ways on the W203, W209 and R170:

• Warm or only mildly cool air at the vents, even after the system has been correctly filled.
• A rattle, grinding or whine from the engine bay that starts or changes when the A/C is switched on. This points to a worn compressor bearing or internal wear.
• The clutch does not engage, or engages and drops out repeatedly, so the compressor never builds steady pressure.
• A squealing drive belt when the A/C is on, which can mean a tight or partly seized compressor.
• Stored faults or a warning in the climate control related to refrigerant pressure or the compressor clutch circuit. Read these with a Mercedes-capable scanner before condemning the compressor.

Check the simple causes first: refrigerant level, clutch power supply and fuses, the pressure sensor, and the belt. If the compressor has failed internally, metal debris can circulate through the system. Have the lines and condenser cleaned or checked and the drier handled by your workshop, so the replacement compressor is not contaminated.

Introduction

This is a Genuine Used Mercedes-Benz A/C compressor, an original part rather than an aftermarket replacement. Every unit is tested for working function before it is listed, and we provide actual photos or videos so you can see what you are buying. Our staff note identifies it as the W203 M111 aircond compressor, and it also covers the W209 CLK and R170 SLK listed below. It suits owners who want original quality and a tested part at a lower price.

Product Details

• Brand: Mercedes-Benz

• Model Compatibility: W203 C-Class, W209 CLK, R170 SLK

• Part Name: A/C Compressor (Aircond Compressor), W203 M111

• Condition: Genuine Used (Tested Working)

Part Numbers and Fitment

• Part numbers: A0002306511
• Fits: Mercedes-Benz W203 C-Class, Mercedes-Benz W209 CLK, Mercedes-Benz R170 SLK