Finding them at a good price isn't the issue, it's the fact that it took 13
 injectors to get a set of 5 that passed the bench test. I don't have the
dealer equipment to test these but my mech does. Had I ordered up 5
injectors and installed them assuming they were up to spec I'd have 3 of
the 5 new injectors performing as badly as the ones with 200K miles on
them. Pretty pathetic for a company with a reputation for precision (These
were re-manufactured by Bosch, mind you). That's about a 65% failure rate.
How may of us buy parts with a reputable name brand and install them with
the assumption that they *must* be right. Like I said, I'm damned lucky to
have a meticulous mechanic who makes sure it's right the first time.

JD

I have seen many similar reports on the net complaining about many of
the Bosch injectors being bad right out of the box.   The problems
I've seen reported are both spray pattern and inconsistent pop
pressure.   Seems the feeling is that the ones made in India are the
main source of the problem.  It's really hard to understand.  One
would think using new nozzles and having access to basic test eqpt, it
would not be hard to turn out product that was decent right out of the
box.

After spending a considerable time researching what to do, I've
decided to do mine myself.  I'm in the process of assemblying the
components to build my own pop tester.  With that, not only can I
rebuild them using new nozzles, but will then also have the ability to
test them again at any time.   Plus, I'm curious to see how the
originals with 127K on them measure up when tested.  For nozzles, I've
decided to use Monark.

BTW, for the tester one part I haven't located yet is an old MB or VW
fuel injector line to use to go from the test pump to the injector.
If anyone has one they would be willing to sell, let me know.

For shims, MercedesSource.com has recently added them.   They have
them in small bags of like 6 in various sizes, all the way up to a
complete set.  They run about $1 for the largest set, more for the
smaller sets.  If anyone knows of any other sources, let me know.

Regarding shims, I have a question maybe someone here can answer.
When adjusting the shims, is it OK to use two or more shims to make up
the correct thickness or are you only supposed to use one shim?
Reason I ask, MercedesSource is selling some very thin ones and
advocating that as a way to more easily get the right size without
having to have a whole family of them.   But I'm left wondering if you
one or more very thin ones, isn't there some risk the thin material
could break apart?