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Old 06-04-2003, 11:55 AM
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KAMAL KAMAL is offline
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Join Date: Dec 2001
Location: Elk Grove, CA
Posts: 52
As far as O2 sensor is concerned, it should be replaced every 60,000 miles. This is from my 95 E420 maintenance manual.

One tip: apply hot lubricate paste (MB part # 000 989 76 51) on thread of lamda sensor.

good luck

Kamal Atwal
2005 Triumph Bonneville T100 (Black/white) [Sold]
2007 GL450 (Dersert Silver)
2009 Toyota Corolla (Metallic Silver)
2002 Tundra V8 - 2WD (Desert Sand)
1995 MB E420 (Silver Smoke) [crashed, now resting in peace at Silverstar Recycling Center]
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