PsXX

The whistle noise is comming from the throttle body. Some do it more than others. When you remove the factory airbox and add an intake (any intake) you loose the sound absorbing material in the box and thus making the whistle LOUDER. ECIS was producing a product from Original BMW Parts to help somewhat quiet the whistle bit I havn't checked with them in a while (I'm in the same boat too). The crankcase beather (p/n 11-61-7-501-566) makes more of a "honking" sound when they go bad. On earlier E36s with the M44 four cylinder engines, YES, those breather valves did whistle, I had one on my old 96 318ti.

fant noe lignende prob på us nettside : Guys/Gals, for those of you who have the "elusive" whistling noise coming from underneath your hood I finally found a dealership that fixed my whistle For the past year or so, I've been to 3 different dealerships and ALL have said its a normal noise. WHo are you kidding man........my car didn't make the noise when I bought it with 16k miles on it and 15k miles later the noise appeared. I even called BMW North America and they acted like they never heard of such a problem. I searched through every thread on this forum and many have suffered from the same noise. Anyway, while evacuating from the ***** of a hurricane that destroyed my city of New Orleans, a tech at a dealership in Las Vegas knew exactly the fix for the whistle. Crankcase Breather................something that I brought up to my local BMW dealership in New Orleans and they said that it checked out. Well, the Dealership in Las Vegas actually changed it out and no more friggen whistle !!!!! SImple as that...............don't know why none of the other dealerships I went to did not want to fix the problem. They all pretended like the noise was normal. Soooooooooo, to all of you experiencing the most annoying noise upon acceleration and even at constant cruising throttle, please bring this to your service advisor and tell them to change out the damn crankcase breather. Good luck to all. :thumbup: -------------------------------------------------------------------------------- http://forum.e46fanatics.com/archive/in ... 09027.html

Plystrer i kaldt som varmt vær, totalt sporadisk...

den plystrer til den blir ordentlig varm i 30- 60, og bare svaaakt i 60-70 når temp er nesten på midten. må også sies at jeg har fått byttet alle reimer, slurevifte,vannpumpe og fylt kjølevæske på verksted. vurdert 1000 ganger om det er et lager på vifta til varme app, men har ingen bevis..

Hei, jeg har en 518i, som har et sært problem jeg aldri har hatt med noen annen bil, nemlig at den plystrer når den er kald,i 40-60 km/h og varm plystrer den svaaakt i 60-70 har vurdert problemer med org tute som satt bak grillen, fjernet disse, sjekket luftslange til powerfilter, og midlertidig teipet evt små sprekker i rillene i gummien. høres ut som om det kommer som følge av vind som kommer til der det ikke skal, eller en plate/del som ikke sitter ordentlig.. Help anyone?