Pump noise
06-06-2015, 02:13 AM
#1
Member
Thread Starter
Pump noise
Hey
I have just got an 45 ( coming from a GT-R and C63) and have a question about a "pump noise" when the car idles.
I hear a noise coming from engine or gearbox when I have the car on idle and it sounds like some sort of hydraulc pump. It comes and goes just like its keeping up some sort of pressure.
Hard to explain but sounds weird.
Can be completly normal of cause but thought I should ask and see if anyone else has noticed it?
Car drives good and no issues.
Anyone?
I have just got an 45 ( coming from a GT-R and C63) and have a question about a "pump noise" when the car idles.
I hear a noise coming from engine or gearbox when I have the car on idle and it sounds like some sort of hydraulc pump. It comes and goes just like its keeping up some sort of pressure.
Hard to explain but sounds weird.
Can be completly normal of cause but thought I should ask and see if anyone else has noticed it?
Car drives good and no issues.
Anyone?
06-26-2015, 05:34 PM
#2
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2014 CLA 45 AMG
Its probably different but mine has a thump noise when the car slows down to a stop. Sound happens during down shift or when the clutch engages during a stop. Sounds like a ball in the trunk hitting the seat but only once per stop. Especially noticeable before the engine/trans completely warmed up.
