M-Class (W166) Produced 2012-2015

W166 OM642 ECU Location for Tune

Old Nov 15, 2022 | 09:21 PM
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Sisko's Avatar
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2012 ML350 Bluetec
W166 OM642 ECU Location for Tune

Hey all,

Got a 2012 ML350 Bluetec. Just received confirmation that my DPF delete pipe is coming this week, and need to unbolt the ECU and send in for tuning. I've been looking everywhere for it, on the car and online. Found multiple fuse boxes, but cannot find the ECU anywhere. Has anyone had experience finding and removing it? Thanks!
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Old Nov 16, 2022 | 04:57 PM
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Originally Posted by Sisko
Hey all,

Got a 2012 ML350 Bluetec. Just received confirmation that my DPF delete pipe is coming this week, and need to unbolt the ECU and send in for tuning. I've been looking everywhere for it, on the car and online. Found multiple fuse boxes, but cannot find the ECU anywhere. Has anyone had experience finding and removing it? Thanks!
Have you tried under the passenger side wheel well?
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Old Nov 16, 2022 | 05:17 PM
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2012 ML350 Bluetec
Originally Posted by SALES@OETUNING
Have you tried under the passenger side wheel well?
Yes! I ended up finding it there after removing some of the plastic covers.
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