> Rubbish. Besides, all the DI-modules should be usefull again, as soon as the
> component in question is changed.

Signature
MH
'72 97 '77 96 '78 95 '79 96
'91 900i
> > Rubbish. Besides, all the DI-modules should be usefull again, as soon as the
> > component in question is changed.
>
> There's not a lot you can repair on a DI (IDM "cassette" according to the
> article), and even if it is repairable it is probably not economically feasable
> to replace a faulty 0.05 component. I think all the replaced units will be scrapped.
IGBTs are hardly $0.05 components !
Anyway, aren't the internals fully epoxied ? There's no way to fix something made that
way.
Are the DI cassettes mentioned less reliable than before ? Can't help wondering if it
was a GM inspired cost-cutting exercise.
Graham
MH - 30 Sep 2005 11:24 GMT
> IGBTs are hardly $0.05 components !
That's true, but the manufacturing cost of a DI unit is probably a small fraction of
the sales price, and the faulty component in the DI unit may only cost 0.05 (in
whatever currency)
> Anyway, aren't the internals fully epoxied ? There's no way to fix something
> made that way.
Exactly, so the ones that are replaced will be scrapped, faulty or not.

Signature
MH
'72 97 '77 96 '78 95 '79 96
'91 900i
Bill Jackson - 01 Oct 2005 00:28 GMT
What about the failures of other DI cassettes?
My 99 9-5 failed about 6 months ago, my neighbor's same model failed last
week.
Is that not the same cassette that was used in the 2000? Why not us?
>> IGBTs are hardly $0.05 components !
>
[quoted text clipped - 8 lines]
>> made that way.
> Exactly, so the ones that are replaced will be scrapped, faulty or not.
Steven Stern - 01 Oct 2005 16:49 GMT
> What about the failures of other DI cassettes?
>
> My 99 9-5 failed about 6 months ago, my neighbor's same model failed last
> week.
>
> Is that not the same cassette that was used in the 2000? Why not us?
Exactly! My 99 9-5 V6 required a new DI about a year ago.
Colin Stamp - 01 Oct 2005 18:00 GMT
>> > Rubbish. Besides, all the DI-modules should be usefull again, as soon as the
>> > component in question is changed.
[quoted text clipped - 4 lines]
>
>IGBTs are hardly $0.05 components !
[snip]
Not far off
http://uk.farnell.com/jsp/endecaSearch/partDetail.jsp?SKU=4388148&N=401
If Farnell do them for GBP 0.44 at 100 up, you can bet GM will be able
to buy them a lot cheaper.
I've seen encapsulated electronics re-worked before. It's not pretty,
but it is possible if you're set up for it.
My guess is they'd still scrap the electronics and save the (very
expensive looking) cases though. They probably only cost about 50 quid
each to make anyway. The 75 million figure is no doubt based on retail
cost.
Cheers,
Colin.