R 350 BLUETEC (251.125) V6-3.0L DSL Turbo (642.870) (2010)
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Oxygen Sensor: All Technical Service Bulletins
Engine Controls - Oxygen Sensor Wire Harness Connector
Date:
October 1, 2009
Order No:
S-B-49.10/13
Group:
49
SUBJECT:
MY-All, Engine 642 in Models 164.122 /125 as of 515320 and up to 517212;
164. 122 /125 as of 517484 and up to 517877; 221; and 251.
Replacing the Oxygen Sensor Connector Housing
When replacing the oxygen sensors on the aforementioned vehicles, replace the engine wiring harness connector housing as well.
Procedure
1. Unpin the lines from the old connector housing.
2. Install the lines into the new connector housing.
3. Insert the oxygen sensors and install according to specifications.
Parts Information