Hi,

yesterday I got my Beosound 5 back from service because it had dust under the glass and they replaced the dust filter (? it was 1st generation Beosound 5 which used another seal/filter for dust)

Today I checked it using a flashlight: There's still a fair amount of dust under the glass. The glass was replaced (as the old one had scratches, too).
In normal use I can't see the dust but when the flashlight or a spot of light is shining on the glass I can see it :-(

What to do? Return to my dealer and let him try it until I have a complete dust free unit or is it nearly impossible without doint the work in a Hightech clean room from a chip manufacturer? :-)

TWG:

What to do? Return to my dealer and let him try it until I have a complete dust free unit or is it nearly impossible without doint the work in a Hightech clean room from a chip manufacturer? :-)

In a certain manner you gave the answer - a cleanroom isn't standard equipment for a dealer/service center ...

If you think they did their job not as best they could -  make a complaint to the dealer/service center.

same situation as you've described.

i had a 2nd generation dust filter when i bought it new.

gathered dust under the glass in a few months.

sent it to national service centre in gloucester i think - they have a airproof room.

came back with even more dust.

i have given up hope. the unit is just badly designed.

you could try germany and see if they do better.

If I knew how complicated it is to remove the glass, I will do it myself until I AM happy :-)

It was at a german dealer for repair/clean :-( Or do you mean Bang & Olufsen Germany? 

TWG:

If I knew how complicated it is to remove the glass, I will do it myself until I AM happy :-)

I'd try to find a solution with the dealer/service center - 
maybe the just had a shortage in air dust cleaner ;-)

If you want to do it yourself - the installation manual for replacing
the glass points out explicitly:

! A static-protective field service kit must always be used when the
! product is disassembled or modules are being handled.

! Be carefull not to touch the inner side of the front glass.
! If it gets dirty, the surface cannot be cleaned (the coating is damaged).

! If there is dust on the glass, use an air dust cleaner for cleaning.

Don't forget to wear white gloves ...

ok, this sounds strongly like "visit the dealer" :-)

Thanks. I'm watching it and see if I can live with it... 

seethroughyou:

Many thanks Joe!

well done Joe !

seems you are an exemplar for B&O quality in after-sales services

thank you for setting an excellent example