Ok, need a little help. I have a 1997 328i with 145,000 miles. Just replaced both pre-cat O2 sensors due to code that has been on since 80,000. I did a basic tune up on it recently, plugs, coil boots, T-Stat gasket, belts. I also replaced the secondary air pump valve due to code. Now I get a rough idle on cold start, in garage or outside parking. What causes BMW rough idle? If too much air is added to the air and fuel mixture, then your engine will be rough idling. A dirty fuel injector can also cause rough idling. The fuel injector administers the correct amount of fuel into the engine’s cylinder at the appropriate time for a smooth function. Why is my BMW 328i engine shaking? Vibration problem on BMW 1 Series. I have a 2009 BMW 120d M sport with 98,000 miles on the clock from new. The car has developed a severe vibration through the gear lever and clutch pedal. Any suggestions as to the cause? Probably a failing dual mass flywheel that is in the drivetrain to absorb torque between the engine and protect the The most common reason your car is shaking when stopped or at idle is due to worn spark plugs or vacuum leaks. It can also be caused by loose or damaged engine mounts, a worn serpentine belt, a bad fuel pump, or any other fuel-related issues. The first thing you need to do when your car vibrates or shakes at idle is to check the trouble codes With a condition such as this, it is normal for it to run rougher when electrical components are tuned on and it is normal for a car to run rough when the idle is to low. My first instinct here is to clean the throttle body, fully warm the car, connect a scanner, and command the IAC (Idle Air Control) valve to move the idle high and low to see Rough idle , and slight whistling noise. 20. Asked by SUPREMEGHOST718 May 19, 2016 at 01:34 AM about the 2008 BMW 3 Series 328i Sedan RWD. Question type: Maintenance & Repair. 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. 328i Idle Surging. My e92 328i will have an occasional idle surge when coming to a stoplight. This happens mostly in the morning when the engine is cold and the AC is on. Managed to get a video of it today and wondering if anyone has experienced something similar. The idle usually moves a little (+/- 100 RPMs) on cold starts and when the engine BMW 328d torque jumping at idle, causing car to shake violently. I have a 2014 BMW 328d (automatic, RWD), which I bought in late 2013. For the last several months, intermittently when at idle with the brake firmly pressed the entire car will shake violently. On 3 occasions, the car even jumped forward as much as 2 feet -- very scary when there nvNW.