Polo Mk3
Checking glow plug system
Glow plugs with burned electrodes
|
Burned electrodes on glow plugs are frequently caused by faulty injectors. Damage of this nature is not due to faults in or on the glow plugs. If damage of this nature is found -arrow- it is not sufficient merely to replace the glow plug. The injectors must also be tested for opening pressure and leakage . |