code 16618, limp mode problems.

If you disconnect the rod from the little lever sticking out of the turbo or unscrew the rod in half, yes.

So, if I have .75 to an inch of movement from the actuator the turbo vanes are moving normally? It does not need cleaning?

Log boost requested vs. actual to see if the vanes are moving normally. If the rod moves smoothly the vanes aren't sticking but the best test is to log data while driving. Does the car have any mods? Check the intake piping for leaks.

I'll try it tomorrow and post back with what I find. The car has no mods. I'm a little with VCDS so I'm not always sure what it will tell me.

I drove and ran a graph but I don't know how to save and attach it here. The desired and actual boost stayed with 100 mbar of each other unless I was on it hard and then actual went much higher than desired.

Some additional info if you have boost fault with a "BJB" engine in a Caddy with engine E.C.U. "03G906016DM" with software version 5845, 6045 or E.C.U. 03G906016LG with software version 0699,0803,1299. There are software updates for these computers, that can be done by a Volkswagen Dealer if all other remedies listed do not solve the problem. Hope this reduces the frustation for "BJB" engine code owners