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#1
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Brakes Came On All Of A Sudden
I have a 2001 ML320 with 53K miles and (Long story short) the brakes came on all of a sudden and engine would not go above 1000 RPM and would apply the breaks and ABS when I would try to speed up above 1000 RPM's.
3 different scenarios: Rainy going down the hill slow with debris on the road, Sunny and hot going 25 MPH straight without breaking, and one time going 45 MPH into a curve on the freeway. Luckily I am still alive to tell this and I did not get involved in an accident. Took the car to a local shop and they replaced the brake light switch (code: C1200) and drove it for 100 miles and it hasn't done it anymore. I wasn't feeling confident driving the car anymore so I got all the codes from the local shop and took the car to the dealership. All the codes cleared by that shop were these: ESP C1200 Break Light Switch ESP C1120 (showed up 3 times) Yaw Rate Sensor BAS C1025 Fault between ESP Control Unit and CAN and BAS Communication AAM B1858 AAM B1040 AAM B1783 (showed up twice) Don't know what these codes stand for The experience mechanics at the dealer told me that they didn't "see" the Yaw Rate Sensor causing the problem (even though it showed up 3 times) and they pretty much said : "drive it and see if it happens again" The problem is, if it happens I could die... and I don't want to just sell the car because that is totally unethical. Please help!!! |
#2
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A bad Yaw rate sensor can cause the brakes to self-apply.
IF there is a code there must be a problem. Not a cheap part!
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#3
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hey MB Doc
Do you agree with the mechanics when they say you need to do a bunch of reseting after installing a Yaw Rate Sensor and that it needs to be installed by them only and reseted by them only?????? I want to do it myself, the part is already over 500 dollars.
Thanks |
#4
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FOR correct operation...requires the ESP computer to go into a special "test" mode to properly calibrate the new sensor.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
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