Cooling fan replacement
The cooling fan prevents engine overheating when there is no oncoming airflow, such as in traffic or at low speed.
Symptoms
- Temperature is fine on the highway but climbs in stop-and-go traffic.
What's included
- That is why failure often becomes apparent in Kyiv traffic: highway temperature is normal but rises in congestion. The cause is not always the fan itself; it may be a temperature sensor, relay, fuse, control unit or wiring. We check the entire circuit and command the fan on to determine whether its motor works. During replacement, we also inspect the shroud and radiator: a clogged radiator causes overheating even with a working fan.
Additional checks
- Checking the whole circuit and forcing the fan on
- Checking the condition of the fan shroud
Why it matters
The cause isn't always the fan itself — it can be the temperature sensor, relay, fuse, or wiring, so the whole circuit is checked. A clogged radiator overheats the car even with a working fan.
More details
The cooling fan protects the engine from overheating when there's no oncoming airflow — in traffic and at low speed. That's exactly why its failure often shows up specifically in Kyiv traffic: the temperature is normal on the highway, but the gauge climbs in a jam. The cause isn't always the fan itself: it can be the temperature sensor, the relay, the fuse, the control unit, or the wiring. We check the whole circuit and force the fan on to determine whether the fan motor itself works. During replacement we also check the condition of the shroud and radiator: a clogged radiator overheats the car even with a perfectly working fan.
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