check engine light on BMW 325i

Average mileage: 89,717 (30,000–156,456)
3 model years affected: 1995, 2004, 2006
9 people reported this problem
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Viewing 1 - 6 of 6 problem details
I've had this problem (and 2 Gas Caps) for about 20,000-25,000 miles, and two BMW Service Reps while the car was under Warranty said to me, "Oh, that's just the Gas Cap". Then I went in last month, and the new Service Rep was all upset, "Egad, you're SVC ENG SOON LIGHT IS ON, we better do something NOW!!!" So I told her what her 2 or 3 predecessors had told me while the car was still under Warranty. Anyone know the true answer?
Unable to keep gas pressure in gas tank caused by fuel filler neck won't seal.
2004 BMW 325i 30,000 mi,
BMW Ft Pierce told me that I should just ignore it.
Gas smell when car is parked in garage. I have replaced the fuel cap.
2004 BMW 325i 156,456 mi,
Was told by mechanic tank needed to be replaced
2006 BMW 325i 110,000 mi,
Bought my 06' BMW 325i used at 110,000 miles. When I bought the car the check engine light was not one, however the next day it came on. I took it to a BMW dealership here in town and they replaced the water pump and thermostat. About a $1,400 repair. Three weeks later light is back on. Take it back they replace the thermostat again free. Three weeks later lights back on. Took it back and this time replaced a sensor on my radiator. Cost another $100 and just three weeks after I got it back guess what...yep! Light is back on! Still haven't figured out the problem is.