Civic X heat up issue

[usamaahsan4221]

Aoa,
I have Honda Civic 2018 model and 114000km milage. The car is smooth with 12.5-13km/litre average in city and 17-18 on motorways. But recently I am facing engine heatup issue on long travels especially on Kalar Kahar hills (ac turned off). The coolant is full and I also had the radiator serviced a week ago but still having this issue. Is anyone else facing same issue with civicx? or can someone suggest good mechanic in rwp/isb area who can check properly

[hash4u]

A grande came to a friend's shop for exactly same issue
The radiator was full of sludge
Anyways since that didnt work for u
Other things need to b checked
@dani_kk can u check

[the_mira_guy_08]

Sir was the coolant ever replaced? Coolant change every 5 years is a must.

[sardarg]

sir @usamaahsan4221 does it heat up on AC only ? YES ?

You shall ask your car aircon guy to check of head pressure / expansion valve.

[usamaahsan4221]

Yes I changed teh coolant (5-6 litres) with radiator service

[usamaahsan4221]

No it heats up without AC on Kalar Kahar hills