2005 S320 CDI limp mode

I have a W220 S320 CDI that goes into limp mode when accelerating hard (especially when cold)
When ignition is cycled everything is fine again.

Fault codes stored:

2510-1 Check component Y100/1 (Right charge pressure sensor positioner) Positioner signals fault

2509-2 Check component N33/2 (Heater booster control module) Positioner signals fault

2632-8 Charge pressure control, Charge pressure too high


Anybody got any ideas on these fault codes?


Thanks