How to Deal with High Temperature in Jetta Cars?
2 Answers
Check whether the radiator is leaking. If the radiator leaks, it will cause insufficient coolant, and the car will run at a high temperature as soon as it operates. Refill with better coolant. Some people prefer to add tap water to the radiator, but such water cannot meet the cooling requirements, leading to high radiator temperature. If the fan in front of the radiator rotates abnormally, it will prevent heat from dissipating quickly, causing the radiator temperature to rise. In this case, simply replace or repair the fan in time. A damaged thermostat can also cause high radiator temperature. Moreover, the thermostat is very difficult to install and requires professional handling.
When I see the temperature gauge maxing out, I usually turn on the hazard lights immediately and pull over, letting the engine idle for a few minutes to help dissipate heat. Never turn off the engine directly at this point, as high-temperature components may warp. I make it a habit to first feel the hood temperature, wait five minutes, then slowly open the radiator cap with a wet towel as padding—last year I wasn’t careful and got my hand scalded by steam. First, check the coolant level; if it’s below the minimum mark, top it up with distilled water as an emergency measure. Also, check if the radiator fan is spinning—a loose plug can cause it to stop. If the thermostat is stuck, the engine will overheat, and this requires disassembly for inspection. I always keep a jug of purified water in the spare tire well—last time on the highway, a leaking radiator was only manageable thanks to it until I reached the service area. If the issue can’t be resolved, call for a tow truck; driving further could cause cylinder scoring.
