No sound from speakers / PDC - Logic 7 top amp fail?

No sound from speakers / PDC - Logic 7 top amp fail?

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jboy72

Original Poster:

375 posts

182 months

Tuesday 5th January 2016
quotequote all
My wife just casually texted to tell me that she had turned the volume up very loudly on the stereo of our 2005 e61 to drown out the shouts of a child whereupon the volume suddenly cut out completely. No sound from the stereo, PDC etc.

I will be able to check the basics myself this evening but does anyone know whether turning up the volume to a serious level COULD cause a fuse to blow? Even if a fuse had blown, I assume this might disable the stereo itself or the PDC and not just the speakers?

I understand an I-drive reset is the done thing in these circumstances but I cant see how that could help.

I am also led to believe that using my second keyfob might be a miracle cure but again, I cant really see how!

If I am looking at an L7 top amp, any bright ideas - I would rather not spend £1k on this problem if I can possibly help it!

Many thanks in advance......

jboy72

Original Poster:

375 posts

182 months

Tuesday 5th January 2016
quotequote all
helix402 said:
If the amp is faulty they can be repaired, a Google search will help. I used Cartronix in Surrey, they are expensive for the amp repair but cheaper than a new one.
Thanks, I am in South London so not a bad shout. I will bear them in mind if I need them...

jboy72

Original Poster:

375 posts

182 months

Wednesday 6th January 2016
quotequote all
home said:
I don't really hear of L7 amps failing that often in the E60, but I've occasionally seen L7 amp repair listing on ebay which suggest they do fail.

Any how, this might be of interest to you if you're practically minded

https://www.youtube.com/watch?v=npJqhN2jPkM
Many thanks!

In fact, when I checked the car last night I noticed a number of things: SOS call failure light, ipod connector not found so reverted to CD multichanger on the idrive even though I do not have one, no paired phone found through Bluetooth setting, voice recognition not working etc etc. It was like being in my low-tech Alfa. I think all of these things are on the same fibre optic pathway and if one fails they all fail. Clever. So I think I will just take the car in for a component check. Hopefully it will be possible to isolate the faulty component and repair or replace it and all will be well again. It could be the amp but I dont really want to start playing if it is not. I guess I am lucky enough to drive a car I love and not begrudge it the odd big (and let's face it, this could be) bill despite its 11 years of age!