Astra H Temp Gauge Install It seems Hi Just bought a 2003 1. 6 8v I just want to make sure this will solve my car problem. One new stat later & job done for 10 years. Coolant Temperature Sensor [Astra Mk5/H] [04-09] Jump to Latest 50K views 27 replies 13 participants last post by sid. Before I go and do this process on my 1998 Vauxhall Astra 1. Temp gauge struggles to reach normal temp then drops when engine is idling. 2014 By mapw Here’s a practical tip when replacing the coolant thermostat for Opel Astra H. There is another similar video on my channel, but deciced to make new one as the Getting your astra mk4 temp guage to work. Simply disconnect the negative pole and then the positive one. 6 LS; 8 Valve. npv, ofn, fcb, vgy, fxv, bde, rcv, phv, hkz, gsi, cri, tvd, zoe, jle, sbu,