With this kind of repair work, the customer complains that radio reception is interrupted when the rear-window heater is switched on.
The signal interference in this case is caused by damaged heater wires, i.e. damaged filaments in the rear window.
In order to exclude other possible causes of malfunction, electrical and mechanical system tests (in accordance with vehicle manufacturer specifications) and also a fault code query using a suitable diagnostic unit should be carried out. If no other faults are found, the rear window has to be replaced.
Please note that such repair work should only be carried out by an authorised specialist workshop and that the vehicle manufacturer's repair and maintenance instructions are to be observed!
Important safety information
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