Mercedes-Benz GL450 air conditioning intermittently fails to cool and makes noise after compressor replacement on Mercedes-Benz GL450

Some Mercedes-Benz GL450 owners report experiencing intermittent cooling issues even after replacing the air conditioning compressor, which may indicate underlying system problems that need to be addressed. Additionally, some owners notice noise coming from the air conditioning system post-replacement, suggesting potential complications or improper installation that should be investigated to prevent further damage. Common problems reported include refrigerant leaks, electrical climate control issues, and compressor malfunctions, all of which can contribute to cooling failures and noise. To resolve these issues, it is advisable for owners to conduct a thorough diagnostic check of the air conditioning system. If problems persist or if owners are uncertain about the diagnosis, seeking assistance from a qualified mechanic or dealership is recommended to ensure effective solutions and proper functioning of the AC system.