Sluggish acceleration issues

[amebb]

Hi
I have an issue on my E53 X5 (2004) Diesel - where my acceleration is not as rapid as it used to be.


I find that i am needing to push the accelerator pedal down further and for longer for any thing amazing to happen.


So, this is what i have done in the last 30 days to the car:-


Changed front diff oil
Changed rear dif oil
Changed the Transfer case oil
Also changed Transfer case motor
Changed streering wheel angle sensor too
Front wheel drive shafts have also been replaced
Front wheel bearings replaced


Previously, I had the 4x4 light on all the time as well as two more lights for the transfer case motor.
There are no lights on the dashboard now. The 4x4 light comes on when i start the car and then goes off when i turn the steering wheel. Normally this light does not last for more than 4sec.


Before i did all the work on the car, the acceleration was nimble and fast. Now the car does not have that instant boost that it had once.


I have had a look at the fault codes and this is what i have:


Power System Issues

1)DDE - Exhaust Gas Recirculation
2)DDE - Charge Presure Control

Safety and Security system

1)DSC - Steering-Angle Sensor supply
2)LWS - Supply (Terminal 30)
3)PDC - Converter, Rear Left

Vehicle Body Ssytem

1)SHD - A088 Control System
2)IKE - Electronic Braking Force Distrubution
3)RLS - Optical Initilasation


Can anyone help me with this issue?


Thank you