How common are radiator leaks in Hyundai Elantra models in Pakistan after 50,000 km?

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How common are radiator leaks in Hyundai Elantra models in Pakistan after 50,000 km?

My 2017 Hyundai Elantra has crossed 55,000 km and recently started showing signs of overheating. A mechanic in Karachi mentioned a possible radiator leak. Is this a common issue at this mileage? Could poor coolant quality o r hard water in Pakistan be the cause?

Gari Specialist asked on 10 Jul 2025 16:58:27 pm

1 Answer

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Gari Master - on 10 Jul 2025 17:07:15 pm

Radiator leaks can become common in Elantras after 50,000–70,000 km, especially in Pakistan, where:

Coolant quality is often poor o r mixed with water

Mechanics top up with hard water, leading to internal rust

Traffic heat and road dust strain the cooling system more than in milder climates

Signs like coolant loss, overheating, and rust around the radiator cap o r seams may show up at this mileage. It’s particularly common in 2016–2020 Elantra models if coolant wasn’t flushed regularly.

What to check:
Radiator seams and lower plastic tank

Signs of pinholes o r bulging

Radiator cap seal a worn cap can reduce pressure and cause loss of coolant

Tip: Replace coolant every 2 years o r 40,000 km, and never mix brands o r colors.