mechanical damage to the mirror or the part housing;
clouding of the reflective surface;
fault of the mirror motor;
wiring fault;
breakage or damage to the control wires;
damage or loosening of the hinge bracket;
malfunction of the mirror electric heating.
Symptoms of rear-view mirrors faults
slow movement of the mirror actuator;
reduced visibility;
absence of some motor functions;
mirror rattling or wobbling while driving.
Causes of mirrors faults
mechanical damage;
sudden temperature drops;
looseness of fastening;
short circuit, oxidation or burnout of wiring;
insufficient lubrication of drive components;
blown fuses.
Diagnostics
Faulty rear-view mirror reflective surface can be determined without special expertise or tools, with a simple visual inspection. Problems of the motor must be diagnosed only in a service shop. Modern cars electric drive system includes a sufficiently large number of contacts, which need to be tested individually.
Special requirements for the frequency of rear-view mirrors diagnosis do not exist. Carrying out a detailed analysis of the work is required after signs of malfunction.
Repair and replacement of mirrors
With additional features mirrors are very complex systems. Their replacement or repair require specialized knowledge. At malfunction of any mirror component it can be replaced. However, repair of electrical wiring must be carried out only at a service station.
Complete replacement of a rear-view mirror is required only in case of serious damages that occur in accidents or crashes. Damage to the cover does not require replacement of the entire system, but it is important to establish a completely similar model.
