Mercedes-Benz 16-Pin Front Radar Sensor Wire Harness Connector – OEM A0001532222 | Male & Female | ACC / AEB

The OEM A0001532222 is a 16-pin connector used in Mercedes-Benz front radar sensor harnesses for Adaptive Cruise Control (ACC), Active Brake Assist (AEB), and PRE-SAFE systems. The 16-pin configuration carries radar signal processing, CAN bus, Ethernet (for high-bandwidth radar data), power, ground, and diagnostic circuits for the Mercedes-Benz long-range radar (LRR) module. Available in Male and Female variants, bare or with 15cm pre-wired leads.

Key Specifications

• OEM Part Number: A0001532222
• Pin count: 16-pin
• Gender options: Male / Female
• Housing material: Nylon (PA66)
• Available as: Bare connector or 15cm pre-wired leads
• Application: Front long-range radar (LRR) sensor harness
• Compatible brands: Mercedes-Benz

16-Pin Radar Circuit Assignment

• Pins 1–2: Power supply (12V) and ground
• Pins 3–4: CAN High / CAN Low (radar module CAN bus)
• Pins 5–6: Automotive Ethernet (100BASE-T1 — high-bandwidth radar data to ADAS domain controller)
• Pins 7–8: Radar signal output A (primary target detection data)
• Pins 9–10: Radar signal output B (secondary / redundant target data)
• Pins 11–12: Radar module diagnostic / wake-up signal
• Pins 13–14: PRE-SAFE signal (emergency braking trigger output)
• Pins 15–16: Radar module enable / ACC system enable signal

Compatible Mercedes-Benz Models

• C-Class W205 (2014–2021): ACC and Active Brake Assist
• E-Class W213 (2016–2023): ACC and Active Brake Assist with PRE-SAFE
• GLC X253 (2015–2022): ACC and Active Brake Assist
• GLE W166/W167 (2015–present): ACC and Active Brake Assist
• S-Class W222 (2013–2020): ACC and Active Brake Assist with PRE-SAFE
• CLA C117/C118 (2013–present): ACC option

Fault Codes (Mercedes XENTRY / Star Diagnosis)

• C100000: ACC system fault (radar module not responding)
• C101300: Long-range radar sensor: no signal
• U010087: Lost communication with radar module (CAN bus fault)
• U011687: Lost communication with radar module (Ethernet fault)
• A000153-2222: Radar sensor internal fault

Radar Calibration After Connector Repair

After any radar harness repair, a radar sensor calibration is required using Mercedes XENTRY or Star Diagnosis:

• Park on a flat, level surface with at least 10m clear space in front
• Use a Mercedes-approved radar calibration target (corner reflector)
• Run the “Long-Range Radar – Basic Setting” procedure in XENTRY
• Verify correct tyre pressures and vehicle at kerb weight before calibration

Frequently Asked Questions

Q: My Mercedes ACC stopped working after a front bumper repair — is this the connector?
A: Yes. Front bumper repairs frequently disturb the radar connector. Inspect the connector and re-seat it before replacing the radar module (€800–€2,500).

Q: What is the Automotive Ethernet connection used for in the radar connector?
A: The 100BASE-T1 Automotive Ethernet connection (pins 5–6) carries high-bandwidth radar data from the LRR module to the ADAS domain controller. This data includes detailed target tracking information that cannot be transmitted over CAN bus due to bandwidth limitations.