S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

'07 S550 - Climate Control Front Seats/ Cooling Seat Function

Old Oct 9, 2018 | 12:53 PM
  #1  
S70Houston's Avatar
Thread Starter
MBWorld Fanatic!
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2015
Posts: 1,975
Likes: 265
From: Sacramento, CA
2018 GLC300 4Matic; 2008 ML550 4Matic; 2004 C320
'07 S550 - Climate Control Front Seats/ Cooling Seat Function

Hopefully I will be able to explain my issue so it will make sense.

Recently, my Passenger Side Front Seat has developed a noise once the Climate Control/Cooling feature for the seat is turned on. Everything works and one can hear the fan blowing once switched on.

However, here my issue:
- When switching on the cooling mode, one can hear a noise like a "click", then goes away, sometimes sooner than other times, but the noise never keeps on going for a long period of time. When going down to the next lower setting #2, no noise. When switching from #2 to #1 (One blue LED illuminated), SOMETIMES a clicking noise. When moving from #1 to OFF, almost every time the clicking sound.

Has anyone else experienced this? Is maybe the fan blade rubbing inside at times, but not always? Is there a relay which could possibly be on its way out? WHAT'S THE FIX?

As mentioned, the cooling feature does work, I can hear the fan run, but this noise drives me crazy due to my OCD.

Any input is greatly appreciated, thanks very much in advance.
Reply
Old Oct 16, 2018 | 03:33 PM
  #2  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,630
From: North Scottsdale, AZ
'71 Pinto

Attached Files
File Type: pdf
LI91.30-P-048290_Ver_1.pdf (32.4 KB, 103 views)
Reply
Old Oct 16, 2018 | 03:43 PM
  #3  
S70Houston's Avatar
Thread Starter
MBWorld Fanatic!
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2015
Posts: 1,975
Likes: 265
From: Sacramento, CA
2018 GLC300 4Matic; 2008 ML550 4Matic; 2004 C320
THANKS VERY MUCH konigstiger.

Yes, it is indeed a grinding noise, I will have to try to explain better in the future.

Reply

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

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 01:01 PM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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