2008 bmw 328i . The idle speed is not very smooth, and now the lefthand side of the engine has developed a metallic tinkering sound which appears to disapear when. 2008 328i E90/91 3.0L 24V MPl N52B30A w/ about 80,000 miles. Posted by Ralph on Feb 07, 2013. My car has 170000 miles. The orange engine light would go on. Rough idle with a whining noise from the front of the engine compartment only at idle. BMW 328i Rattling Noise? BMW's are revered for their performance & endurance. It pulls hard, no knocking or tickling noise when car is idle. I just bought a new car 2 weeks ago (2008 325i m-sport) car has been great and I love everything about it, however I have noticed a strange humming type motor-ish noise coming from the car when idle and revs at 1000rpm, it wasn't much of an … Want Answer 0. My 2011 BMW 328i Is making a loud whistle sound with rough idling. However, if you are driving a BMW having an older N52 engine, then you might be familiar with the lifter ticking noise, which can be frustrating. One problem of locating trouble is that the noise stops when the brakes are applied or when the car is at a standstill. For the past week, after driving 15-20 mins a quiet whistle starts from under the hood and slowly gets louder and louder. The following tips will help you avoid the lifter ticking noise in your BMW. also, there is a little intake whistling noise as well. what whistle are you referring to. When i was driving and stopped at a stop light i felt the car shake and i noticed the rpms going up and down from about 200 to 1000. I also heard a loud whistling noise. The whistle is loud like a tea kettle. all bmw's, at least all the e46's i sat in have the same whistle. I've replaced Spark Plugs \ Ignition coils; DISA valve exploded, passed through intake. Oil changed as well ; Car : 2008 BMW 328i. Hi there, I have a 2007 X3 that's making a high pitched whining noise intermittently but about 75% of the time. My bmw is making a very loud high pitch whistling. I took it to a mechanic and he replaced the valve cover but the noise still exists. I've had my BMW shop run all kinds of diagnostic testing and they can't locate the source. It makes this noise after i drive it for 10 min or so. … RepairPal will help you figure out whether it's your Ball Joints, Struts Or Strut Mount, Sway Bar Links, or something else. Then, when I slow down to turn, or come to a stop the engine shuts off completely. ... My bmw makes a whistling noise after driving on highway for an extended period of time ... My 2008 BMW 328i isn't starting well - at first it sputtered and would not idle correctly. So i'm stumped. 2008 BMW 328i 60k mi, suddenly started to idle rough at all times, not noticable @ higher speeds but its still there? Car is running very rough at idle, ticking noise and it wants to stall. when i accelerate, usually from 60-70 i hear a little whistle but that is just the sound of the engine. Bmw 328xi 2008: rough idle (Service engine soon light), slight burning plastic smell, a whistle noise recently appeared when in idle or slowing down while driving and a knock from under the car which i guess its coming from the engine. Hi everyone, I'm new here and this is my first post so be gentle ,I'm not getin much help elsewhere so maybe it's a uk thing,. Please tell me the problem. Rough idle , and slight whistling noise 3 Answers. When I turn the car off the noise stops but when I turn it back on and drive for about 5 mins the sound comes back and it's very loud . Mileage: 155k . Replaced disa valve, recovered broken pieces of flap. It sounds like a siren. I switch to park, restart the engine and it turns on just fine. 2008 bmw 328i . 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