What are the causes of the ticking noise in BMW cars?
2 Answers
The causes of the ticking noise in BMW cars include severe engine carbon deposits and ignition system issues. Below are detailed explanations of the causes and solutions: 1. Severe engine carbon deposits: The most common cause of car shaking is a dirty throttle or excessive carbon deposits in the fuel injectors. Solution: Clean the fuel system and check if the idle speed motor has carbon deposits that need cleaning. 2. Ignition system problems: Check the condition of the spark plugs, high-voltage wires, and ignition coils. Poor performance of the ignition system or bad spark plug firing can also lead to such faults. Solution: Check if the spark plugs have excessive carbon deposits and replace them if necessary.
As a car repair shop owner, I frequently encounter BMW ticking noise issues, primarily caused by failed hydraulic lifters or loose timing chains. When these mechanical components age, they produce rhythmic tapping sounds. Some customers also complain about noises from accessory belt pulleys or air conditioning compressors, resembling continuous ticking. It's crucial to conduct a thorough inspection using diagnostic tools, as delays could lead to more severe failures like bearing wear or piston ring damage. I recommend immediate shop maintenance, including oil changes and clearance adjustments, to prevent complete engine disintegration.