Last post on Sep 06, 2007 at 8:17 AM
You are in the BMW 3-Series
What is this discussion about?
BMW 3 Series, Sedan
#1 of 28 Service engine light? New owner!
Mar 05, 2006 (3:45 pm)
2001 325i sedan 5 speed. Jst bought it last week. Future wife's car. I love it. Just don't know anything about it. I'm a hands on person. The "service engine soon" light came on and won't go off. The previous owner told us that it will come on if the gas cap is closed wrong. I think he's full of it. He probably disconnected the battery to hide the light til we bought it. Anyways, I would like to fix this. I called BMW to see if I can get service manuals like I have for my '01 Dodge 2500 truck. They don't have them, so I bought some service manual CD's off of ebay. Maybe those will help. Anyone know any ways to find a code without a scanner? Thanks, sorry for the long story.
#2 of 28 Re: Service engine light? New owner! [dmdzlpwr]
Mar 06, 2006 (9:42 am)
The "service engine soon" light came on and won't go off. The previous owner told us that it will come on if the gas cap is closed wrong. I think he's full of it.
Wrong. An OBDII engine management system will detect a loose or open fuel filler cap and trigger the CEL. That said, it may not be the reason your car's CEL is illuminated.
I bought some service manual CD's off of ebay.
Probably bootlegs. They may be up to date- but most likely aren't. Central Letter Shop sells the real thing. A good alternative is the Bentley E46 manual.
Anyone know any ways to find a code without a scanner?
No, but the Peake Research R5/FCXII-16 is dirt-cheap at $149.
#3 of 28 One More Thing...
Mar 06, 2006 (2:54 pm)
Any Autozone will read the trouble codes free of charge, but note that a dedicated BMW scanner-such as the Peake unit-will be more thorough.
#4 of 28 Code P0365
Mar 06, 2006 (5:01 pm)
Went to autozone. Gave code P0365 Camshaft Position Sensor B, Bank 1 circuit malfunction. Which one is it. I think I'm going to just get both to be on the safe side.
#5 of 28 Re: Code P0365 [dmdzlpwr]
Mar 06, 2006 (6:53 pm)
I think I'm going to just get both to be on the safe side.
Sensor B should be the exhaust cam position sensor. You might want to use the online ETK to ID the parts you need. I also strongly suggest joining the BMW Car Club of America, since many dealers and vendors offer up to a 25% discount to BMWCCA members.
#6 of 28 Re: Service engine light? New owner! [dmdzlpwr]
Apr 08, 2006 (10:31 am)
I purchased a 2002 330I new (now my son has it now with approx 65K miles). It had this intermittent service light problem after filling the gas tank. The first time it happened, I called the service manager and he was aware of the problem and told me what to do. He informed me it was a design glitch and replacing parts does not fix it according to two dealers. There is a pressure sensing system in the cars gas filler/tank that sets off the service light at times. You need to remove the cap for about 15 seconds and re-install it. This will relieve the pressure and the light will go off when the gas and tank cools, when it feels like. My light extinguished immediately or after setting in the garage overnight. This happened intermittently for the 1st year I owned the car. Than it went away for 3 years and than it happened once to my son. Go Figure. I insisted on having the sensor replaced, watched them do it, was told it would not help and it did not. That is my experience.
#7 of 28 Another Reason
Apr 13, 2006 (11:37 am)
Another reason the "Service Engine Soon" light comes on is as a reaction to a lower grade of gasoline being used than what is recommended. I personally had this problem a few weeks ago with my 2001 325i. As soon as I brought it in and the Service Manager asked me "what kind of gas have you been putting in it?" I blushed a deep red because I had been due to the high price of gasoline I had been "cheaping out" for awhile and using mid-grade gasoline (89 octane) and decided to push the envelope a little more and use regular (87 octane). Apparently the car protested. They ran diagnostics and put in a gas additive and all was fine. For best results, use only premium gasoline (if you can afford it). BMW recommends a minimum of 91 octane, so I was lucky to even get away with the mid-grade!
#8 of 28 325xi service engine light - p0344,p0369
Sep 18, 2006 (11:30 am)
The service engine light on my 2001 325xi is on and recently the car has started stalling randomly at low idle. It does restart, though with some difficulty. The codes are both p0344 and p0369, camshaft position sensor A and B circuits respectively. Is it possible that both the intake and exhaust sensors are bad or could it be a false read for something else? I don't want to throw expensive parts at it just to see if it fixes the problem. Yes, I've been cheaping out using 87 octane gas. Any suggestions?
#10 of 28 Service Engine Soon Light
Feb 20, 2007 (4:22 pm)
Hi everybody! I'm experiencing a problem aparently with my 323ci(2000) computer. For some reason when I insert the key and turned it to accesories the computer reads the inspection (15000 miles) reading but it is missing the oil change reading at all. As a result after starting the engine the engine service light came on. The problem just started today. I've changed the oil like two weeks ago and my dealer reset the computer readings with my own aftermarket reset tool that I bought on eBay few months ago. Any ideas why my car is not having an oil service reading? Also the inspection reading is not updating the reading while the car is running and always reads 15000.