MBWorld.org Forums

Notices
S-Class (W222) 2014-2020

Coolant

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jul 3, 2024 | 02:22 PM
Share
  #1  
CharlyE500's Avatar
CharlyE500
Thread Starter
MBWorld Fanatic!
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2008
Posts: 4,411
Likes: 69
From: Socal, Chino
E55 2006 / CLS55 / S450 / Jag XKR2011
Coolant
Hello guys,

My S450 pop up some message to add coolant. Which coolant do you guys recommend ?
There are 2 coolant reservoir. One for engine/radiator and one for turbos. Can I use the same coolant ?

Thanks.
Reply
0
Old Jul 3, 2024 | 04:11 PM
Share
  #2  
vincheung's Avatar
vincheung
Super Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2016
Posts: 603
Likes: 275
From: NYC
S63, GLE580, BV250
Same coolant for both, I use the MB branded coolant which requires it to be mixed 50/50 with water. Other brands like Zerex and Peak are perfectly fine to use also just check the labels for "Mercedes." The center reservoir doesn't give off messages when low I believe, so it may be the main res thats reading low. I've removed my engine cover and never put it back on to make my periodic fluid checks easier.
Reply
1
Old Jul 4, 2024 | 06:59 AM
Share
  #3  
Tom in Austin's Avatar
Tom in Austin
MBWorld Fanatic!
5 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Aug 2017
Posts: 1,697
Likes: 522
2019 S560, 2015 Honda Civic Hybrid
When my system needed a few ounces, I just added distilled water.
Reply
1
Old May 7, 2025 | 04:49 PM
Share
  #4  
sleepings's Avatar
sleepings
Junior Member
Liked
 
Joined: Sep 2024
Posts: 30
Likes: 3
From: Europe
W205
Hey all!
Is the transmission cooler fluid the same as the engine one?

EDIT: Sorry, I just saw the second comment that they are the same!
Reply
0
Old May 9, 2025 | 04:36 PM
Share
  #5  
Badgertastic's Avatar
Badgertastic
Junior Member
Liked
 
Joined: May 2025
Posts: 19
Likes: 4
S550e
Originally Posted by sleepings
Hey all!
Is the transmission cooler fluid the same as the engine one?
Originally Posted by CharlyE500
Hello guys,

My S450 pop up some message to add coolant. Which coolant do you guys recommend ?
There are 2 coolant reservoir. One for engine/radiator and one for turbos. Can I use the same coolant ?

Thanks.
On the W222 S550, the main coolant circuit takes care of the engine and transmission. There's a secondary circuit for the turbos, and on the hybrids, there's a another one for the battery, and they're all independent with their own separate reservoirs.

The main reservoir for the engine/trans is under the passenger side panel, the turbo one is under the engine beauty cover, and the hybrid is under the driver side panel.

They all use the same MB Pink coolant.

Hope that helps!
Last edited by Badgertastic; May 9, 2025 at 04:39 PM.
Reply
1
Old May 11, 2025 | 11:50 AM
Share
  #6  
waterzap99's Avatar
waterzap99
Senior Member
Photogenic
Liked
Loved
Community Favorite
 
Joined: Jul 2023
Posts: 296
Likes: 91
S550 V8, CL600 V12, SLK32 AMG
This is a good Mercedes Coolant article. Just search for it....

Choosing The Proper Engine Coolant For Your Mercedes from FCP Euro
Reply
0
Old May 11, 2025 | 12:16 PM
Share
  #7  
W205C43PFL's Avatar
W205C43PFL
MBWorld God!
 
Joined: Dec 2019
Posts: 32,495
Likes: 6,345
Originally Posted by waterzap99
This is a good Mercedes Coolant article. Just search for it....

Choosing The Proper Engine Coolant For Your Mercedes from FCP Euro
Thank you, linking it as well: https://www.fcpeuro.com/blog/engine-...-your-mercedes
Reply
0

Trending Topics

Old May 11, 2025 | 01:25 PM
Share
  #8  
streborx's Avatar
streborx
MBWorld Fanatic!
5 Year Member
Photogenic
Community Builder
Top Answer: 1
 
Joined: Oct 2019
Posts: 5,156
Likes: 1,770
From: Colorado
G550
I use Zerex G40 (pink cap) that comes 50/50 pre-mixed -- about $20/gal jug.
Reply
0
MB World Stories

The Best of Mercedes & AMG

story-0

New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

 Verdad Gallardo
story-1

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

 Verdad Gallardo
story-2

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-3

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-4

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-5

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-6

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-7

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-8

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-9

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
Back to Subforum
S-Class (W222)
View Next Unread
3 error messages came out of nowhere (Pre-Safe)

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


You have already rated this thread Rating: Thread Rating: 0 votes, average.
Show Printable Version
Email this Page

Advanced Search

All times are GMT -4. The time now is 11:19 PM.

story-0
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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