Dumb stupid seatbelt buzzer

[BlkBird]

Okay, this is going to be so simple it will be embarrassing. How do I permanently disable the bloody seatbelt buzzer? I want it to shut the *** up!

It goes off when I am driving and go over a bump, it goes off when the seatbelts are on, it goes off when ever it wants to!

One suggestion was to pull the center of three relays. These are located in the trunk, mounted on the "firewall" in front of the driver. Done. Stupid buzzer still goes on. Next suggestion was to pull the plug, literally, under the drivers seat. Simple two wire plug. Did that. Buzzzzz.

Now we are getting desperate. Two mechanics who know their business have failed to shut that thing off. It sounds like it is coming from behind the clock. I believe it is the seatbelt buzzer, not any sort of 'key-in-ignition" reminder. How do I kill this thing? And how do I find it without removing the radio?

1989 911 Turbo CAB

[Kurt B]

You'll get at it from the front trunk. That's how I found my door buzzer--and I'd guess they're in the same place (or at the same mechanism actually). In fact you will for sure because the gauges can be accessed from there directly.

Lean over and listen for it, then put your hands on the black blocks you'll see in there (on driver's side) and feel for the one that's vibrating. I don't think you'll have to take down the cover that goes over the wiring and fan, but it's only 4 bolts that hold it on.
Pull it out, and you're done. One of the first thing every 911 owner needs to do is rid himself of that thing!

P.S. Since you have a Turbo Cab, maybe you should post pictures of it while you're at it!

Good luck

[Superman]

Like my friend Kurt says, the buzzer is a rectangular relay located between the brake master cylinder booster and the oil pressure gauge. I removed mine by opening the drivers' door and the trunk, and reaching around past the MC booster (my arms are not thick if I don't have my cape on) until I felt the one that was vibrating. That thing is in the glove compartment now, and it doesn't buzz at all.

[BlkBird]

Guys,

So it isn't the center of three relays located in the trunk, mounted on the "firewall" in front of the driver? I yanked that one already and the damned buzzer still goes off intermitantly.

And the buzzer is smart too. Smart enough to know I am looking for it - so it doesn't go off unless I am sitting in the car. Maybe I can trick it with a bag of sand or something. Then when it comes on.... wham!

[steve911]

if it only comes on when you are sitting in the seat, sounds like you may have a short somewhere. as others have said, if you turn the ignition 'on' (but don't start the car) and then open the door, you 'should' hear the buzzer in the front trunk.

i did not have to remove anything else - just found the offending vibrating relay and removed it. sits in the glove compartment along with my extra dme relay.

[Kurt B]

Nice how Superman alluded to my (incoherent) instructions but then used all the right terminology! I gotta get this terminology down!


Anyway, I wouldn't mind a buzzer that was less buzzy. Maybe a nice chimer type?

I can't imagine 993s have that obnoxious sound. Anyone know if we can replace it with something non-rice, but less annoying?

[Phoenix]

Please forgive my ignorance here, but couldn't you just disconnect the seat belt wiring under the seat? My'73 has the light but the wires under my seats have loooong been disconnect by the PO. I have NO plans to reconnect them. I HATE that buzzzzzzzz

[Superman]

Yeah, maybe it could be reconfigured to play "Highway Star" by Deep Purple. I'd plug it back in if it did that.

My '83 has not seat-weight switch but perhaps the later ones did. I'd agree that the sure way to resolve this is to find a way to make the buzzer buss while you're standing near the fender, and then find the one that is vibrating and pull it. Another posted suggested that access can be had through the oil pressure gauge hole. I'd bet that's absolutely correct, and mercifully our gauges are a snap to remove. I love those German engineers!

[BlkBird]

Guys,

The hunt for the elusive buzzer continues! Just went for a drive and sure enough it went off. And then when I opened the bonnet (love that British terminology), the buzzer went off. Must know where I am relative to the car.

As to disconnecting the wiring under seats, I did that already on the drivers side. I wonder if there is another matching set on the passengers side?

[Kurt B]

Why isn't it buzzing just from the doors being open? Is that a separate buzzer? If you don't hear a door buzzer too, then you've got some other wiring problems.

Anyway, just lift up the matting that covers the (superman insert word for the center of the chassis where ebrake is) from the rear where the shift coupler hatch is, and you'll see all the wiring going to and from the seat belts.

I suppose you can just cut all those out as well if you're going to tackle the problem that way. Otheriwise, maybe you should hook everything back up so the buzzer goes off with the doors and then find the buzzer while it's buzzing 'cause your door is open!

[BlkBird]

Kurt & Superman,

Are we having fun yet? I know I am! I just crawled around in the bonnet area pulling out carpeting. To follow Kurt's suggestion, I looked at the firewall area directly in line with the front latch. Regrettably all I can see is the vent/airbox. But Kurt is right about the location (I think) - the buzz noise eminates from behind the clock area.

I also went poking around the relay area directly in front of the oil guage, etc, on the bonnet side. I see four relays, three that look like something out of 2001 Space Odessy, and a fourth unit closer to the drivers door. Plus I just noticed a fifth black box that is slightly forward of the other four relays.

I would love to just start yanking relays out but you have to figure Porsche put them in there for a reason. If I could find the buzzer.... but that is in the passenger comparment. Silly question - how can I remove the clock "guage"? Someone said it just snaps in. Mine sure doesn't want to snap out!

Thanks guys,

[steve911]

all later year 911 gauges pull straight out - they are held in solely by the rubber friction ring. you can pull them out by
1) grasping/twisting from the dash
2) using small flat blade screwdriver to 'gently' pry them out (put something like a paint stirrer behind the screwdriver blade so as not to ding the dash
3) push out the gauge(s) from inside the trunk/bonnet.

Can't speak for your '89, but my '85 seat belt buzzer was a relay in the trunk. I turned the key to on, opened the door (buzz!) and found the offending relay in the trunk. pulled it out and no more buzz! there was nothing buzzing inside the passenger compartement.

[BlkBird]

Honest guys! This ain't nothing to do with the doors (unless there is a short). This damn buzzer goes off when you turn the ignition on. It sometimes shuts off, and it sometimes don't. It sometimes starts buzzing as you drive down the road, and then stops of its own accord.

I have yanked out the center of the three black monolith relays in the front compartment. I have unplugged the two-wire connection under the drivers seat. And the damned buzzer still goes off!

But it is sneaky. It knows I am looking for it! And it stops when I come hunting. I am thinking my Mossberg may be the best solution for the problem. A little collateral damage to be sure - but it should stop the buzzer!

[Moses]

Forget the wires, forget the relays. You need to find the ACTUAL BUZZER. The noisemaker itself.

Unfortunately, your car appears to be equipped with the rare MIGRATORY buzzer. They are VERY hard to pin down. Here's your best bet:

First, understand that all migratory buzzers are male. And promiscuous. (hence the constant roaming). Put a well polished FEMALE relay receiver (gold plated connectors) in the glovebox. Leave the glovebox door open. When you hear frantic buzzing coming from the glovebox, slam the door shut. Never open it again.

If that fails, get out the Mossberg.