Engine tempp reads 27 degrees

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! If your 2015 Jetta’s engine temperature gauge is reading 27°F, it’s likely not the engine temp but the outside temperature display you’re looking at. The engine temperature should be much higher once warmed up—usually around 190°F. If the gauge says otherwise and stays stuck low even after driving, it could be a faulty coolant temperature sensor or thermostat. To answer your question: If the engine runs fine and warms up normally (heater works, no warning lights), it’s probably safe to drive. But if the temp is genuinely off, it could affect fuel efficiency or emissions long-term. Keep an eye on it, and consider having it checked if the issue sticks around. If you need any further advice or want help finding a trusted RepairPal shop in your area, please feel free to call us at 877-913-1554.