What causes engine shaking in BMW X5?
2 Answers
Reasons for engine shaking in BMW X5: 1. The ignition timing of the engine is too advanced, which can cause the fuel in the engine to not burn completely and be subjected to high pressure, resulting in engine shaking; 2. Long-term use of the engine can lead to carbon buildup. If not cleaned for a long time, it can increase the compression ratio of the engine, creating high pressure inside the engine and generating hot spots on the surface of the carbon deposits, which can also cause engine shaking; 3. Poor exhaust performance in the engine can generate relatively high temperatures during operation. High temperatures can cause engine knocking and also lead to engine shaking. The changes in the appearance of the new X5 are mainly reflected in the details. The iconic BMW grille has been slightly modified, making the overall front look more robust. The taillight design has also been changed, and the exhaust pipes have been altered from oval to round.
I've been driving a BMW X5 for several years and have encountered engine shaking issues a few times, which can be quite annoying. The main reasons could be aging spark plugs or faulty ignition coils. Replacing the ignition coils cost me a few hundred bucks, and it had to be done at a professional shop. If there's a problem with the fuel system, like clogged fuel injectors or dirty gasoline, using low-grade fuel can easily cause shaking. A severely clogged air filter or excessive carbon buildup in the throttle body can also make the engine struggle to breathe. Worn or loose engine mounts are a common cause—when this part fails, vibrations transfer to the car, making it feel like an earthquake. Other potential issues include poor electrical contact in the ignition system or ECU faults, but the latter two require computer diagnostics. For daily driving, make sure to follow the maintenance schedule, prevent excessive carbon buildup, and regularly replace filters and spark plugs to avoid many problems. If you notice any issues, take the car to a 4S shop or a reliable repair shop immediately—don’t try to save small money and risk a major accident.
