A/C issues. Need advice please! - MBWorld.org Forums

May 30, 2012 | 08:18 AM

SteveL1

Thread Starter

Super Member

Joined: Jan 2006

Posts: 876

Likes: 41

From: ST. Louis, MO

'16 SL550, '18 Porsche Macan GTS

A/C issues. Need advice please!

Had the coolant fan replaced yesterday as it died and noticed on the way home that the A/C takes a while to get cold and also seemed to cut out every once in a while. Never got really cold even though the controls were set to the lowest temp. Also noticed an intermitent high pitched hissing kind of sound that only lasted about 3-4 seconds each time it happened. Kind of like the compressor is cyclying on and off.

Car has 104,000 miles on it so I'm wondering if it's time to rechrage the system and if getting the highly advertised AC Pro kit for around $45 would be a good start?

May 30, 2012 | 10:52 AM

LILBENZ230

MBWorld Fanatic!

Joined: Jul 2008

Posts: 8,384

Likes: 800

2019 G70 6MT & 2022 Ford Maverick XL

Have you recharged a system before? I have heard you can really mess it up if you get it wrong.. not sure I'd risk it.

May 30, 2012 | 01:14 PM

1st lite

Member

Joined: May 2006

Posts: 102

Likes: 3

From: Vancouver, BC

2002 C240

I would suggest you have the AC system & R-134a refrigerant level checked over by a reputable AC shop. As "LILBENZ230" mentioned, you could do more harm than good.