Re: 2001 530i 5-spd 91,00 miles. How to remove cover from back of

hsg@[EMAIL PROTECTED]
 wrote:
> 
> Not so I've seen some with commutator type slip ring contacts - early
Lucas
> spring to mind.

That still describes a generator - where the commutator does the 
rectification. An alternator has stator coils that put out alternating 
current, which is then rectified by the diodes. The rotor only needs to 
be turned on/off for regulation - the varying magnetic field in the 
rotor determines the output of the alternator.

http://www.alternatorparts.com/understanding_alternators.htm

http://www.nationsautoelectric.com/function.html

>> Or simply go to an Autozone, Pepboys, whatever in the US and pay $170 
>> for a rebuilt one.
> 
> But with those that maybe cheaper than Bosch you can only take them back
to the
> shop you bought from whereas Bosch have a national dealership and any
branch
> will swap out a faulty unit FOC if you have the necessary paperwork in
the car
> and it's within warranty period.

There are many more Autozone, Pepboys stores in the US than there are 
Bosch service facilities. And they also warranty the products - usually 
with a "lifetime replacement" warranty.

> It's a bind having to pay for a new unit and then take the faulty one
back fro
> another - you won't get the cash back.

Don't have any idea what you mean by the above..