Hi Expert,

>>>I have a Honda Civic VTi :

>>>I had a problem some months ago with a faulty radiator. I got it replaced with a second hand one. I have been using it for 2 months without any problem.

>>>Now after some 70 km of driving, the level of water in Radiator is decreasing while that of bottle is OK.

>>>Please reply urgently.

Regards
Rite

I would fill radiator, and keep an eye on level. May have had air, last fill.
No drips or leaks? How does oil look?

Thanks Stratmando,

>>>I got the radiator checked last weekend. No leak!

>>>For two days the level is OK. May be engine has to be hot.

>>>I suspect the level of coolant in overflow bottle - the mechanic put it well above max. what do u think?

Regards
Rite

I would keep an eye on it. I don't know I would over fill oveflow bottle. Maybe bring back
Down to line. If it overflows you might feel you have a problem.

Rite, also, Please be sure to check your Fusible link and Relays for the radiator.
These small gadgets , even if not fully blown out can be faulty. These links operate as the "brain of the unit". The radiator is like the secondary component. If you remove the fusible linK the system will fail to function at all.

Once, my car was extremely hot and the fan/radiator was diagnosed as the issue. Yet, it was actually a $5.00 relay which cured the problem. Since your system has no leaks etc, you may be running hot due to a minor defect within a relay or fuse.

Replace them anyway and let us know what happens.

Hope this helps.
Tomy M. Hall, MS