Brake Temerature

whitenemesis

Senior Member
Joined
Dec 21, 2006
Messages
17,978
Reaction score
40
Your Mercedes
CLS55 AMG '05
How and where does the CLS measure brake temperature?
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
367
Age
89
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
Why would the car want to do or know that as there are no sensors on the calipers for measuring any temp.
 
OP
whitenemesis

whitenemesis

Senior Member
Joined
Dec 21, 2006
Messages
17,978
Reaction score
40
Your Mercedes
CLS55 AMG '05
  • Thread Starter
  • Thread starter
  • #5
Why Malcolm? Because of this message in the cluster...

"Brake overheated Drive on, but with even greater care"

Thanks for the input :rolleyes:
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
367
Age
89
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
Why Malcolm? Because of this message in the cluster...

"Brake overheated Drive on, but with even greater care"

Thanks for the input :rolleyes:

I have never seen it, and I do not recall anyone else ever having the message up, so at least the car has told you how to drive.

Just shows what happens when a powerful car gets in the wrong hands. :shock:
 
OP
whitenemesis

whitenemesis

Senior Member
Joined
Dec 21, 2006
Messages
17,978
Reaction score
40
Your Mercedes
CLS55 AMG '05
  • Thread Starter
  • Thread starter
  • #7
I have never seen it, and I do not recall anyone else ever having the message up, so at least the car has told you how to drive.

Just shows what happens when a powerful car gets in the wrong hands. :shock:

Jumping to the wrong conclusion again Malcolm ....
 
N

npuk

Guest
Should have got EBC red stuff pads Peter, then you wouldnt have to hold down the brake pedal as long and the brakes wouldnt over heat. Or maybe all that brake dust is affecting the brake cooling. ;)
 

Gkinghorn

Senior Member
Joined
Jul 25, 2009
Messages
2,808
Reaction score
180
Location
Bournemouth
Your Mercedes
E350 CDI Cabriolet - 2011
==========================
 
Last edited:

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
367
Age
89
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
Jumping to the wrong conclusion again Malcolm ....

Not at all,, it just so happens that I never got the message up, and I cannot recall anyone else ever asking about it.

Nothing in the hand book either.

At least the car is telling you how to handle the problem, so slow down, way up the situation ahead.:D
 
OP
whitenemesis

whitenemesis

Senior Member
Joined
Dec 21, 2006
Messages
17,978
Reaction score
40
Your Mercedes
CLS55 AMG '05
  • Thread Starter
  • Thread starter
  • #11
Page 376

If you don't know, perhaps best not comment ...
 
OP
whitenemesis

whitenemesis

Senior Member
Joined
Dec 21, 2006
Messages
17,978
Reaction score
40
Your Mercedes
CLS55 AMG '05
  • Thread Starter
  • Thread starter
  • #12
Should have got EBC red stuff pads Peter, then you wouldnt have to hold down the brake pedal as long and the brakes wouldnt over heat. Or maybe all that brake dust is affecting the brake cooling. ;)

Now, now Nikhil, behave! ;) :D
 

Anon E Mouse

Senior Member
Joined
Mar 23, 2013
Messages
48
Reaction score
0
Location
Kent
Your Mercedes
W211 E55K
Cut and pasted from a US forum...

"Let me clear some items up about this break over-temp warning. It is first of all NOT something that stores an error code so your insurance company wont be beating your door down about this -- like those people know about the computers in an MB anyhow.

Second of all there is no temp sensor in the vehicle at all regarding the brake temps. The car has an algorithm that it uses to determine when the car COULD be getting near the point of brake fade. It is not a simple number of brake applications but instead it measures the force of the application, the speed at which you are traveling, the delta value in speeds etc and then when the car thinks you have asked too much of the brakes, the light comes on and says hey watch out bone head! I have seen an E320's breaks burst into flames before the brake overtemp light came on so clearly there is no sensor reading pad, rotor or fluid temps. This info came from the head instruction for MB tech training.

Finally you will never feel brake fade on these cars until the pad has gone right past its operating range and is indeed cooked and done -- no more stopping friction. The SBC system compensates for fade by applying more brake force as the system registers a less effective brake pad. As the car sees brake applications not slowing the vehicle accordingly, it increases the force of the applications to compensate. This makes the system work harder and it feels as if the brakes are indeed free from fade. In reality the SBC system is simply giving you a false feeling of security and will eventually reach a point of total failure if you don’t allow the brakes to cool down. This feature seems like a hazard not a safety feature but I think MB figures most owners will never keep pressing hard once the algorithm triggers the light saying hew brakes are getting to hot mr. driver man."
 

Pathfinder

Senior Member
Joined
Dec 21, 2011
Messages
814
Reaction score
18
Age
63
Location
Gourock
Your Mercedes
CLC 220 CDi Sport Diesel Year 2008
Why bother. Maybe we should start monitoring the wiper blade or door lock temperature?
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
367
Age
89
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
Should have got EBC red stuff pads Peter, then you wouldnt have to hold down the brake pedal as long and the brakes wouldnt over heat. Or maybe all that brake dust is affecting the brake cooling. ;)

That is true, its fact :D:D
 

Naraic

Moderator
Joined
Mar 4, 2010
Messages
10,686
Reaction score
1,274
Your Mercedes
2005 CL500.
Posts don't get deleted if they stay on topic, and are not personal.
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
367
Age
89
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
I almost answered the same with regards to Red stuff having a higher temp rating but I thought the demon Post delete would strike again !!

It did Simon when I said the same thing earlier :D just plain facts that if the ceramic pads can stop you in a shorter distance, the less chance of over heating the system.

With SBC there is 160 bar at each front wheel, I have no idea what the pressure is on a standard vacuum aided system. Interesting that expansion of the fluid is allowed for.
 


AMF Automotive - We are an independent Mercedes-Benz and AMG specialist located in Paddock Wood, Kent, with full Mercedes Diagnostic equipment. We offer a full portfolio of tuning options for AMGs and can cater for all your Mercedes needs.
Tel: 0203 384 4644www.amfmercedes.com/
Top Bottom