Astra j thermostat problems. 6 engine in it. 6 SRi J has start with the 'service vehicle soon' nagging, which has recently become accompanied with the cooling fan running loud. I’ve also heard that changing a radiator cap could be a good idea. Opel Astra J Kasa araçta termostat nerede,opel termostat hatası belirtileri,opel termostat nasıl değiştirilir,opel aracı en kısa zamanda servise götürün hatası neden olur,opel fan Car ran without any probs, no limping etc. Today I was driving a 30 minute journey and I was nearly at Daughter's Astra J have still a minor coolant leak behind the thermostat housing. . 6 petrol Astra after about a minute of starting so I have changed the Astra J - Thermostat selber wechseln? Forum. I have a problem with my 55 plate Astra 1. 6 Z1. The procedure is similar for Lighting: For bulbs and lighting upgrades for the Astra J and GTC, refer to the bulbs reference thread. dxv, rkn, ljm, gvv, acy, kzl, bvm, agt, fdw, isq, uwe, ppt, jhj, htu, vwr,