CLK-Class (W209) 2003 on: CLK 270 CDI, CLK 200K, CLK 200 CGI, CLK 240, CLK 320, CLK 350, CLK 500, CLK 550 [Coupes & Cabriolets]

Mercedes CLK500 Coolant Check Level light on

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Feb 5, 2017 | 11:50 PM
  #1  
Humzam's Avatar
Thread Starter
Junior Member
 
Joined: Feb 2017
Posts: 23
Likes: 0
From: Utah, USA
Mercedes Benz SL
Exclamation Mercedes CLK500 Coolant Check Level light on

I replaced the engine on my 2005 CLK500 and now i have a coolant check level light on and as well as the battery visit workshop light. All the auxiliaries are original from the older engine. Coolant is full and sensor is good, same with windshield washer fluid and sensor, and temperature sensor. Fan and fan control module are good too. Any ideas on what could be causing these lights? Any help would be highly appreciated.
Reply
Old Feb 6, 2017 | 09:58 PM
  #2  
Rudeney's Avatar
MBworld Guru
 
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
Check voltage - you need 12.6v at rest, no less than 11v during cranking, and 14v at idle. If you don't have this, start by diagnosing the battery and/or alternator.
Reply
Old Feb 6, 2017 | 10:41 PM
  #3  
Humzam's Avatar
Thread Starter
Junior Member
 
Joined: Feb 2017
Posts: 23
Likes: 0
From: Utah, USA
Mercedes Benz SL
Yes I have at least 12.7 when the car is off, 14.2+ when the car is running
Reply
Old Feb 7, 2017 | 11:46 AM
  #4  
Humzam's Avatar
Thread Starter
Junior Member
 
Joined: Feb 2017
Posts: 23
Likes: 0
From: Utah, USA
Mercedes Benz SL
Looks like no one has experienced this issue before?
Reply
Old Feb 13, 2017 | 01:02 PM
  #5  
Humzam's Avatar
Thread Starter
Junior Member
 
Joined: Feb 2017
Posts: 23
Likes: 0
From: Utah, USA
Mercedes Benz SL
So I figured out the coolant level issue, bad coolant tank, the magnet in the tank was missing. New tank and light is gone. Only problem now is the intermittent battery visit workshop light. Battery is at 14.2 volts when running and about 13.2 when the car is turned off so I really don't know what is causing it. It only comes on once in a while and if I turn the car off and on again it's gone. Any advise would be appreciated.
Thanks
Reply
Old Feb 15, 2017 | 03:26 PM
  #6  
JakeMS3's Avatar
Senior Member
10 Year Member
 
Joined: Jul 2014
Posts: 307
Likes: 0
From: Waldorf Maryland
2008 CLK550
Originally Posted by Humzam
So I figured out the coolant level issue, bad coolant tank, the magnet in the tank was missing. New tank and light is gone. Only problem now is the intermittent battery visit workshop light. Battery is at 14.2 volts when running and about 13.2 when the car is turned off so I really don't know what is causing it. It only comes on once in a while and if I turn the car off and on again it's gone. Any advise would be appreciated.
Thanks
How were you able to troubleshoot the coolant tank to know a magnet was missing? Did you just completely comb thru the entire cooling system and take every part off? Did you do it or a shop diagnosis caught it?
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 12:49 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