Mercedes-Benz 7-Pin Tail Light Connector OEM A2055451826 | W205 C-Class W213 E-Class

Mercedes-Benz 7-Pin Tail Light Connector – OEM A2055451826 / A2055451726 | W205 C-Class

Blue Female

$21.36

$21.36 $44.50

Mercedes-Benz 7-Pin Tail Light Connector – OEM A2055451826 / A2055451726 | W205 C-Class

$21.36

$44.50 $21.36

Color Blue Female Blue Female 15CM White Female White Female 15CM

Description

Mercedes-Benz 7-Pin Tail Light Connector – OEM A2055451826 / A2055451726 | W205 / W213

Direct OEM-specification replacement for the Mercedes-Benz 7-pin tail light harness connector. Cross-references OEM part numbers A2055451826 (A 205 545 18 26), A2055451726 (A 205 545 17 26), and TE Connectivity part numbers 3-2208170-1 and 2-2208170-1. Used in LED tail light assemblies on W205 C-Class and W213 E-Class platforms. Available bare or with 15cm pre-wired leads.

OEM Part Number Cross-Reference

OEM Number	Brand / Format
A2055451826 / A 205 545 18 26	Mercedes-Benz — left side
A2055451726 / A 205 545 17 26	Mercedes-Benz — right side
3-2208170-1	TE Connectivity — female (socket side)
2-2208170-1	TE Connectivity — male (plug side)

7-Pin Tail Light Circuit Function

Pin Group	Function	Failure Symptom if Corroded
Pins 1–2	Tail / position light LED power and ground	Tail light out, position light failure
Pins 3–4	Brake light LED power and ground	Brake light not illuminating, MOT failure
Pins 5–6	Turn signal LED power and ground	Rear turn signal not functioning
Pin 7	LIN bus / diagnostic signal to tail light module	Tail light module fault code, B-code logged

Key Specifications

Attribute	Detail
Pin Count	7-Pin
OEM Part Numbers	A2055451826 / A2055451726
TE Part Numbers	3-2208170-1 / 2-2208170-1
Housing Material	Nylon (PA66)
Wire Option	Bare connector / 15cm pre-wired leads
Application	LED tail light assembly harness
Compatible Brands	Mercedes-Benz

Compatible Applications

Mercedes-Benz C-Class W205 – LED tail light harness (left and right)
Mercedes-Benz E-Class W213 – Tail light assembly connector
Mercedes-Benz GLC X253 – Shared W205 tail light architecture

Frequently Asked Questions

Q: My Mercedes tail light shows a fault in STAR Diagnosis but the LEDs look fine — is it the connector?
A: 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.

Q: Are terminals included?
A: Yes, terminals are included with all variants.

Free Shipping Over $199