{"product_id":"07-09-mercedes-s550-ecu-ecm-engine-computer-a-273-153-12-91-0261209379-tested","title":"07-09 MERCEDES S550 ECU ECM ENGINE COMPUTER A 273 153 12 91 0261209379 TESTED","description":"\u003ch3\u003ePart Number\u003c\/h3\u003e\r\n\u003cdiv class=\"section\"\u003e\r\n\u003cp\u003ePlease match the following 0 261 209 379. We recommend matching the following but believe your MB shop can update this: A 273 153 12 91\u003c\/p\u003e\r\n\u003c\/div\u003e\r\n\u003ch3\u003eFitment\/Interchange\u003c\/h3\u003e\r\n\u003cdiv class=\"section\"\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eYou must match your part number exactly as seen above. If any numbers are off compared to your original it will not work properly.\u003c\/li\u003e\r\n\u003cli\u003eEcu will require programming or coding to your vehicle or vehicle's security system and is not plug and play. You will need to take this to your local BMW\/Mercedes\/VW \"IMPORT SHOP\" for programming. Your dealer will more than likely refuse to perform the programming or say it can't be done.\u003c\/li\u003e\r\n\u003cli\u003eEcu will fit 2007-2009 S550 models with an exact part number match. This may fit other vehicles with the same part numbers, programming is a must!\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003ch3\u003eTech Notes\u003c\/h3\u003e\r\n\u003cdiv class=\"section\"\u003e\r\n\u003cul\u003e\r\n\u003cul\u003eECU has been tested with our state of the art vehicle simulator which tests over 25 circuits of the ECU! Some of those are listed below:\u003c\/ul\u003e\r\n\u003c\/ul\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eReference Voltage Good!\u003c\/li\u003e\r\n\u003cli\u003eECU powered up and has communication!\u003c\/li\u003e\r\n\u003cli\u003eECU fuel pump\/main relay test good!\u003c\/li\u003e\r\n\u003cli\u003eThe problem areas on the PCB that cause a no crank with the cooling fan running have been tested good or repaired.\u003c\/li\u003e\r\n\u003cli\u003eECU injectors\/coils circuits test good\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003ch3\u003eInstall Notes\u003c\/h3\u003e\r\n\u003cdiv class=\"section\"\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eDisconnect the negative terminal of the battery. Make sure the battery connector is not touching the battery post.\u003c\/li\u003e\r\n\u003cli\u003eDisconnect and remove the module to be replaced.\u003c\/li\u003e\r\n\u003cli\u003eInstall and connect the replacement module.\u003c\/li\u003e\r\n\u003cli\u003eConnect the negative terminal of the battery.\u003c\/li\u003e\r\n\u003cli\u003eEcu will now need programming or coding to your vehicle.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003ch3\u003eItem Condition\u003c\/h3\u003e\r\n\u003cdiv class=\"section\"\u003e\r\n\u003cul\u003e\r\n\u003cli\u003ePins perfect, none are broken or bent\u003c\/li\u003e\r\n\u003cli\u003eMounting points are perfect!\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003c\/div\u003e\r\n\u003ch3\u003eWarranty \/ Optional Core Return\u003c\/h3\u003e\r\n\u003cdiv class=\"section\"\u003e\r\n\u003cp\u003eThis ECM comes with a 90 day warranty from the date of purchase. Please keep a copy of your purchase record which we will send with your item.\u003cbr\u003e\u003cbr\u003eIf you would like to send your ecu back for a $30 core refund please let us know during checkout and we will include a prepaid return label with your purchase. Once the core returns we will issue your partial refund promptly. It's that simple. This is optional and you are not obligated to participate.\u003c\/p\u003e\r\n\u003c\/div\u003e","brand":"Mercedes-Benz","offers":[{"title":"Default Title","offer_id":32782404878421,"sku":"A 273 153 12 91 0261209379","price":429.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2919\/3002\/products\/z_5480_0_0_1104a96d-418b-4a36-9449-c92bafbb7463.jpg?v=1686259656","url":"https:\/\/www.yps-usa.com\/products\/07-09-mercedes-s550-ecu-ecm-engine-computer-a-273-153-12-91-0261209379-tested","provider":"Your Part Source","version":"1.0","type":"link"}