Description
This Mercedes antenna amplifier is a genuine OEM electronic component for the Mercedes W163 M-Class ML. Primary OEM number 1638200289. It is designed to boost the weak radio signal received by the antenna and to pass a stronger signal to the radio or head unit, so that reception stays clear and stable.
Its job is to amplify the signal from the antenna element and to supply the radio with a clean signal over the antenna cable. A properly working antenna amplifier supports good FM and broadcast reception, less noise and signal loss and correct operation of the radio and the audio system of the vehicle, which is especially useful on a tall SUV with a long antenna cable run.
Common signs of a faulty unit include weak or noisy radio reception, stations that fade in and out, no reception on some bands, a radio that works only close to a transmitter, or an amplifier that no longer receives its supply voltage. Because the amplifier sits in the antenna circuit, damaged cables, corroded connectors or a weak antenna can cause similar symptoms and should be checked as well. When the amplifier fails, the radio may lose most of its stations.
This is a used original part, removed from a vehicle and tested before sale. Match the exact OEM number 1638200289 before ordering and compare it with the number on the label of your unit. Professional installation is recommended, and a check of the antenna, the antenna cable, the connectors and the supply voltage where applicable should follow installation.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
