DIY - Mercedes SL55 (R230) hvac blower fan fix or swap

[@limonene10]

Thank you for the video!

[@AaronsTalks]

Hi, mine is hissing, do you know what might be causing? It sounds like it's coming from the center vents. Also does it with fan blowing on it's own without the A/C on

[@jvakos]

if yours is making a hissing sound and not blowing cold air you likely are low on refrigerant. you can buy one of those AC recharge cans from an auto parts store and try to recharge it

[@Stratblooz]

Do you have a parts number?