What causes the Sagitar to not start, make a clicking sound, and have all warning lights on?

[OLily]

Here are the reasons why the Sagitar may not start, make a clicking sound, and have all warning lights on: 1. Reason one: Frequently placing the car key near electronic devices such as mobile phones, computers, or TVs can cause interference with the low-intensity radio waves in the key, or there may be strong radio waves nearby, such as from TV towers, airports, or power plants, leading to a 'failure' in the one-touch start function. 2. Dead key battery: If the key shows signs like reduced remote control distance or decreased sensitivity, it's a warning that the key battery is running low. With a dead battery, the one-touch start function won't work properly, and the battery should be replaced as soon as possible. 3. Vehicle malfunction: In cases of extreme situations like fuel system issues, dead battery, or short circuits in electronic components, it is advisable to directly call the 4S store staff for assistance.

[MacAsher]

My Sagitar had the same issue last time – clicking sounds when trying to start but the engine wouldn’t turn over, and all the warning lights came on, which was really scary. This problem is most likely caused by a dead battery, either due to aging or leaving the headlights on, which drains the power. The clicking noise is the starter relay switching, but the voltage is too low to crank the engine. The warning lights all illuminate because the low voltage triggers false error codes from the ECU—it doesn’t mean all systems are actually faulty. First, check if the battery terminals are corroded. If a multimeter shows voltage below 12V, don’t bother trying further. If jump-starting works, drive for half an hour to recharge the battery; otherwise, you’ll need a new one. If jump-starting fails, the starter might be seized or the alternator could be faulty, requiring a tow truck. Regularly test your battery voltage—batteries older than three years are prone to failing in winter.

[SaraMarie]

After over a decade of repairing cars, I frequently encounter this issue with the Sagitar - it makes a clicking sound, fails to start, and warning lights come on. Nine times out of ten, it's a battery problem. The starting moment requires high current, and an aged battery can't supply enough, resulting in the clicking sound while the voltage suddenly drops, causing all vehicle computers to go into a frenzy of alerts. Don't repeatedly attempt to start it and damage the starter; the most reliable solution is to jump-start it using a friend's car. If it starts, drive to an auto repair shop to test the battery's lifespan and charging voltage. If jump-starting doesn't work, focus on checking the starting circuit: stuck starter relay, poor contact in the ignition switch, or a blown main fuse. Additionally, Volkswagens are prone to current leakage, and forgetting to turn off an installed dash cam can secretly drain the battery. For oxidized battery terminals, use boiling water to remove the white crystalline deposits.

[DaniellaAnn]

The ticking sound when starting the Sagitar is most likely due to a dead battery. When the voltage is insufficient, the starter solenoid switch repeatedly engages, creating this noise, while the onboard computer triggers all alarms due to low voltage. Priority actions: Open the hood and check the battery indicator—green means normal, black means it needs replacement. Inspect the terminals for looseness or corrosion. If you have a battery tester, replace the battery immediately if the health value is below 40%. After jump-starting, drive for half an hour and then measure the voltage; it should reach 14V at idle. If the starter doesn’t turn at all, it could be a faulty starter relay or a blown 50A main fuse. For cars with modified audio systems, check the additional fuses. Volkswagen’s electrical systems are sensitive—reversing the polarity during jump-starting can fry the computer. When replacing the battery, opt for a model with at least 70AH capacity.