S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

What is this for....

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Feb 17, 2010 | 08:07 PM
  #1  
benica's Avatar
Thread Starter
Member
 
Joined: Feb 2010
Posts: 78
Likes: 0
From: Between Honolulu and Offutt.
1998 and 2002 SL 500, 2014 E550 Convertible
What is this for....

92/93 500 SEL....
On the A/C vent below the middle glove box are two buttons...one is red and the other blue...obviously..hot and cold....but what for? Turning on the A/C...system is cold without pressing the blue button...anyone care to explain what it's purpose is? Thank you!
Reply
Old Feb 19, 2010 | 02:57 AM
  #2  
gaazmon's Avatar
MBWorld Fanatic!
Shutterbug
Liked
Loved
Community Favorite
 
Joined: Aug 2005
Posts: 3,085
Likes: 59
From: Los Angeles
2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
the way i understood it was: let's say you had the temp on 70F. if you pressed the blue button, it would blow COLD air from the middle to vents even though the side ones were still just cool.

my e320 has a blue roller knob which can be set to off which makes the center ones blow the same as the sides vs when i put it up all the way to max blue, it becomes very cold. this was removed for the E cars for 2005.
Reply
Old Feb 19, 2010 | 03:01 AM
  #3  
benica's Avatar
Thread Starter
Member
 
Joined: Feb 2010
Posts: 78
Likes: 0
From: Between Honolulu and Offutt.
1998 and 2002 SL 500, 2014 E550 Convertible
Thank you! I got a response!
Reply
Old Feb 20, 2010 | 12:49 AM
  #4  
gaazmon's Avatar
MBWorld Fanatic!
Shutterbug
Liked
Loved
Community Favorite
 
Joined: Aug 2005
Posts: 3,085
Likes: 59
From: Los Angeles
2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
Originally Posted by benica
Thank you! I got a response!
ur welcome. lol, things are slow on this corner of the forum. glad i could help. *sigh, my 94 S420 was awesome.
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 11:16 PM.

story-0
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-1
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-2
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-3
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-4
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-5
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-6
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE
story-7
Mercedes Teases Updated EQS With Steer-By-Wire and a Yoke

Slideshow: The 2027 update adds a fully digital steering system, revised styling, and potential charging upgrades as the company looks to revive interest in the luxury EV.

By Verdad Gallardo | 2026-04-04 10:24:38


VIEW MORE
story-8
8 Mercedes Models With Poor Reliability Records

Slideshow: From problematic air suspensions to early dual-clutch transmission issues, these specific models and years stand out as the least dependable modern Mercedes vehicles.

By Verdad Gallardo | 2026-03-26 18:08:10


VIEW MORE
story-9
Magnificent New Mercedes-Maybach S-Class Revealed: 12 Things to Know

Slideshow: Mercedes-Maybach has refreshed the S-Class with new lighting signatures, AI-driven software, and even more elaborate rear-seat luxury.

By Verdad Gallardo | 2026-03-25 18:01:51


VIEW MORE