O2 sensor location
Joined: Dec 2011
Posts: 120,439
Likes: 17,006
From: Durham, UK
From the X250 Workshop Manual:
When viewed from the flywheel, the right-hand bank will be Bank-1 and the left-hand bank will be Bank-2.
The 3.0 litre exhaust system shows three HO2 Sensors - 2 Pre Catalyst (item 2) and one Post Catalyst (item 4):
(click on the image to enlarge it)
Logic suggests the Pre Catalyst sensors will be designated 1 and 2; the Post Catalyst will be 3.
Graham
When viewed from the flywheel, the right-hand bank will be Bank-1 and the left-hand bank will be Bank-2.
The 3.0 litre exhaust system shows three HO2 Sensors - 2 Pre Catalyst (item 2) and one Post Catalyst (item 4):
(click on the image to enlarge it)
Logic suggests the Pre Catalyst sensors will be designated 1 and 2; the Post Catalyst will be 3.
Graham
