E-Class (W210) 1995-2002: E 200, E 220D, E 240, E 290TD, E 300TD, E 200, E 240, E 280, E 320, E 420, E 430 (Wagon, Touring, 4Matic)

96 E320 Overheating...

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jun 22, 2012 | 04:57 PM
  #1  
martythebrit's Avatar
Thread Starter
Junior Member
 
Joined: Jun 2010
Posts: 23
Likes: 0
1996 E320
96 E320 Overheating...

I figured this out, it was the thermostat which I replaced. However, the car used to run just over 80 degrees, how it runs just below 90 degrees. After doing more research I've found there are several different thermostats, rated for several different temperatures, anywhere from 167 to 192 degrees. My logic suggest that cooler would be better for the engine. What's the difference between the different temperatures?

Thanks,
Marty.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
Reply
Old Jun 22, 2012 | 06:06 PM
  #2  
RichardM98's Avatar
MBWorld Fanatic!
 
Joined: Oct 2007
Posts: 1,564
Likes: 19
From: SoCal
98 Brilliant Silver E320 Wagon
Manufacturer's specify a coolant temperature for best results with each engine. It's best to use the correct thermostat and correct ratio of antifreeze to water. At that point over-heating is usually caused by fouling or a faulty recirc. pump.
Reply
Old Jun 23, 2012 | 05:17 AM
  #3  
renault12ts's Avatar
Super Member
 
Joined: Oct 2010
Posts: 724
Likes: 41
From: UK
W215 CL500 2005
Originally Posted by martythebrit
I figured this out, it was the thermostat which I replaced. However, the car used to run just over 80 degrees, how it runs just below 90 degrees. After doing more research I've found there are several different thermostats, rated for several different temperatures, anywhere from 167 to 192 degrees. My logic suggest that cooler would be better for the engine. What's the difference between the different temperatures?

Thanks,
Marty.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
As above, its not a question of logic, but fact. As a thermostat goes bad they usually allow the engine to run cooler than specified. So, it may be that your old stat was doing this and the new one is correct. You need to find out the correct temp.

If the stat is holding the temp constant at stand still and when moving, then its working. I think just below 90, is just about right.
Reply
Old Jun 23, 2012 | 10:42 AM
  #4  
RobertG's Avatar
MBWorld Fanatic!
 
Joined: May 2005
Posts: 2,825
Likes: 3
From: New Jersey
things with and without wheels
Picking the correct thermostat also depends on where you are using your vehicle (cooler climates or closer to the equator)
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 03:00 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