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Old 05-01-2003, 04:28 AM
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Join Date: Mar 2003
Location: San Diego, CA
Posts: 47
'95 E320 (W124) Gas Mileage

My 1995 E320 Sedan gets about 13mpg. Should I be worried? I do about 70% City/30% Highway Driving. My fuel filter has been changed recently. I have always used Chevron Premium, noted the cleanest gas in my area. Is there anything else I can do to increase my gas mileage? Thanks.
'95 E320 Sedan w/224K Miles (W124)
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Old 05-01-2003, 10:43 AM
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Join Date: Oct 1999
Posts: 1,562
>tune up
>proper tire inflation pressures
>driving style

imho- 17mpg average is quite low for city driving in such a W124

'94 E320 Coupe
'94 E500
'92 300E 2.6
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Old 05-11-2003, 10:26 PM
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Join Date: Nov 2001
Location: Bay Area
Posts: 38
That sounds really low, I am getting ~21-24 on the same ratio of hw/local driving. Sounds like new plugs or coli replacement. Start with the obvious, check air pressure.
95 E320 Coupe Black - 70,000 miles with Parchment interior. Stock through out
93 400E Dark Blue - 65,000 miles Sold to my dad
86 300E Gold(yuck!!!) 126,000 miles- Sold, a really fun car with a lot of memories
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Old 05-11-2003, 10:34 PM
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Join Date: Mar 2003
Location: San Diego, CA
Posts: 47
Thanks everyone. I took it in to my mechanic, and he said the O2 (Oxygen) Sensor was completely dead. He replaced and I am now actually getting a rhythm. Burning pure fuel might just have a little to do with the bad gas mileage As soon as a full tank runs through, i'll post my new gas mileage. I am already noticing a huge difference.
'95 E320 Sedan w/224K Miles (W124)

Last edited by tdhenning; 05-13-2003 at 02:58 AM.
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Old 05-11-2003, 11:16 PM
Join Date: Dec 2001
Location: Southern California, U.S.A.
Posts: 8,509
FWIW, a huge drop in fuel economy is 99% of the time caused by a bad O2 sensor.
Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".
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Old 05-11-2003, 11:30 PM
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wjm wjm is offline
Join Date: Dec 2000
Location: Suburban Detroit, MI
Posts: 692
Hmm... I thought when the O2 sensor went out, the check engine light goes on. Was yours on? Probably not, as you probably would have mentioned it.
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Old 05-12-2003, 12:02 AM
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Join Date: Mar 2003
Location: San Diego, CA
Posts: 47
No, my Check Engine light was not on. However, when I start my car, it does flash to indicate the bulb is working. Thanks
'95 E320 Sedan w/224K Miles (W124)
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