Car shuttering when started,like its not tune,rev up and down.

Hi there.
Well because its a auto box you could have a band or pump problem which is in the gear box and is bathed in auto matic fluid oil and that could be your problem as the bands do wear down fast on a lot of cars and BMW with there power that could be you.
So take it to a auto box people and get it checked out.

no the auto is shorter because the transmission is longer

could be your tenitoner pully or your belt advance auto parts sells a belts conditioner in a can buy it spray on your belt and see if it helps it should

There isn't a car out there that likes to be put in drive as soon as it is started. Mine especialy. I give it at least 30 seconds to warm while I am adjusting evrything and away I go. Runs like a champ. Let it warm up for a couple of minutes from a cold start.

if the transmission was low on fluid you may have worn some parts,take this to a shop that specializes in BMW transmissions,this is not for the local transmission guy,special tools needed to test the transmission,may have to be re-programed

Hi I have a 2003 318i se saloon it started to loose power a few weeks ago now when you rev it up it makes a noise through the inlet manifold like its a dump valve it still drives but with very reduced power i had a new exhaust fitted yesterday with a new cat as i was told the cat had collapsed been told it could be the timing chain other than that i have not got any idea can any one help please.

something in the airbag system is at fault. it could be the airbag(s) itself or any of the sensors that detect a crash to deploy the airbag. i would really take it into BMW and have it checked & repaired. the airbag(s) will not deploy with this light on so your safety is at risk if you are ever in an accident..

GO TO A KRAGEN OR AUTOZONE AND HAVE THEM RUN A TROUBLE CODE TEST, THIS COULD BE A TPS PROBLEM, VACUUM LEAK OR STUCK/WARPED THROTTLE PLATE.

Hello there

If you drive an automatic and it starts to judder at low speeds than that means you transmission isn't down shifting as the speed is reduced. In the first instance you should get your transmission oil changed.

Hope this helps and please don't forget to rate me.

try disconnecting the air mass meter sensor if it runs better then ur air mass meter has failed had the same problem