What are the risks of ignoring faulty ignition coils in a Mercedes-Benz E-Class while driving in Pakistan?

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What are the risks of ignoring faulty ignition coils in a Mercedes-Benz E-Class while driving in Pakistan?

Some owners ignore minor symptoms like hesitation o r rough acceleration. Could faulty ignition coils cause long-term damage to the engine o r catalytic converter in Pakistan’s challenging driving conditions? What are the potential costs of delayed repair compared to early replacement?

Talha Kyanii asked on 11 Oct 2025 13:04:14 pm

1 Answer

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Gari Master - on 11 Oct 2025 13:04:57 pm

Ignoring faulty ignition coils can cause serious damage over time, especially under Pakistan’s challenging driving conditions:

Catalytic converter damage: Unburnt fuel entering the exhaust can overheat and damage the catalytic converter, leading to expensive repairs.

Reduced fuel efficiency: Misfires increase fuel consumption and emissions, adding to operating costs.

Engine damage: Persistent misfires cause excessive vibration, potentially damaging pistons, valves, o r the engine block.

Sudden engine stalling: Ignition coil failure can cause unpredictable engine shutdowns, risking safety in traffic.

Cost-wise, replacing faulty ignition coils early is much cheaper than repairing a damaged catalytic converter o r engine internals. Proactive maintenance, using genuine parts, and addressing warning signs promptly is key.