Why does my Suzuki Mehran overheat in traffic despite a full radiator?

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Why does my Suzuki Mehran overheat in traffic despite a full radiator?

My 2015 Suzuki Mehran starts to overheat when Im stuck in traffic o r at signals, even though the radiator is full. The temperature gauge rises quickly and only s when I start driving again. What could be causing this?

Gari Specialist asked on 24 Apr 2025 12:29:16 pm

1 Answer

20 views |

Gari Master - on 24 Apr 2025 12:39:27 pm

If your Mehran overheats only in traffic but cools down while driving, it’s often due to insufficient airflow through the radiator when the car is stationary. This usually points to a faulty radiator fan o r fan switch thermo switch. In older Mehrans, especially carburetor models, the fan might be directly wired o r dependent on a thermostat switch. If the fan doesn’t activate properly when the engine gets hot, there’s no cooling when you’re not moving.

Also, check the radiator fins for dust o r blockage, and ensure that the fan motor is strong and not weak o r spinning slowly. You can also install a manual fan switch if the automatic one is unreliable, a common local fix in Pakistan.