hi just wanted to ask about my dash where is i funny light like a coil i thought it was the glow plugs but it could be a electrical problem an any one help

coils on the dash lights are glow plugs,

are they not going out or flashing, when were they changed last,

they were not changed since i had the car i have had it 3 years thanks for telling me do they need changing also i hav another problem do you know the right exusts to put on i want one that looks good and sounds good do you konw any where to get i good one