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How to Repair Your Car's Air Conditioner

Model: Mercedes Sl MK 5, R129 - Years: 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
Part: Air conditioning

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Video tutorial

The following guide shows how to repair your car's air conditioner, which is essential especially when the seasons change and during long trips. The guide demonstrates how to do it independently without the help of a specialized technician.

The first thing to do is check that the refrigerant, the fluid that carries heat from the inside to the outside, is present in the car. If the problem involves the wiring, it will be sufficient to locate the compressor side and connect it to the positive terminal of the battery; otherwise, you will need to proceed with replacing the compressor.


Updated on 14 February 2026 by ScegliAuto


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