Alarm goes off when it rains - Puma?

ianl · Post by **ianl** » Wed Oct 21, 2020 7:36 am

Hi,
When it rains my alarm goes off. From searching this great forum it seems this is a common problem which BMW have a PUMA for. I guess that is some sort of problem database? The fix is something to do with wrapping a sensor in the door (or doors?) with tin foil but I can’t find any specifics about it. I would prefer to try this myself rather than asking a dealer.

Anyone got any more details about the fix please?

Many thanks,
Ian

jabber · Post by **jabber** » Wed Oct 21, 2020 9:49 am

Hi I had this mod done to the first z4 I owned several years ago the dealer applied some thing to the inside of the door skin it was done under warranty but I know other members have been told by other Main Dealers there is no such mod. I did have a copy of the modification which I sent to another forum member but no longer have a copy unfortunately

ronk · Post by **ronk** » Wed Oct 21, 2020 4:26 pm

viewtopic.php?f=23&t=51381&hilit=foil+door&start=15

Its been partially blanked by 'photobucket' logo but it gives you a hint!
The dealer should be able to supply you with a copy.

I went thro' the process to find and correct the fault - It was a completely successful fix on the car I had at the time (3.0 Auto -2010)

ianl · Post by **ianl** » Wed Oct 21, 2020 5:06 pm

Thanks Ronk. That's perfect. I'll have to wait until the weekend to give it a go.

Cheers!

ianl · Post by **ianl** » Wed Oct 21, 2020 5:13 pm

ronk wrote: ↑Wed Oct 21, 2020 4:26 pm viewtopic.php?f=23&t=51381&hilit=foil+door&start=15

Its been partially blanked by 'photobucket' logo but it gives you a hint!
The dealer should be able to supply you with a copy.

I went thro' the process to find and correct the fault - It was a completely successful fix on the car I had at the time (3.0 Auto -2010)

Sorry, I should have asked. Do you know if the sensor is in both doors? If not, just drviers?

ronk · Post by **ronk** » Wed Oct 21, 2020 8:12 pm

ianl wrote: ↑Wed Oct 21, 2020 5:13 pm
ronk wrote: ↑Wed Oct 21, 2020 4:26 pm viewtopic.php?f=23&t=51381&hilit=foil+door&start=15

Its been partially blanked by 'photobucket' logo but it gives you a hint!
The dealer should be able to supply you with a copy.

I went thro' the process to find and correct the fault - It was a completely successful fix on the car I had at the time (3.0 Auto -2010)
Sorry, I should have asked. Do you know if the sensor is in both doors? If not, just drviers?

Unfortunately I don't know. My car went back to the dealer at the time and I didn't ask.
Sorry

ianl · Post by **ianl** » Wed Nov 04, 2020 11:12 pm

I can answer my own question as I did the mod on my car today. The antenna boxes are in both doors.

ronk · Post by **ronk** » Thu Nov 05, 2020 12:36 am

It sounds like you did the mod yourself? It could possibly be a help to a few if you could post on the “How To” section

Glad to hear you are sorted - I assume you gave the door skin a good blast with the hose pipe?

ianl · Post by **ianl** » Thu Nov 05, 2020 10:11 am

Don’t know if it is sorted yet. I couldn’t replicate it with a hosepipe before, so I will have to wait and see. More nights of sleeping with the key next to me ready to turn the alarm off!

ianl · Post by **ianl** » Thu Nov 05, 2020 10:51 am

It’s not sorted. Sunny here and the alarm just went off. More investigation required.

ronk · Post by **ronk** » Thu Nov 05, 2020 4:05 pm

ianl wrote: ↑Thu Nov 05, 2020 10:51 am It’s not sorted. Sunny here and the alarm just went off. More investigation required.

It’s probably not the door modules then. My car only false alarmed during very heavy rain.
It is probably worth doing the double click on setting the system to isolate motion sensors etc leaving only the doors alarmed.

I assume you have a good battery fitted in the car ie the system isn’t seeing a voltage drop?

ianl · Post by **ianl** » Thu Nov 05, 2020 7:32 pm

I haven’t checked the battery yet but it was only manufactured in 2018 so should be good, but I will check.

I had previously done the double click but the alarm still went off (happened to be in the rain), which made me think it was the door modules.

ianl · Post by **ianl** » Fri Nov 13, 2020 1:06 pm

Got a new battery and the alarm is still going off. Does it log somewhere which sensor is triggering the alarm?

ronk · Post by **ronk** » Fri Nov 13, 2020 1:45 pm

Sorry to hear you’re not having any success finding the source of the problem. You’ve done the obvious so I fear you might have to bite the bullet and seek professional help.

mr.tourette · Post by **mr.tourette** » Fri Nov 13, 2020 1:58 pm

Personally I'd disconnect the siren if its possible, no one pays any attention to car alarms, theyre just seen and heard as a noise nuisance for these exact reasons.

Z4-forum.com

Z4-forum.com