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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 07-17-2009, 07:14 AM
stox111us stox111us is offline
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Mein Auto: 2000 BMW 328i
2000 BMW 328i,airbag&seat belt light,cruise contrl,radio stopped working at same time

I have a BMW 328i year 2000. All of a sudden my radio went dead, cruise control doesn't work and the seat belt and airbag light in the instrument cluster stays on while I am driving. It all happened at once. I checked the fuse box under the glove compartment but they all are ok. I think one of the relay switches went bad. I need a diagram of the Relay switches which tells the function of each switch. One may control all. I opened the relay box under the hood but there is no diagram under the cover. I already called a couple of dealers and they told me that they have this info on the computer and I have to bring my car in and it will cost an arm and a leg. Does someone know the answer to this or is it some other issue with the problem? Bently manuals are expensive but it may have the diagram. Can I just get the diagram?

Thanks

AG
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  #2  
Old 07-17-2009, 07:16 AM
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Bucknekkid Bucknekkid is offline
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How old is your battery ?...
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Old 07-17-2009, 07:17 AM
stox111us stox111us is offline
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I just replaced it three weeks ago OEM
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Old 07-17-2009, 08:48 AM
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Bucknekkid Bucknekkid is offline
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The first step I would take would be to double check your battery connections...Hopefully others will chime in with suggestions...
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  #5  
Old 07-17-2009, 09:04 AM
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MalibuMafiaV MalibuMafiaV is offline
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Try resetting your ECU and checking your battery.
Check your fuses as well.
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Old 07-17-2009, 09:12 AM
stox111us stox111us is offline
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Thanks for your help. This is helpful. The problem happened a week after I had my battery replaced. If battery connection is loose then how come other instruemnts are working?
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Old 07-17-2009, 09:36 AM
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MalibuMafiaV MalibuMafiaV is offline
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Quote:
Originally Posted by stox111us View Post
Thanks for your help. This is helpful. The problem happened a week after I had my battery replaced. If battery connection is loose then how come other instruemnts are working?
Because it's getting power just but enough or to much.
You don't have a after market sound system by any chance do you?
with a after market amp?
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BMW 2006 M5 - REALLY LOUD
Audi S4 2000 Stage 3 - Dat turbo spool
BMW 2000 3-series - Supercharged Because race car SOLD
Maserati 2004 M128 GT - HREs/tint/straight piped SOLD
BMW 2006 M3 - stock - SOLD
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Old 07-17-2009, 09:57 AM
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This happened to me after taking a turn pretty hard the day after I replaced my battery. The connections were not on tight enough. I'd start looking there.
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Old 07-17-2009, 11:28 AM
stox111us stox111us is offline
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Thanks all. My Radio and CD changer is OEM, as a matter of fact everything in my car is OEM. I will check the battery conections again. since I had a new one installed and problem happened after that. I am also going to check the relays, as soon as I get a diagram. If there are any other suggestions, please let me know.
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