W205 c250d 2014 drops rpm (fluctuation)and gearbox jerks.

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Londonuser

New Member
Joined
May 4, 2021
Messages
5
Location
London
Car
W205 C250d 2014
Hello.
Rpm go up to 1900, then fall down to 1700 and again go up, I'm all the time press gas pedal. Sometimes this happen in 1500 rpm fall down to 1300 and go up again.
This feeling like engine loss power for few second and that why gearbox also jerks.
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From begining no error code in SD.

Gearbox conductor plate and valve body changed for new, injectors changed for new, ldo fuel rail changed - nothing help, after I changed egr valve and throttle body, first day it's much better with gear changing, but still rpm going down. After few days everything come back,like before change. Also engine sometimes not run smooth.
Any idea?
 

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