Stuck Thermostat – Diagnostic consultation and Engine Carbon Clean on Vauxhall Astra 1.8 petrol (2008 – 104,910 miles)
⚠️ Thermostats do an important job at keeping engine temperatures at just the right level so the engine is at peak fuel efficiency. 🌡️ Misbehaving thermostats can lead to no end of problems (and unless you know what to look for will go unnoticed as they typically don’t trigger diagnostics