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Discussion Starter #1
I need to replace my upstream oxygen sensor.
The local MB dealer sells it for $350 !!!!!!

I can get a good WBO (Wide Band Oxygen sensor :twisted: ) for $50 that I use on my race cars.

What is the reference number for this Mercedes WBO ?
How many wires do it have ?

Is there a cross reference in Danso, Bosch or other brands ?
 
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