I have changed the plugs 3 times in 2 years time. Well I guess first time they didnt change all 4 plugs but last time I was standing next to the mechanic the whole time and all 4 plugs were changed. After changing the plugs it wasnt really ok, the car did start up nicely but engine died out couple of times before it stayed on running. About a week later it felt again that atleast 1 plug had went out since the car didnt start up cold and I needed to keep the starter motor running before the car was able to start.. Its kind of hard to explain but I have had a bit struggle with the car for past 2 winters, in summer its super nice car and very reliable.
As far as i have heard the glow plugs dont go out as soon as the glow plug light from dashboard goes out but the plugs go out at some point when engine is warm enough?
I think last year when I took the car to Peugeot dealer to make diagnostics they found that cam sensor? was broken also besides the plugs. I didnt change this sensor since I forgot about it and it didnt seem to matter, can this be also related actuall?
Its from 1999 but I dont really know which exact model the engine is..