ESP module Kaput! (supposedly) - Mercedes-Benz Forum

 
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post #1 of 6 (permalink) Old 10-16-2013, 02:17 PM Thread Starter
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Question ESP module Kaput! (supposedly)

:sigh: So, my actual module is supposedly junked.
What if...I bought a module with the same exact part number from the same exact car (options and all) and installed it? Would it still need coded? Please say no! Who could code it if not? I some reason doubt the dealership would
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post #2 of 6 (permalink) Old 10-19-2013, 03:56 PM Thread Starter
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Fixed!!!! Sweet mother! Finally....so yes a used ESP module of the exact same part number will work, as for others I dunno. Found it on E-bay $59.99. Dealer wanted $1,670.87
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post #3 of 6 (permalink) Old 10-19-2013, 04:39 PM
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Nice find. Thank you for posting your success.
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post #4 of 6 (permalink) Old 10-19-2013, 11:58 PM
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ESP operation might still be somewhat compromised. The point is that the ESP control unit is adapted to the specific sensors in the car (B24/2 ESP lateral acceleration sensor and N64 ESP yaw rate sensor).

According to MB workshop instructions, the control unit needs to be adapter when one of these sensors is changed. In this case both sensors have been changed (as seen by the new control unit).

This control unit does not need any other coding like change of parameters or VIN coding, which was clear from waco's experience already.

The sensor calibration consists of a simple "road test", this test just needs to be initialised first.

If ESP seems to react properly at corners etc. perhaps the sensors in this car are not much different from the donor car.
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post #5 of 6 (permalink) Old 10-20-2013, 12:19 AM
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DB keeps on amazing me. This is not really information any car enthusiast can drop from his sleeve.
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post #6 of 6 (permalink) Old 10-20-2013, 03:32 PM Thread Starter
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Quote:
Originally Posted by Diesel Benz View Post
ESP operation might still be somewhat compromised. The point is that the ESP control unit is adapted to the specific sensors in the car (B24/2 ESP lateral acceleration sensor and N64 ESP yaw rate sensor).

According to MB workshop instructions, the control unit needs to be adapter when one of these sensors is changed. In this case both sensors have been changed (as seen by the new control unit).

This control unit does not need any other coding like change of parameters or VIN coding, which was clear from waco's experience already.

The sensor calibration consists of a simple "road test", this test just needs to be initialised first.

If ESP seems to react properly at corners etc. perhaps the sensors in this car are not much different from the donor car.
I read somewhere something along those lines, but not nearly as well said nor explained. So with that in mind, wifey and I headed out on an empty stretch of road (Industrial Park). We had a whole list of tests...
A.10mph---No fault
B.40mph---No fault
.......
Y. Try to slide sideways, ESP engaged---No fault
Z. Jam on brakes on wet road, ABs engaged---No fault
We then let it "sleep" for 30 minutes and started the testing over...
My reasoning was more to eliminate variables if it did throw a fault, but I was also hoping it would "learn"
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