Mercedes-Benz GLK350 slight hesitation when starting on Mercedes-Benz GLK350

Some Mercedes-Benz GLK350 owners report experiencing slight hesitation when starting their vehicles, which may be attributed to several potential causes. Common issues include fuel supply problems, faulty engine sensors, and ignition issues such as bad spark plugs or ignition coils. Additionally, sensor or switch failures, like those involving the crankshaft position sensor or brake light switch, can lead to starting difficulties. Some owners also note throttle lag or engine hesitation when accelerating from a standstill, potentially caused by previous aggressive driving. Faulty components, such as a failing throttle pedal sensor, may further contribute to these hesitations. Other factors, including a malfunctioning voltage regulator or a vacuum leak, can also cause hesitation during acceleration. It is recommended that affected owners seek a thorough inspection by a qualified mechanic to effectively diagnose and resolve these issues.