[Tom ings]

Hi experts!

This is my first post on here, so apologies if I break any of the unwritten rules, or make any newbie faux pas.

I am in the process of removing the engine for a complete overhaul of my 2 litre bug (2000 X-plate), but I cannot disable the anti-theft system. I’ve looked everywhere for the fuse box and relay diagrams, and none of the images I can find quite match what I’m seeing in my car.

In all of the information I have seen so far, it suggests that on the top of the relay box in position H or J there should be the relays for the anti theft...but there is nothing in those positions at all. In fact, the 4 relay positions at the top seem to be labelled A through D, instead of F through J.

I have removed a number of other relays but still the alarm goes off all the time. I don’t think any of the fuses in the side panel will help, but I’m starting to lose confidence that I can solve this...so please help!

I will even consider cutting a fewchosen wires if I have to...but i just need to disable the alarm so I can continue with my engine overhaul, without waking the whole street!

thanks!

 

[billymade]

So, the typically issue with the alarm going off randomly; is the door lock module microswitches are bad (a replacement; will fix this issue), thus the alarm gets confused and it goes off, when it shouldn't. A scan with a VW scan tool; will normally, show a vw factory trouble code and this will indicate the fault/issue.

If you are in the middle of a repair; disconnecting the battery, would kill the alarm and electricity, to the car (until you fix the problem). You could possibly disconnect the alarm horn, fuse or relay and reconnect it later, after issues are resolved.

 

[billymade]

The alarm horn; is located, in the plenum area.

Volkswagen Workshop Manuals > New Beetle > Body > General body repairs, exterior > Front door, central locking > Central locking > Central locking and convenience system - Assembly overview

New Beetle > Volkswagen Workshop Manuals > Body > General body repairs, exterior > Front door, central locking > Central locking > Central locking and convenience system - Assembly overview

workshop-manuals.com

Volkswagen Workshop Manuals > New Beetle > Body > General body repairs, exterior > Body front > Body - front > Removing and installing plenum chamber cover

New Beetle > Volkswagen Workshop Manuals > Body > General body repairs, exterior > Body front > Body - front > Removing and installing plenum chamber cover

workshop-manuals.com

 

[billymade]

Sent from my iPhone using Tapatalk

 

[billymade]

Volkswagen Workshop Manuals > Beetle L4-2.0L (AEG) (2000) > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Horn Relay > Component Information > Locations

Beetle L4-2.0L (AEG) (2000) > Volkswagen Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Horn Relay > Component Information > Locations

workshop-manuals.com

On a USA/North American spec New Beetle; 2000 model with the 2.0L,
the relay is position # 9- Alarm Horn Relay (53)

I don't know, if this is the case; for a UK spec new beetle, you could try pulling relays, until the alarm horn, stops beeping.

 

[Thejarhead]

If you are going to remove the engine to rebuild it, you absolutely MUST not only disconnect the battery but you will also need to remove the battery. Alarm problem solved.

 

[Tom ings]

If you are going to remove the engine to rebuild it, you absolutely MUST not only disconnect the battery but you will also need to remove the battery. Alarm problem solved.

The alarm seems to have its own power source, because removing the battery causes the alarm to trigger, and it won’t stop.

 

[Tom ings]

Volkswagen Workshop Manuals > Beetle L4-2.0L (AEG) (2000) > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Horn Relay > Component Information > Locations

Beetle L4-2.0L (AEG) (2000) > Volkswagen Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Horn Relay > Component Information > Locations

workshop-manuals.com

On a USA/North American spec New Beetle; 2000 model with the 2.0L,
the relay is position # 9- Alarm Horn Relay (53)

I don't know, if this is the case; for a UK spec new beetle, you could try pulling relays, until the alarm horn, stops beeping.

Ok my beetle there was no relay in position 9. I removed all the other relays I could reach but still no good.
As mentioned in my other reply, removing the battery doesn’t help either as it seems to have its own peer source.

 

[billymade]

How, can the horn work with the battery disconnected? I know, of no other power source; other, then the battery, in the engine compartment..... what am I missing?

 

[Smileybug]

Is it maybe an aftermarket system? I agree, I don't know of any sort of alternate power source for the alarm. Never had a problem with it after the battery was disconnected or removed.

 

[Thejarhead]

Then the only way I can think of an alarm going off is an aftermarket system. You might check with the previous owner and see if he installed something.

Even that must have a power source that can be disconnected.

 

[Tom ings]

How, can the horn work with the battery disconnected? I know, of no other power source; other, then the battery, in the engine compartment..... what am I missing?

That’s what I thought, until I removed the battery and the anti theft alarm started going off for the next 10 minutes.
I’ll try removing the battery again on Sunday, but I’m pretty sure it will happen again. Thanks for the advice though

 

[Tom ings]

Then the only way I can think of an alarm going off is an aftermarket system. You might check with the previous owner and see if he installed something.

Even that must have a power source that can be disconnected.

Ok thanks for that. Good to know that you guys are just as confused as me.

 

[Tom ings]

Is it maybe an aftermarket system? I agree, I don't know of any sort of alternate power source for the alarm. Never had a problem with it after the battery was disconnected or removed.

I don’t think so, but I will check with previous owner to confirm. Thanks for the advice

 

[anilkayn]

If you are going to remove the engine to rebuild it, you absolutely MUST not only disconnect the battery but you will also need to remove the battery.



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