R-Class (W251) Produced 2006-2013: R320CDI, R350, R420CDI, R500

I have 2 differential pressure sensors?

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Old 05-29-2018, 09:30 PM
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2008 GL320 cdi
I have 2 differential pressure sensors?

I have 2 located on a bracket behind the passenger air box, is that correct? I thought ther was only 1. I have a 2010 r350 Diesel. Both fed by same line but bracket has 2. Looks like one is a newer part and other is earlier model, dates are different too. Older one is from before my 2010. Which one do I replace.
Old 06-08-2018, 10:27 PM
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2008 GL320 cdi
Thanks for all the help. Turns out there is an overlap in the years that requires an old sensor and a new one mounted together in a bracket that connects the two together.
Old 12-14-2019, 04:49 PM
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2010 R350 Bluetec
Originally Posted by Tpr211
I have 2 located on a bracket behind the passenger air box, is that correct? I thought ther was only 1. I have a 2010 r350 Diesel. Both fed by same line but bracket has 2. Looks like one is a newer part and other is earlier model, dates are different too. Older one is from before my 2010. Which one do I replace.
I pulled the passenger air box and there's nothing behind it on my 2010 R350 Blutec. Looked under the car and every location depicted on other models but can't find the damn dpf differential pressure sensor anywhere. Can't find an actual picture of the location on a R350, just every other model with this engine. Any ideas?

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