{"product_id":"mercedes-benz-7-pin-tail-light-connector-oem-a2055451826-w205-c-class","title":"Mercedes-Benz 7-Pin Tail Light Connector – OEM A2055451826 \/ A2055451726 | W205 C-Class","description":"\u003ch2\u003eMercedes-Benz 7-Pin Tail Light Connector – OEM A2055451826 \/ A2055451726 | W205 \/ W213\u003c\/h2\u003e\n\u003cp\u003eDirect OEM-specification replacement for the Mercedes-Benz 7-pin tail light harness connector. Cross-references OEM part numbers \u003cstrong\u003eA2055451826\u003c\/strong\u003e (A 205 545 18 26), \u003cstrong\u003eA2055451726\u003c\/strong\u003e (A 205 545 17 26), and TE Connectivity part numbers \u003cstrong\u003e3-2208170-1\u003c\/strong\u003e and \u003cstrong\u003e2-2208170-1\u003c\/strong\u003e. Used in LED tail light assemblies on W205 C-Class and W213 E-Class platforms. Available bare or with 15cm pre-wired leads.\u003c\/p\u003e\n\n\u003ch3\u003eOEM Part Number Cross-Reference\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eOEM Number\u003c\/th\u003e\n\u003cth\u003eBrand \/ Format\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA2055451826 \/ A 205 545 18 26\u003c\/td\u003e\n\u003ctd\u003eMercedes-Benz — left side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA2055451726 \/ A 205 545 17 26\u003c\/td\u003e\n\u003ctd\u003eMercedes-Benz — right side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3-2208170-1\u003c\/td\u003e\n\u003ctd\u003eTE Connectivity — female (socket side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2-2208170-1\u003c\/td\u003e\n\u003ctd\u003eTE Connectivity — male (plug side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e7-Pin Tail Light Circuit Function\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePin Group\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003cth\u003eFailure Symptom if Corroded\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePins 1–2\u003c\/td\u003e\n\u003ctd\u003eTail \/ position light LED power and ground\u003c\/td\u003e\n\u003ctd\u003eTail light out, position light failure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePins 3–4\u003c\/td\u003e\n\u003ctd\u003eBrake light LED power and ground\u003c\/td\u003e\n\u003ctd\u003eBrake light not illuminating, MOT failure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePins 5–6\u003c\/td\u003e\n\u003ctd\u003eTurn signal LED power and ground\u003c\/td\u003e\n\u003ctd\u003eRear turn signal not functioning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin 7\u003c\/td\u003e\n\u003ctd\u003eLIN bus \/ diagnostic signal to tail light module\u003c\/td\u003e\n\u003ctd\u003eTail light module fault code, B-code logged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin Count\u003c\/td\u003e\n\u003ctd\u003e7-Pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM Part Numbers\u003c\/td\u003e\n\u003ctd\u003eA2055451826 \/ A2055451726\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTE Part Numbers\u003c\/td\u003e\n\u003ctd\u003e3-2208170-1 \/ 2-2208170-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eNylon (PA66)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Option\u003c\/td\u003e\n\u003ctd\u003eBare connector \/ 15cm pre-wired leads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eLED tail light assembly harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eMercedes-Benz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMercedes-Benz C-Class W205 – LED tail light harness (left and right)\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz E-Class W213 – Tail light assembly connector\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz GLC X253 – Shared W205 tail light architecture\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: My Mercedes tail light shows a fault in STAR Diagnosis but the LEDs look fine — is it the connector?\u003c\/strong\u003e\u003cbr\u003eA: Mercedes LED tail light modules communicate via LIN bus (Pin 7). A corroded Pin 7 causes the tail light module to lose communication with the BCM, logging a fault code even if the LEDs are physically illuminating. Inspect the 7-pin connector before replacing the tail light assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are terminals included?\u003c\/strong\u003e\u003cbr\u003eA: Yes, terminals are included with all variants.\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"Blue Female","offer_id":47831716987125,"sku":"14:202642826#Blue Female","price":21.36,"currency_code":"USD","in_stock":true},{"title":"Blue Female 15CM","offer_id":47831717052661,"sku":"14:200004890#Blue Female 15CM","price":34.44,"currency_code":"USD","in_stock":true},{"title":"White Female","offer_id":47831717019893,"sku":"14:200004889#White Female","price":21.36,"currency_code":"USD","in_stock":true},{"title":"White Female 15CM","offer_id":47831717085429,"sku":"14:200004891#White Female 15CM","price":34.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/S293de15694c8420bb78be05a0f1a9d16A.webp?v=1773634158","url":"https:\/\/www.csldmcml.com\/products\/mercedes-benz-7-pin-tail-light-connector-oem-a2055451826-w205-c-class","provider":"Cable Parts Online","version":"1.0","type":"link"}