Why is it still running or idling rough

2005 MERCEDES BENZ E320
55,000 MILES
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IAMSAL4710
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  • 1 POST
Have replaced spark plugs and front O2 sensors
Nov 28, 2011 at 5:06 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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