service engine soon?

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#1
Hi, I got Service Engine Soon light came on yesterday. MY car is 02 325i, and just under 24000 km. Is this normal? I also noticed coolant level already dropped below minimum after I topped it up a month ago.
 

bmwrocks

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#2
SES light can come on for a variety of reasons. The most common is a loose gas cap. Check that first. Just reseat it and see if the light goes out after awhile.

The coolant level is almost certainly a leak somewhere. Is there any on the ground where you park it? If it is leaking and it gets on a hot part of the motor, it will smell like maple syrup. Do you smell anything like that? I would have the dealer look at the coolant prob anyway. A low coolant won't set off the SES I don't think. Have them check that too if the gas cap doesn't fix it. If they hook into the system while the light is on, they will be able to tell right away what is the cause. Also codes are stored after a time so there is history also. Thing is, the history goes all the way back to the beginning of your car's life.

Good Luck.
 

dan462000

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Lindsay
#3
Hi,
I have 2000 328i (64,000). I had same problem. After the third time I noticed a milkshake-creamy looking stuff in the radiator. It turns out that I had a blown gasket & a cracked cylinder head. After arguing with the unprofessional people at the extended warranty and seven weeks later I finally got it repaired. Hope that's not your problem, but something to think about if it hasn't been fixed yet.
Dan462000
 

epj3

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#4
dan462000 said:
Hi,
I have 2000 328i (64,000). I had same problem. After the third time I noticed a milkshake-creamy looking stuff in the radiator. It turns out that I had a blown gasket & a cracked cylinder head. After arguing with the unprofessional people at the extended warranty and seven weeks later I finally got it repaired. Hope that's not your problem, but something to think about if it hasn't been fixed yet.
Dan462000
Thats no good!! Our pontiac montana (which is a royal piece of crap) is in right now getting it's head gasket replaced. 60k miles... [bash]
 
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Morristown, NJ
#5
i had somethin like that happen to me today. I hit a damn pot hole and then i saw the service engine soon light come on and the acceleration was very weak, the car felt all weird. the engine sounded like a diesel engine sounds. when i got to a light i turned the car off and then turned it back on and the service light went off and the car felt normal. i hope nothing serious happened
 
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Scottsdale, AZ
#6
SES light was on in mine and it turned out to be a bad cam position sensor. There are so many different things that will kick on those generic "service engine" or "check engine" lights.....have to get hooked up to an OBDII reader to see what code it's throwing....
 
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Massachusetts
#9
Hi,

Just purchased a 2001 330xi. After about 4 gas fill-ups the SES light came on. Appears to be loose gas cap from what I have read and sure enough SES light went out after latest fill-up (reseating gas cap).

-Chuckalott
 

Hajduk

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Cali
#10
I had the same problem, but the solution to fix it was to replace the cam regulator for about $500. Talk about ghetto, the dealer said the cam regulator is the new word for differential. I dont even think its possible to burn out a differntial. And to pay $500 to replace some crappy microprocessor is just rediculous. Some things should just stay mechanical.
 


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