If your car is suffering from rough idle on start up, check your air intake pipe

[GOM]

Not sure if this has been posted before, however wanted to share my experience.

Bought the car and for a while was running well, would idle constantly on start up and no error code. However after a while I noticed the idle going up and down and started to get error codes that cylinders were misfiring. I knew the air intake pipe section needed replaced as a previous owner had bodged a repair, so approx £29, said item was bought from my local BMW dealer and I fitted it yesterday.

What a difference it has made, rough idle gone, error codes cleared and no EML on. It is dead easy to do, although a bit fiddly to get the clams off, (especially in this heat )

Picture showing old and new

 

[bigwinn]

consistently a failure point for most cars of this age now-

but look at the state of that!!!

Good job!

 

[GOM]

I know, it is a shocker! Think I am now going to go through it and check for ther perishable items that need attention.

 

[Beatman]

Funny you should post this, only did mine at the weekend

 

[thecremeegg]

I did mine a week or 2 ago - the little hose had split like above

 

[TheDan]

I just ordered one as I have the classic annoying whistle and it is looking a little tired. Will update when I fit it.

 

[enuff_zed]

For anyone without a sound generator, I have a perfect condition example of the simpler version of this hose. Removed when I fitted the sound generator on our 2.5i.
If anyway needs one, it's available for the postage cost.

 

[Roberltd2]

Result!