I had turbo city in Orange, CA, rebuild the T3 on my '82 300SD (not a california model). This was part of a head R&R, so I had new gaskets all around, EGR delete, new oil feed line.

The turbo sounds like a siren. I can hear the turbo's RPM very clearly from the high pitched whine.

I did everything per the instructions that accompanied the turbo. Couldn't find a turbo feed line, so I had to make one myself. I used new 10mm steel hydraulic line and brazed on the original fittings. I verified that the line is unobstructed.

I cranked the motor for a couple minutes (intermittently.. 30-45 sec at a time) before firing it up, then let it warm up at idle.

Here's what it looked like right after I put the oil line on:


Here's the gallery of all the pictures of the head replacement, if you want more info:
http://picasaweb.google.com/mechromancer/BenzHead#

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'82 300SD 351k