Hello,

Thanks for the replies.

I have checked my 1982 300sd/w126 and it runs fine. The PSI from the Turbo to the ALDA rises all the way up to 15 PSI. While my 300sd/w116 stays at 7 PSI.

Is it true that all the Garrett Turbo's whisle. I have one that does and one that doesn't. The one that doesn't has the power problem.

Any suggestions would be appreciated.

Brian