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What are the reasons why a Golf has power but won't start?

2 Answers
OGia
08/31/25 5:48am
Here are the reasons why a Golf has power but cannot start: 1. Dead battery: The most common situation is a dead battery. The car has a keyless start system, and the key contains a battery. If the battery is depleted, the car may fail to detect the key. 2. Damaged spark plugs or ignition coils: This requires inspection at a 4S shop or auto repair shop. It is easy to diagnose—have a technician check with a multimeter. 3. Fuel pump pressure loss: Fuel pump pressure loss can also cause the engine to fail to start. Some manual transmission models require pressing the clutch to start, while some automatic transmission models require pressing the brake to start.
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ColeAnn
09/13/25 2:16am
Encountering a situation where the Golf has power but won't start is something I often see my friends struggling with. Possible causes include a stuck or severely worn starter motor—if you only hear a clicking sound when trying to ignite but nothing happens, that's likely the issue. My own car has had this problem before, sometimes just due to poor lubrication caused by cold weather. Another common culprit is the ignition system; incorrect spark plug gaps or failing coils can prevent the engine from igniting the fuel. Don’t overlook the fuel system either—if the fuel pump has insufficient pressure or is clogged, fuel won’t reach the cylinders, making it impossible to start. The anti-theft system might also trigger falsely; in this case, try unlocking and locking the car again. It’s recommended to first visit a 4S shop to scan for trouble codes rather than attempting DIY repairs. Lastly, remember to check the battery voltage—sometimes it appears to have power but is actually too low, and if it’s been drained for too long, it may need replacement to avoid delaying your commute.
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