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Re: Check Engine Light - 99 Z3 2.3 (long) (archive)

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Posted by Rob W on June 09, 1999 at 22:42:56:

In Reply to: Re: Check Engine Light - 99 Z3 2.3 (long) posted by Bruce on June 09, 1999 at 22:30:08:

: : My girlfriend recently leased a new Z3 2.3. It's a gorgeous car and a joy to drive, but ... it's been back to the dealer for service three times so far (it has about 1700 miles on the odometer). The check engine light came on the first time at around 700-800 miles. She took the car in to her dealer, and one of the service managers told her (get this!) that she was putting the gas cap on wrong. Well, this didn't really insult or infuriate her the first or second time, but after the third time (she got the car back on Friday and the light was back on Saturday), she got pretty torqued. Somewhere along the line they have told her that it might be the charcoal cannister or some "loose hoses". She has had it in for the third time, and so far the light has stayed off.

: yes the most common cause of a check engine light is the gascap not getting put on properly...another cause is leaving the key in the ignition when fueling....the charcoal cannister is another problem...also could be the O2 sensors...or some sort of leak in the fuel system...check engine lights are emission related problems (the reason it says "check engine" is so that people go to the dealer and don;t ignore the problem- THANKS CARB!)

: : As far as I can tell, the service manager she's dealing with is a condescending nitwit. If there is some problem with the gas cap gasket not seating (?) and causing a trouble code, then replace the gasket. I can't understand their game, but I'd sure like to hear if anyone out their has had a problem with their Z3 and the engine light coming on repeatedly. I'm not familiar with BMWs - I just clunk around in my Toyota pickup (which, BTW, has never had a trouble code in 106,500 miles).

: is your truck OBDII? i doubt it

The last time the light came in, the car had not been refueled, so I would think this narrows it down to the other items you'd mentioned. Wouldn't their diagnostic equipment be able to narrow it down to a specific area?

Under the heading of "not that it matters". My truck is a 95' w/CA emissions. It has 2 oxygen sensors (one off the exhuast manifold and one just before the cat, I believe). It also has a charcoal cannister. But, alas, I do not know what OBDII stands for, so I can't answer your snide question in response to my snide remark.

Thanks for the quick response and the good info.


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