M651

[Scottneil1]

I all.
I think my engine is the M651 so does anyone now the location of the exhaust back pressure sensor and is there any videos showing the replacement of it
Thank you

 

[AMGeed]

This might help.

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[Oleks1992]

I all.
I think my engine is the M651 so does anyone now the location of the exhaust back pressure sensor and is there any videos showing the replacement of it
Thank you

It's at the top right side of the engine at the back, it'd got a 27mm nut on the sensor and it's located near bracket where engine cover clips in at the back

 

[Jobsworth]

Engine is an OM651. Mercedes engines are OM for diesel, M for petrol. Sorry to be a pedant