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Mercedes ML 3.2 1998, Mercedes w124 250D 92'
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235 Posts
Discussion Starter #1
I was wondering if the replacement of the engines control module
in a 1998 vehicle with a newer one dating to 1999, same type engine 3.2 V6
is applicable regardless of the Bosch's part numbers?
The current module number is 261 207 150 and A112 153 0479,
thinking of replacing it with a 261 206 053 A025 545 8632
both are for the 6 cylinder motor, there is a 1 year manufacture difference.
 

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'05 ML350SE
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1,395 Posts
ESP was added in MY99 and that may have features which use the ECM. Something to question.
 

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Registered
Mercedes ML 3.2 1998, Mercedes w124 250D 92'
Joined
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235 Posts
Discussion Starter #3
Re

ESP was added in MY99 and that may have features which use the ECM. Something to question.
The ESP is controlled by a separate control module from what I see. I'd think in terms of the transmission module compatibility with the motor control module.
 

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'05 ML350SE
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1,395 Posts
From the 1999 press release:
" Electronic Stability Program: ESP monitors the vehicle's response to the
driver's steering and braking inputs to detect oversteer or understeer. If
sensors detect that a skidding condition is developing, ESP brakes individual
front or rear wheels and/or reduces excess power as needed to help keep the
vehicle going in the direction the driver is steering."
The reduction of excess power implies engine speed control which is why I raised this as a flag. I suspect others may pipe in and tell us how this is done.
 

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Super Moderator
99 ML430, 00 ML320, 05 E500 4matic Wagon
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22,138 Posts
The ESP simply over rides the the throttle input electronically to cut the power.
 
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