Noise when first started

[b2fortwo]

When I first start the car there's what sounds like a pump or something coming from the engine area. It's a pretty high pitched noise, and then stops after about a minute or so. I only notice it when the car has been sitting for awhile, after it's warmed up I don't remember hearing it. Is this normal?

I'd just take it back to the dealer and ask them if it weren't so far away.

[shark]

It is a fan that blows air into the exhaust system. it helps improve emissions on cold start. It s normal.

[aquanta]

Originally Posted by b2fortwo

When I first start the car there's what sounds like a pump or something coming from the engine area. It's a pretty high pitched noise, and then stops after about a minute or so. I only notice it when the car has been sitting for awhile, after it's warmed up I don't remember hearing it. Is this normal?

I'd just take it back to the dealer and ask them if it weren't so far away.

All our smarts do that. Check this thread: Ladies and gentlemen, start your.....FANS!? and this one New to the sounds

Post #2 on thread 23339 has the technical explanation. I was lucky that Nick from smart Center of Sacramento, explained us what that was when delivering the car. Otherwise, I would be here asking the same thing!

But it shouldn't be for a minute... It may sound longer than really is.