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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Tue, Dec-07-2010, 11:48:43 PM   #1
mredwin25
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Default Does the E46 M3 have a gas cap malfunction light

If the gas cap is bad, does the check engine light come on or is there a separate light for just the cap?
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Old Tue, Dec-07-2010, 11:56:21 PM   #2
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Check engine light.
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Old Wed, Dec-08-2010, 12:22:58 AM   #3
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why does the owners manual mention that there is a gas cap light?
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Old Wed, Dec-08-2010, 01:17:01 AM   #4
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Depends on the year of the car as to whether the check engine light covers the gas cap or a seperate light is required.

Take the gas cap off and drive around and see what happens. The worst you will have to do is have the codes cleared...
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Old Wed, Dec-08-2010, 01:24:59 PM   #5
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I forget to put my gas cap back on after leaving a gas station last week. A light came on the dash telling me to "check the gas cap"..........smart car.
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Old Wed, Dec-08-2010, 01:30:29 PM   #6
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Quote:
Originally Posted by M.Williams View Post
I forget to put my gas cap back on after leaving a gas station last week. A light came on the dash telling me to "check the gas cap"..........smart car.
^^^^^ What he said! There is a separate light for the fuel filler cap. In most cars it is the check engine light though. I lost my gas cap in Daytona Beach and drove all the way back to Jacksonville with that light on. No ill effects on the car though!
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Old Thu, Jul-12-2012, 08:17:16 AM   #7
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Default Re: Does the E46 M3 have a gas cap malfunction light

mine did this today. i got a gas and i guess i didnt turn the gas cap all the way until it clicked. after driving about a block i get this idiot light on the dash "check gas cap" when i got home, i tighten the gas cap and drove around the block. the idiot light turned off after owning this car 8yrs, first time i've ever seen that light. i never even knew it existed
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Discussing Does the E46 M3 have a gas cap malfunction light in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)