328i. Specifically, it's a 2007 [pre-LCI] 328i 6MT Sedan w/ Sport Package w/ ~210k miles. I'm experiencing an odd shaking and vibration throughout the car whenever I accelerate. It seems to get progressively worse as I climb through the gears until it's almost unbearable at any speed requiring gears 4-6. The shaking is worst under acceleration There are several reasons why an engine runs rough at idlesome of the most common are very simple fixes. Tune-up is in orderplugs, distributor cap, rotor and wires deteriorate with time and mileageIf you can't tune it yourself take it to a reputable mechanic ( $75-$100). The reason you don't notice the roughness (misfiring) when the 296990 guest. Hello All! Basically the car is fine until around 70 mph when at that point and any speed higher it has a vibration but the weird thing is it stops as soon as you are off the gas. You could be doing 75-80 with a pretty good vibration throughout the car but as soon as you are off power the shaking stops. One of the main reasons why your vehicle could be vibrating at idle could be due to worn out spark plugs. When a vehicle’s spark plug is faulty, it can interfere with the air-fuel ratio leading to improperly firing cylinders, resulting in a misfire while idling. Replacing your spark plugs will solve this problem. 10 posts · Joined 2009. #3 · Nov 12, 2009. try this it's easy to do only 5 minutes and solved all your rough idle and check engine light problems on your (2000-2009) later or newer yes! all BMW E60, X3, X5, 325i,330i,335i,525i,528i,530i,535i, check out the manifold adjuster Google this up. That appears to have been the problem the whole time. 2. When the car is started warm, it has a rough idle (knocking, tapping, sometimes roaring sounds). Previously I stated it had to sit for 20 minutes, but I found this is not the case. It happens immediately. Other factors: - A series of short trips seems to exacerbate the issue. BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > Rough idle engine shaking after car is warm Google Search Search Forums This vibration takes the form of fluctuations when the engine is cold at low speeds. is also seen in the video. There is no problem when I press the gas very little or when the revs increase a little. There is no problem when the vehicle is driving on a straight road. It only occurs when cold and at low RPM in the 1-5kmh speed range. vibration inside car at idle=engine mounts. Shaking engine=ignition coils. Loud engine = temperature problem of diesel or petrol because stations supposed to have different on the summer & winter. Loud engine at 200+km = injectors need clean ( take them out and have pro cleaning) the other cleaner methods do not last! M. Here we will review a few issues that may be the most common “wear and tear” problems. 1. N20 Valve Cover and Valve Cover Gasket. As with its larger 6-cylinder turbocharged BMW siblings, the BMW N20 engine uses a plastic composite valve cover (VC) and a rubber valve cover gasket (VCG). 1lBX.