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#1 (permalink) Old 03-16-2008, 08:47 PM
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325XI Gas Consumption

Hi Bimmers,

I just bought a 2002 325XI. It has 116000km on it. It burns around 15Lit/ 100km in the city. I don't think it's normal. Engine light is off and computer check says O2 sensors are fine. Any suggessions as to how to improve it.
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#2 (permalink) Old 03-16-2008, 08:53 PM
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Quote:
Originally Posted by FarhadBimmer View Post
Hi Bimmers,

I just bought a 2002 325XI. It has 116000km on it. It burns around 15Lit/ 100km in the city. I don't think it's normal. Engine light is off and computer check says O2 sensors are fine. Any suggessions as to how to improve it.
okay, for the US folks that is 15L is 4Gal and 100km is 62mi.

so basically you are getting 15mpg.

what are your average driving conditions?

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#3 (permalink) Old 03-16-2008, 09:35 PM
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another Q it hows your right foot?
als Check your air filter... and when was your last tune up?

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#4 (permalink) Old 03-16-2008, 09:38 PM
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and when was your last tune up?
true, it should have had an inspection 2 by now.

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#5 (permalink) Old 03-16-2008, 09:48 PM
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^ thats what I thought.... how does your indicator lights look? It might be time for a service!

1991 Ford Taurs SHO 5 Speed White on Tan
1996 Chevy Lumina LTZ Rep 3.4L
1992 318i Coupe parts car
1992 325i Ls1 swap with a T56 6 speed 12.2 quarter mile
1976 Mercedes Benz 300D with a Ford 5.0L Fuel Injected soon to be Modded
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#6 (permalink) Old 03-17-2008, 11:13 AM
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My drive to work is mainly through a hwy but during rush hours it even worse than city streets. I changed the air filter about two weeks ago. It has improved a little bit but that much that I was expecting. I have no abnormal indicator light on. I'm taking to my mechanic for tune up & detail inspection next week however prior to that I just wanted to have a couple of good ideas of what might be going wrong. Can it be the timing chain?
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#7 (permalink) Old 03-17-2008, 01:10 PM
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Can it be the timing chain?
No.

What is your mileage reading on your inspection idicator?

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#8 (permalink) Old 03-17-2008, 03:14 PM
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116000km driven ... 23500km to next inspection ...
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#9 (permalink) Old 03-17-2008, 03:35 PM
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116000km driven ... 23500km to next inspection ...
well i wonder if the last inspection was completed or if the light was just reset with no inspection done.

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#10 (permalink) Old 03-17-2008, 03:49 PM
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I've driven it for almost 2000km by now ... so far everything is quiet ... I'm not sure when the last detail inspection was done or better to say I'm not sure whether or not it was done ... Guess I have to rush it to my mechanic.
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#11 (permalink) Old 03-25-2008, 03:44 PM
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Quote:
Originally Posted by FarhadBimmer View Post
Hi Bimmers,

I just bought a 2002 325XI. It has 116000km on it. It burns around 15Lit/ 100km in the city. I don't think it's normal. Engine light is off and computer check says O2 sensors are fine. Any suggessions as to how to improve it.
I have a 2004 325Xi. Combined avg economy I get about 10.5 L per 100k (27.5 Mi to Cdn gallon). It breaks down into 9.0 l / 100k hwy and 11.5 l / 100km city (60/40 split city/hwy). If you are seeing 15, that is a bit high, even for a heavy foot. I would check with your dealership.

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#12 (permalink) Old 03-25-2008, 05:14 PM
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Thanks all for your advice. Just so you know, I checked the spark plugs, they seemed too old and out of tolerance. I changed them to NGK Irridium, it works a lot better now. Acceleration and power is significantly improved from what it was. I'm keep going through the list of inspection II and see whatelse is remained to do. Next stop is the rear rotors and brake pads.
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