Engine hunting on idle

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chris200

Active Member
Joined
Sep 18, 2013
Messages
112
Car
c200
2008 W204 C200 CDi

On idle the engine is hunting a little. The fluctuation is very small (probably no more than 100rpm) but it is there when cold or warm. Is this a problem or normal?
New thermostat being fitted this week. Don't know if the two are connected?

Thanks
Chris
 
try changing the fuel filter when i brought my C270 it was hunting on the test drive so they changed the filter and all was well.
John
 
....and take it for an good full throttle blast.
 

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