10-10-2012, 04:47 AM
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Pedant and Curmudgeon
Location: Renton, WA
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Join Date: Oct 2010
Posts: 2,410
Mein Auto: 335d
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Quote:
Originally Posted by Snipe656
They must be using it as a test site for more than just that because I'd think different emissions equipment still would not explain why our computers are encrypted differently than theirs.
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Because we have a different DDE? On p.28 of ST180 - Advanced Diesel:
In contrast to the ECE version of the M57D30T2 engine, the US
version of the engine electrical system features following
differences:
• Engine control unit DDE7.3
• Preheating system with LIN-bus link and ceramic heater
plugs
• Additional OBD sensors
• Electrically operated swirl flap and EGR valve
• Additional actuators and sensors for the low pressure EGR
system.
Engine ControlModule
The new DDE7.3 engine control module is used on the US
version M57D30T2 engine. The DDE 7 version is used due to
the fact that the DDE 6 engine control module was not sufficient
to accommodate the addition of the SCR system as well as additional
OBD functions.
DDE 7 will be used on future generations of diesel engines
including the N57 which will be available sometime later.
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