The main symptom would be that it did not work
80000 miles or 10 years
most coolant temp sensors are located on the intake or the thermostant housing, but i have seen some on the heads
The module is on the front right-hand side of the engine compartment to the right of the front fuse box wedge, slightly below it, next to the wing.
low oil pressure could be bad bearings or stuck relief valve
the corsa 1.3 cdti is chain driven hence no timing belt but they are prone to braking if they do a lot of short trips and you do need special tools to change it,they didn't make a 1.4dti on a 55 plate
it turns clockwise (opposite to normal bolts) don't try turning it the same way you would as a normal bolt otherwise it will snap then you will have to drill it out.
where is the oil filter on avectra1.9 cdti
No Mine didnt, Just finished doing one. I think that's why they break to protect the valves. also to help the valves are at 90 degrees to the piston
Yes, a starter motor can be placed in a Vectra CDTI 55.