× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P2272 Diagnostic Trouble Code Discussion for February 2019

Heated Oxygen Sensor (Bank 2 Sensor 2) Stuck Lean

Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P2272
Help Request Posted
2009 Mercedes-Benz E350 4Matic 3.5L MIL Lamp on VIN: WDBUF87X89
P2272: LR O2 Aging. I've been struggling with this one for a couple of months. This check engine light will pop on every couple of weeks. I thought the heater codes were straight forward. I tested the resistance in both rear O2 heaters and they were both open so I replaced th...
February 12, 2019