SL55/63/65/R230 AMG: SL55 Brake Performance
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07 SL55 With 030 PP 02 S55 06 GX470
SL55 Brake Performance
ATTENTION SL55 DRIVERS: Has anyone experienced the front wheels locking up and skidding when braking hard. My 2004 SL55's front wheels routinely lock up and leave rubber on the road during hard braking. The engineers at MB say it is normal and the car is functioning as designed.
Please provide feedback. Thank you!
Please provide feedback. Thank you!
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'19 GT 4 63s ,'17 Bentley Bentayga, '06 Ford GT
There was a SBC brake recall I was notified of mid last year that affected my '03 build SL55. The description of the problem kind of sounded like the lockup issue you're referring to. Maybe worth checking it out in case it is what's affecting yours.
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2004 SL55, 2005 E500 Wagon
Originally Posted by s55sl55driver
My 2004 SL55's front wheels routinely lock up and leave rubber on the road during hard braking. The engineers at MB say it is normal and the car is functioning as designed.
Jim
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07 SL55 With 030 PP 02 S55 06 GX470
The wheels lock up and skid when I push the brakes approximately 1/2 of the full travel of the pedal. I am not talking about around town driving; conversely I am not talking about driving like a maniac and slamming my foot through the floor. I drive the car hard and brake aggressively to loose speed before I enter a turn. Yesterday it was about 32 degrees and I had the car out around 7am. The front tires were locking up all morning long. You can feel the brakes letting go and re-locking up almost in slow motion. Not the 30 times per second that the brochure says. In fact the brochure states that the system “prevents wheel lock up". This car leaves skid marks on the asphalt all the time.
When I was driving yesterday, I had to constantly think about how hard I was squeezing the brakes so they wouldn't lock up and skid.
Several MBUSA engineers have looked at the car they say the car is behaving as designed. As I have said before in the forums, I don't understand how they can say that front wheel lock up is an acceptable characteristic in a high performance AMG car.
My s55 does not lock up in the same conditions on the same roads.
When I was driving yesterday, I had to constantly think about how hard I was squeezing the brakes so they wouldn't lock up and skid.
Several MBUSA engineers have looked at the car they say the car is behaving as designed. As I have said before in the forums, I don't understand how they can say that front wheel lock up is an acceptable characteristic in a high performance AMG car.
My s55 does not lock up in the same conditions on the same roads.
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07 SL55 With 030 PP 02 S55 06 GX470
Originally Posted by OzSL55
There was a SBC brake recall I was notified of mid last year that affected my '03 build SL55. The description of the problem kind of sounded like the lockup issue you're referring to. Maybe worth checking it out in case it is what's affecting yours.
Thank you! I will ask.
#6
brakes
Never hapend before but i hate sl brakes. I got 15'' 8 piston brembo brakes it feels so mutch beter then stock. They improved probebly by 25%. But tthe stock brakes never locked up on me. just take the car to the dealer and go on the test drive with them.
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07 SL55 With 030 PP 02 S55 06 GX470
Dealer gave me a 2006 SL55 to test
Originally Posted by MeridianTuners
Never hapend before but i hate sl brakes. I got 15'' 8 piston brembo brakes it feels so mutch beter then stock. They improved probebly by 25%. But tthe stock brakes never locked up on me. just take the car to the dealer and go on the test drive with them.
My dealer was kind enough to let me take one of their sl55 for a few days. That car did the same thing.
At about 55-60% of the travel of the brake pedal in both cars the front tires would flat spot on the highway at highway speeds. I took the car to 90mph and then made sure no one was behind me on the highway, then I got on the brakes to simulate taking speed deep into a turn braking hard before turn in. If i got on the brakes quick and hard they would lock up right away..If I start slow but kept going the tires would flat spot as well.
On monday I am testing an 06 sl55 with the Nurburgring Calibration (AMG Performance Package) to see if the brakes are less sensitive.
My thoughts are twofold: First a car with ABS should not have ANY wheel lock up and second is the fact that it occurs in the two cars I have driven in the mid point of the brake pedals travel not at the botttom.
I am thinking of shipping the car down to Renn Tech to have Hartmut and his team see waht they can do with it.
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'19 GT 4 63s ,'17 Bentley Bentayga, '06 Ford GT
Originally Posted by s55sl55driver
Are you saying that no matter how hard you lay into your brakes the front tires do not flat spot???
My dealer was kind enough to let me take one of their sl55 for a few days. That car did the same thing.
At about 55-60% of the travel of the brake pedal in both cars the front tires would flat spot on the highway at highway speeds. I took the car to 90mph and then made sure no one was behind me on the highway, then I got on the brakes to simulate taking speed deep into a turn braking hard before turn in. If i got on the brakes quick and hard they would lock up right away..If I start slow but kept going the tires would flat spot as well.
On monday I am testing an 06 sl55 with the Nurburgring Calibration (AMG Performance Package) to see if the brakes are less sensitive.
My thoughts are twofold: First a car with ABS should not have ANY wheel lock up and second is the fact that it occurs in the two cars I have driven in the mid point of the brake pedals travel not at the botttom.
I am thinking of shipping the car down to Renn Tech to have Hartmut and his team see waht they can do with it.
My dealer was kind enough to let me take one of their sl55 for a few days. That car did the same thing.
At about 55-60% of the travel of the brake pedal in both cars the front tires would flat spot on the highway at highway speeds. I took the car to 90mph and then made sure no one was behind me on the highway, then I got on the brakes to simulate taking speed deep into a turn braking hard before turn in. If i got on the brakes quick and hard they would lock up right away..If I start slow but kept going the tires would flat spot as well.
On monday I am testing an 06 sl55 with the Nurburgring Calibration (AMG Performance Package) to see if the brakes are less sensitive.
My thoughts are twofold: First a car with ABS should not have ANY wheel lock up and second is the fact that it occurs in the two cars I have driven in the mid point of the brake pedals travel not at the botttom.
I am thinking of shipping the car down to Renn Tech to have Hartmut and his team see waht they can do with it.
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