Replace a Spare part Window regulator – a defective one or if the limit of use has been already reached. Find out useful information about Window regulator
Faults of window raiser
drive failure;
control unit failure;
lifting mechanism failure.
Symptoms of window raiser failure
slow closing of the window;
creaking noises when closing or opening the window;
no lock of open windows;
jerking glass;
random closing or opening;
jamming window;
button does not respond before starting the engine.
Causes of window raiser failure
blown fuse;
no contact in sockets;
breakage or damage to the power supply or the signal wires;
short circuit;
mechanical damage;
damage to the cable;
ceasing drive motor brushes;
wear of reduction gear;
low level of lubricant on the rail surface.
Diagnostics
If the power window fuse is not damaged, proceed to check the voltage. This requires a multimeter. In the absence of voltage, perform the checks of the control unit, the wiring integrity, the relay serviceability. Then start the engine, press the power window button, the lack of response indicates a problem with brushes. Lower and lift the window several times. Noise shows gear reducer bearing failure. Check the window cable for damage and scuffs.
Repair and replacement of window raiser
The first step is to lubricate the rails and the window regulator itself. Then pull the rotor by removing the motor casing. You can get rid of the soot on the brushes using sandpaper. It is necessary to clean the button contacts. In the case of mechanical damage, replace them. You should also replace reducer gear when worn. If the glass does not lift when the connection of the drive and the control unit is correct, then the drive has failed. You should replace it. If there is a serious problem (disrupted fastening, broken cable), it is necessary to replace the whole kit.
