SL/R231: How to turn off AC
Senior Member
Joined: Aug 2009
Posts: 427
Likes: 57
13 GL350, 14 SL550
My 2014 SL550 has a button on the climate control that says "AC" with a small red light.
Press this till the light goes off, and the climate control will operate as normal but will not enable the AC compressor. So if you're driving top down and don't want the AC to come on, you can push this button. Other functions including ventilation work completely normal other than the AC compressor not running.
Press this till the light goes off, and the climate control will operate as normal but will not enable the AC compressor. So if you're driving top down and don't want the AC to come on, you can push this button. Other functions including ventilation work completely normal other than the AC compressor not running.
Last edited by bha; Jun 12, 2019 at 07:21 AM. Reason: Wrong info, corrected.
Thread Starter
Newbie
Joined: May 2019
Posts: 11
Likes: 1
From: Naples, FL
2015 SL400
My 2014 SL550 has a button on the climate control that says "AC" with a small red light.
Press this till the light goes off, and the climate control will operate as normal but will not enable the AC compressor. So if you're driving top down and don't want the AC to come on, you can push this button. Other functions including ventilation work completely normal other than the AC compressor not running.
Press this till the light goes off, and the climate control will operate as normal but will not enable the AC compressor. So if you're driving top down and don't want the AC to come on, you can push this button. Other functions including ventilation work completely normal other than the AC compressor not running.
MBWorld Fanatic!
Joined: Dec 2010
Posts: 1,447
Likes: 334
From: South Florida
2013 SL550 (Lux Sport), 2006 CL55 AMG (Muscle). S550 (Wife's Sedan)
Notice there are (2) large black buttons on either side of the climate control area. The the large button on the left says 'Auto', while the large button on the right side says 'ZONE' .
When you look closely at the 'Zone' button on the right side, you'll see the word 'OFF' is printed on the LOWER PART OF THAT ZONE BUTTON.
Pressing 'OFF' (lower part of the Zone Button), WILL TURN THE ENTIRE CLIMATE CONTROL SYSTEM OFF, INCLUDING THE A/C AND THE FAN!.
Note #1 - This is normally, the button to press for 'Top Down' Driving on the 231, unless for some reason you actually prefer to keep your Climate Control System 'ON' for top down driving!....
Note #2 - When you are ready to turn your Climate Control System back ON again, just press the 'Auto' Button, (the large black button located on the left side of the 231's Climate Control Area).
When you look closely at the 'Zone' button on the right side, you'll see the word 'OFF' is printed on the LOWER PART OF THAT ZONE BUTTON.
Pressing 'OFF' (lower part of the Zone Button), WILL TURN THE ENTIRE CLIMATE CONTROL SYSTEM OFF, INCLUDING THE A/C AND THE FAN!.
Note #1 - This is normally, the button to press for 'Top Down' Driving on the 231, unless for some reason you actually prefer to keep your Climate Control System 'ON' for top down driving!....
Note #2 - When you are ready to turn your Climate Control System back ON again, just press the 'Auto' Button, (the large black button located on the left side of the 231's Climate Control Area).
Last edited by bob55; Jun 13, 2019 at 10:58 AM.
MBWorld Fanatic!
Joined: Feb 2004
Posts: 3,138
Likes: 223
From: Milton/Westport, MA USA
me: 2015 SL400 & 2015 ML400; wife: 2022 GLC Coupe; daughter: 2017 GLC SUV
Pressing 'OFF' (lower part of the Zone Button), WILL TURN THE ENTIRE CLIMATE CONTROL SYSTEM OFF, INCLUDING THE A/C AND THE FAN!.
Note: This is normally, the button to press for 'Top Down' Driving on the 231, unless for some reason you actually prefer to keep your Climate Control System 'ON' for top down driving!....
Thread Starter
Newbie
Joined: May 2019
Posts: 11
Likes: 1
From: Naples, FL
2015 SL400
Notice there are (2) large black buttons on either side of the climate control area. The the large button on the left says 'Auto', while the large button on the right side says 'ZONE' .
When you look closely at the 'Zone' button on the right side, you'll see the word 'OFF' is printed on the LOWER PART OF THAT ZONE BUTTON.
Pressing 'OFF' (lower part of the Zone Button), WILL TURN THE ENTIRE CLIMATE CONTROL SYSTEM OFF, INCLUDING THE A/C AND THE FAN!.
Note: This is normally, the button to press for 'Top Down' Driving on the 231, unless for some reason you actually prefer to keep your Climate Control System 'ON' for top down driving!....
When you are ready to turn your Climate Control System back ON again, just press the 'Auto' Button, (the large black button located on the left side of the 231's Climate Control Area).
When you look closely at the 'Zone' button on the right side, you'll see the word 'OFF' is printed on the LOWER PART OF THAT ZONE BUTTON.
Pressing 'OFF' (lower part of the Zone Button), WILL TURN THE ENTIRE CLIMATE CONTROL SYSTEM OFF, INCLUDING THE A/C AND THE FAN!.
Note: This is normally, the button to press for 'Top Down' Driving on the 231, unless for some reason you actually prefer to keep your Climate Control System 'ON' for top down driving!....
When you are ready to turn your Climate Control System back ON again, just press the 'Auto' Button, (the large black button located on the left side of the 231's Climate Control Area).
