Do Pakistani mechanics report that low-quality coolant o r mineral-heavy water contributes to thermostat corrosion in Changan Kalam?

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Do Pakistani mechanics report that low-quality coolant o r mineral-heavy water contributes to thermostat corrosion in Changan Kalam?

Corroded parts affect accuracy. Is this due to user negligence o r the need for more robust components?

Qalb E Momin asked on 18 Jun 2025 18:11:46 pm

1 Answer

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Car Mechanic Expert - on 18 Jun 2025 18:15:35 pm

✅ Yes — this is a known issue.

Problem: Users often fill with tap water o r low-grade green coolant, causing:

Lime scale buildup

Thermostat corrosion o r jamming

Mechanic reports: Thermostats removed show rust o r white calcification

📘 Recommendation: Use pre-mixed long-life coolant e.g., ethylene glycol with anti-corrosives and avoid underground o r mineral water.