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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 12-08-2016, 09:32 AM   #1
shadenfroh
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Join Date: Dec 2016
Location: Bulgaria
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My Ride: 316i
New owner: seat belts off, no warning

Hey there all, first post for me and I must say you've built a fantastic resource here!

Got a 2000 E46 316i (1.9l I4) a few months ago, did a PPI (no faults), got a few wear items replaced. Also removed some dark film from the turn signals, since they were about to be used for the first time

Two things however are slowly eating away at my sanity. I brought the car to be coded for auto-lock-unlock and no-seat-belt bulb on / sound off. Auto-lock worked, but we just couldn't get it to unlock on key out, so we disabled both. Seat belts were a complete no-go. No matter what I do, the warning bulb goes out by itself after a few seconds. The dude did his software thing twice and assured me that everything is correct as far as coding goes - it just doesn't behave.

Can you help me here - what am I looking at? Some rice-boy bypass device mounted on the seat belts or the occupancy sensor? Faulty buckle/pretensioner?

I want to thank anybody who chimes in - this car is a daily driver for my parents and I just want to make it as stock and safe as possible.

Last edited by shadenfroh; 12-08-2016 at 09:33 AM.
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Old 12-11-2016, 02:37 PM   #2
shadenfroh
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Anyone...?
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Old 12-11-2016, 03:27 PM   #3
paraklas
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There's no option to unlock on key out, I believe this is the way all E46 behave. Auto lock yes, auto unlock, no.
What's the problem with the seatbelts? It's normal for the warning to go out after a few seconds, means everything is fine..
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Old 12-11-2016, 03:29 PM   #4
zemprofils
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You can't code e46 to unlock when pulling key out. Same with seatbelt light. Been there, done that.

Sent from my E5823 using Tapatalk
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Old 12-11-2016, 04:02 PM   #5
shadenfroh
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Thanks guys for clearing my confusion regardless auto-unlock. I guess double-pull it is then :-)

Seat belts... Well, here's my train of thought: almost 100% of cars I've driven/travelled in (excluding old ones with no belt light at all) have the light on when you or your passenger have the belt off. This may or may not be accompanied by a friendly (or ghastly) chime. As for 100% of the cars that don't - I've asked the owner and they confirmed that it was programmed to specifically not warn them because it annoys them.

In my car the light goes off a few seconds after the engine has been started - regardless of whether or not I have the belt on... And if I take my belt off the light does not come on.

If this is the correct behaviour and no E46 out there nags its owner for not wearing a belt... then what's the point of the warning light at all?

I consider this a matter of safety, so again - a big thank you!

Last edited by shadenfroh; 12-11-2016 at 04:04 PM.
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Old 12-12-2016, 01:52 AM   #6
paraklas
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Originally Posted by shadenfroh View Post
Thanks guys for clearing my confusion regardless auto-unlock. I guess double-pull it is then :-)

Seat belts... Well, here's my train of thought: almost 100% of cars I've driven/travelled in (excluding old ones with no belt light at all) have the light on when you or your passenger have the belt off. This may or may not be accompanied by a friendly (or ghastly) chime. As for 100% of the cars that don't - I've asked the owner and they confirmed that it was programmed to specifically not warn them because it annoys them.

In my car the light goes off a few seconds after the engine has been started - regardless of whether or not I have the belt on... And if I take my belt off the light does not come on.

If this is the correct behaviour and no E46 out there nags its owner for not wearing a belt... then what's the point of the warning light at all?

I consider this a matter of safety, so again - a big thank you!
Newer cars do chime/indicate when you forget the seatbelt. E46 doesn't, at least with the european coding.
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Old 12-12-2016, 02:33 AM   #7
shadenfroh
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That cleared my confusion alright. I was sure somebody has messed with it at some point so I'm glad to know it's normal.
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Old 12-12-2016, 03:53 AM   #8
blarf
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Right. I've got my E46s coded so that the indicator light goes on when the driver's belt is unbuckled, but the chime remains disabled. If you're curious, you can hook up a scan tool and see if the body module thinks the seat belt is (un)buckled.
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do you park near poodles?

Last edited by blarf; 12-12-2016 at 03:53 AM.
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Old 12-12-2016, 04:00 AM   #9
shadenfroh
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Then I'm back to square one, I guess. That's exactly what I wanted and I was assured it was coded right, but the light just wouldn't come on.

Have you done the coding yourself? Does it involve a simple setting or perhaps a region change? I doubt that there's a difference in the seat belts themselves between Europe and the states.
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Old 12-12-2016, 04:19 AM   #10
blarf
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I did the coding myself with NCS Expert, but something like BMW Scanner should work too. I did not change the region from USA, but I expect that this is how the Euro region may function? In any case the belts themselves probably are similar, but almost certainly not identical due to regulatory differences between Europe and the US. The stock US setting is to chime and light (which drives me nuts). What are you using for coding?
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Old 12-12-2016, 04:23 AM   #11
shadenfroh
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I got in touch with a dude who offers coding various BMW models. He had a laptop, a bunch of cables and adapters and the software looked ugly, so I assume it was official BMW software
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