Reasons for Volkswagen Sagitar making abnormal noise and failing to start when ignited?
3 Answers
Car ignition abnormal noise and failure to start may be due to starter problems, insufficient battery power, low voltage, or the gear not being in P position when starting. Reasons for ignition failure: The car may fail to start due to insufficient battery power, caused by excessive external electrical devices not being turned off, leading to battery drain; low voltage can also prevent the car from starting. The reason for low voltage may be an old battery that has aged, resulting in reduced stored power. Precautions: Pay attention to proper car usage habits, ensure all power is turned off when exiting the car. If the battery warning light on the dashboard illuminates, immediate repair is necessary.
The Volkswagen Sagitar makes strange noises when starting but fails to ignite, which is quite common in my experience, especially if the car is an older model or lacks regular maintenance. The most common cause is a problem with the starter motor. When the starter's gear slips or wears out, it produces a clicking sound, as if the gear is spinning freely, completely failing to start the engine. At the same time, low battery voltage can also cause similar noises—if the battery charge is insufficient, the starter operates unevenly, generating abnormal sounds. Another possibility is a fuel system malfunction, such as a non-functioning fuel pump, which prevents sufficient fuel from reaching the engine, leading to startup failure accompanied by a slight buzzing noise. Sometimes, it could be due to a faulty ignition coil or sensor, like a failed crankshaft position sensor, which misleads the system into preventing startup. In any case, avoid forcing multiple ignition attempts, as this can easily damage more components. It's best to have it checked at a repair shop or a 4S dealership to prevent minor issues from escalating. Regular battery checks and starter component replacements can help prevent such problems.
Last time, my Sagitar made a clicking noise but failed to start completely during ignition. After inspection, it turned out to be caused by an old battery with insufficient power. Specifically, when the battery voltage drops below the normal level, the starter motor lacks enough electricity and starts making abnormal noises, resembling metal friction sounds. Additionally, poor contact in the starter wiring, such as corroded or loose wires, can cause unstable current flow and produce noises. Other factors include spark plug issues or a clogged fuel filter, both of which can affect smooth starting. I recommend first checking if the battery terminals are clean and tight, or trying a jump start to see if the car can start. If that doesn’t work, tow the car for repairs immediately to avoid being stranded halfway. For regular maintenance, it’s advisable to perform battery upkeep every six months to extend its lifespan.
