Power sounder.

Holy Count · 13th June 2012, 18:27

Just to make sure before I blow my eardrums out !!! Does the 75 have a power sounder that's likely to go off when I disconnect the battery ??

If so, what's the procedure to disarm ... and do these ( like some other marques power sounders) have a tendenct to self combust when getting past their useful life ??

Bolin · 13th June 2012, 18:55

Quote:

Originally Posted by Holy Count

Just to make sure before I blow my eardrums out !!! Does the 75 have a power sounder that's likely to go off when I disconnect the battery ??

If so, what's the procedure to disarm ... and do these ( like some other marques power sounders) have a tendenct to self combust when getting past their useful life ??

I think you are referring to the BBUS, which was optional (perhaps standard on some models, not sure).

It will go off if you disconnect the battery with the alarm armed. To prevent this, ensure the car is unlocked before disconnecting the battery. Simple

Not sure about self-combusting, though, sounds like an extreme anti-theft measure. Not sure what insurance companies think about this.

HarryM1BYT · 13th June 2012, 18:56

Some models are fitted with an alarm sounder which has its own battery. It should not be triggered by your disconnecting the main car battery, though I understand tampering with the sounder can trigger it.

Holy Count · 13th June 2012, 19:38

Quote:

Originally Posted by Bolin

I think you are referring to the BBUS, which was optional (perhaps standard on some models, not sure).

It will go off if you disconnect the battery with the alarm armed. To prevent this, ensure the car is unlocked before disconnecting the battery. Simple

Not sure about self-combusting, though, sounds like an extreme anti-theft measure. Not sure what insurance companies think about this.

Used to have an Omega Elite -- power sounders on those are renowned for bursting into flames when the internal battery corrodes ( and have been known to take the whole car with them !! )--- which is why most Omega owners remove the unit !!

Thomas · 13th June 2012, 22:02

Moved to technical help forum.

Bolin · 13th June 2012, 22:40

Quote:

Originally Posted by Holy Count

Used to have an Omega Elite -- power sounders on those are renowned for bursting into flames when the internal battery corrodes ( and have been known to take the whole car with them !! )--- which is why most Omega owners remove the unit !!

Yikes.... our cars have a BMW unit, perhaps google to see if they have a similar problem, not heard of suchlike.

You may only have an alarm horn though, rather than power sounder (BBUS).

13th June 2012, 18:27	#1
Holy Count Loves to post 75 CONNOISSEUR CDT SE AUTO Join Date: May 2012 Location: Taunton Posts: 380 Thanks: 0 Thanked 2 Times in 1 Post	Power sounder. Just to make sure before I blow my eardrums out !!! Does the 75 have a power sounder that's likely to go off when I disconnect the battery ?? If so, what's the procedure to disarm ... and do these ( like some other marques power sounders) have a tendenct to self combust when getting past their useful life ??

13th June 2012, 18:56	#3
HarryM1BYT This is my second home 75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010 Location: Leeds Posts: 17,273 Thanks: 2,160 Thanked 2,061 Times in 1,586 Posts	Some models are fitted with an alarm sounder which has its own battery. It should not be triggered by your disconnecting the main car battery, though I understand tampering with the sounder can trigger it. __________________ Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money.

13th June 2012, 22:02	#5
Thomas This is my second home MG6 1.8T GT SE Join Date: Mar 2009 Location: Falkirk Posts: 9,510 Thanks: 106 Thanked 173 Times in 128 Posts	Moved to technical help forum.