Whatever shortcomings the mechanic may be guilty of, there is no
requirement to bleed the fronts just because a leak in the rear drained
the fluid out of the rear section. The fluid reservoir is divided into 2
parts, for safety. You can have a major leak in either front or rear and
the other part  will still have plenty of fluid to operate without any
air getting into the good side. I personally would normally bleed both
systems just to get fresh fluid into them both, even if I only replaced
parts in one.

Mark

Keith Hughes wrote:

> .....................
>
>> Should the mechanoc flushed all
>> fluids
>>
> Not necessarily.  Good practice, but not necessarily *common* practice.
>
>> and make sure no air was in the lines?
>>
> Absolutely!  Too basic to even argue about.  And not just the rears
> either.  Since you were leaking fluid, any competent mechanic would
> assume the possibility of fluid getting low and air getting sucked in
> the master cylinder.  He would automatically bleed all wheels to make
> sure.  We're talking about 5 minutes here, seriously.
> .......................