What causes the MG6 to have weak ignition?
3 Answers
The reasons for the MG6's weak ignition are: 1. Battery depletion due to prolonged parking; 2. Damaged starter relay; 3. Spark plug carbon buildup and erosion; 4. Severe wear of the starter motor carbon brushes. The MG6's body dimensions are: length 4704mm, width 1848mm, height 1466mm, with a wheelbase of 2715mm, a fuel tank capacity of 50 liters, and a trunk capacity ranging from 499 to 1383 liters. The MG6 is equipped with a 1.5T turbocharged engine, delivering a maximum power of 133kW and a maximum torque of 285Nm, paired with a 6-speed manual transmission.
My MG6 also experienced weak starting before. Battery aging is the most common cause, especially for cars used for three or four years or more. The battery's power storage capacity declines, making the starter motor turn noticeably slower during cold starts in the morning. Additionally, oxidized battery terminals can cause poor contact, which can be resolved by removing and sanding them with sandpaper. Worn starter motor carbon brushes can lead to insufficient power, requiring disassembly for repair. Alternator failure can also indirectly affect starting because it prevents the battery from being fully charged while driving. I recommend first testing the battery voltage; if it's below 12 volts, it should be replaced. Also, check if the engine belt is slipping, which could affect the alternator's performance, as these issues can create a chain reaction.
Difficulty in starting can be caused by multiple system issues. The first suspect should be the battery condition. Use a multimeter to check the static voltage; if it's below 11.8 volts, the battery likely needs replacement. Starter motor failures are also common—poor contact in the solenoid switch or a short circuit in the rotor coil can slow down the starter's rotation. For the fuel system, prolonged use of low-quality gasoline can clog the fuel injectors, leading to insufficient fuel supply during cold starts. The ignition system should not be overlooked either, as excessive spark plug gaps or aging ignition coils can weaken spark energy. My personal troubleshooting method involves first jump-starting the vehicle for testing. If it starts normally with a jump, the issue is likely the battery. If starting remains sluggish, inspect the starter motor, and finally verify whether the fuel pressure meets specifications.
