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What is Pumping-up ?

1325 Views 2 Replies 2 Participants Last post by  BUBBIE
I have a Pure 2010 for two. When first started in morning, I can hear a sound like an electric pump -Pumping- (while motor is running) for about 30 to 50 seconds then turns off... ?
(car garaged & fairly warm here in Az.)

Not found anything in the Smart Book I have...

Thank you for an answer...

I Know NOTHING much about Smart Cars, Just Harley Davidson motorcycles...

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Welcome to SCoA aka The Asylum . . .

Startup noise is just another smart thing - this thread may help you better understand?
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Thank You for a Speedy Reply
(accurate too) 0:)

Now to tell my Mercedes Tech in Germany "I found the answer"

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