Description
This Mercedes alarm module is a genuine OEM electronic control component for the Mercedes W202, W208 and W210 models. Primary OEM number 2028208310. It is designed to protect the vehicle against unauthorized entry by monitoring the door, trunk and hood contacts and by triggering the acoustic and visual alarm signals.
Its job is to arm the anti-theft alarm when the vehicle is locked, to read the signals from the contacts and sensors and to switch on the horn and the hazard lights if a violation is detected. The module also works with the interior monitoring, the horn and the hazard lights, and it reports the state of every door, the trunk and the hood to the vehicle network. A properly working alarm module supports reliable protection of the vehicle, correct arming and disarming with the key and correct operation of the security system.
Common signs of a faulty unit include an alarm that sounds without a reason, an alarm that does not arm or does not sound, a blinking alarm indicator that stays on, a battery that drains overnight or a central locking system that behaves strangely after locking. When the module fails, the vehicle may be left unprotected or the alarm may repeatedly disturb the owner.
This is a used original part, removed from a vehicle and tested before sale. Match the exact OEM number 2028208310 before ordering. Professional installation is recommended, and a diagnostic scan, a check of the door and hood contacts and key synchronization or coding 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/
