Why does the Magotan's water temperature rise particularly slowly?

[LeRuby]

The reasons why the Magotan's water temperature rises particularly slowly are: 1. No thermostat is installed or the thermostat is damaged; 2. Scale on the water temperature sensor can reduce its sensitivity, leading to inaccurate temperature readings; 3. A malfunction in the cooling fan circuit system can cause the engine to remain in forced cooling mode for extended periods; 4. Turning on the heater immediately after starting the car can slow the rise in water temperature, as the car's heating system relies on heat from the engine's antifreeze. Taking the 2020 Magotan as an example, it is a mid-size sedan with the following dimensions: length 4865mm, width 1832mm, height 1471mm, wheelbase 2871mm, fuel tank capacity 66L, and trunk capacity 533L.

[SanAriana]

I've been driving a Volkswagen Magotan for a while, and the most common reason for slow water temperature rise is the thermostat stuck in the open position. This component controls the coolant flow direction. If it fails, the coolant circulates directly for cooling, causing rapid engine heat loss. In cold weather, the gauge may barely move even after driving for hours. Another possibility is air bubbles trapped in the cooling system, hindering heat transfer. I recommend checking the coolant level and color – if it's low or dirty, it needs replacement. Get it fixed promptly; otherwise, fuel consumption may increase by about 15%, and winter defrosting efficiency will be compromised, leading to poor driving visibility. I've encountered this issue several times – post-repair, the water temperature returned to normal. Long-term neglect accelerates engine wear, which outweighs any temporary cost savings.

[LaylaFitz]

As a family car owner, when I encounter slow temperature rise in my Magotan, I first consider environmental factors: low winter temperatures combined with frequent short trips (like a 10-minute commute), where the engine doesn't fully warm up before shutting off. Another possibility is aged or ineffective coolant, leading to poor heat transfer. Try warming up the car for a few minutes before driving, or check if the radiator fins are clogged with dust. Once, I found that slight damage to the water pump impeller also caused slow flow. Don't worry too much, but if this persists, it's best to visit a shop to ensure driving safety. Long-term cold engine operation shortens its lifespan.

[BeauRose]

Slow engine warm-up is often attributed to common mechanical failures, with thermostat malfunction being the most prevalent - once opened, it fails to return, allowing coolant to continuously circulate through the radiator. Another possible cause is air pockets forming blockages in the cooling system. My recommendation: during cold starts, feel the temperature difference between the upper and lower radiator hoses - if both remain cold, it indicates a thermostat issue. Using a diagnostic scanner to read coolant temperature data provides more accurate results. Having experienced this myself, I advise addressing it promptly to prevent engine damage and avoid higher repair costs. While idling for a few minutes may provide temporary relief, it's not a permanent solution.