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Old 02-15-2001, 04:59 AM
David C Klasse's Avatar
David C Klasse David C Klasse is offline
CheFrac is Back!
Join Date: Jan 2001
Location: Mission Hills in the City of San Diego
Posts: 2,352
My 2nd O2 sensor is bad (the one farther to the rear, the less important one?), still, yes! I think I've been getting worse gas mileage since this occurred. Is this common? Seems like it would be because it has to do with the air/fuel mixture???
Also, on cold nights, like tonight (outside temp 45 F), with the heat on low, going 50 mph or so, the engine would not reach a temp of 80 C. I kept it in third gear to try and get the engine a little warmer, but it wouldn't work? I know that the engine temps on C's do go up a bit higher than 80 when conditions prevail, but what about lower? Anyway, my question is, is this normal, and could it be related to the bad 02 sensor? Thanks GUYZ.
2006 E350 w/ 155k miles (Daily Driver)

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2003 E500 Brilliant Silver (Had 217k miles when totalled!)
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2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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