BMW M235i xDrive Gran Coupe service by top-rated mechanics at the convenience of your home or office

The presence of coolant suggests a leak and that should be resolved as a leak could be a cause of the misfiring if water creates a path to ground. If, by chance, you are referring to coolant actually in the...

Most alternators have a voltage regulator integrated within them. This voltage regulator is responsible for making sure that the battery is charged right around 14 volts. If your alternator is producing 17 volts, it is almost a certainty that the...

It's hard to tell without doing some further testing. This sounds like a misfire. A misfire (https://www.yourmechanic.com/services/engine-is-misfiring-inspection) can be caused by several components. It would explain the "limp mode", the shaking (https://www.yourmechanic.com/services/car-is-shaking-or-vibrating-inspection), and the Check Engine Light (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection). Misfires are...

What you are describing is a category of inconsistent idle. The underlying fault may exist at higher engine speed but the effect is masked at those higher speeds. Among the potential underlying causes are vacuum leaks, EGR system malfunctions, malfunctioning...