W210 E320 Cdi 2000 No power

[Rodh]

From cold for about 10 miles the car runs perfectly. Then it goes all soft and no acceleration. Stop, switch off and restart and it runs fine for 15mins or so.
Have changed the Maf and Map sensors but no cure. Any ideas?

 

[bob6600]

1. http://www.mbclub.co.uk/forums/engine/144927-lack-power-cdi-what-do.html
2. STAR session

 

[Rodh]

Solved. Sticky Egr valve the problem. Cleaned and now back to its old self.