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U0415 on Mercedes-Benz GLC

Invalid Data Received From Anti-Lock Brake System (ABS) Module

Factory diagnostic protocol and troubleshooting wire for fault code U0415 specifically for the Mercedes-Benz GLC (2020–2026, 2.0L Turbo 4-Cyl with EQ Boost (255HP) / AMG GLC 43 4MATIC).

Verified OEM Telemetry & Field Repair Tree
Mercedes-Benz GLC2020–2026
Mercedes-Benz GLC
SUV2.0L Turbo 4-Cyl with EQ Boost (255HP) / AMG GLC 43 4MATIC
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
GLC SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
High urgency level
Est. Repair Cost
$120 - $450 (DIY: $30 - $150)
Parts & Labor DIY
Check U0415 On Another Mercedes-Benz Model:
Diagnose U0415 on Specific GLC Model Year:

1. Symptoms of U0415 on Mercedes-Benz GLC

When the Engine Control Module (ECM/PCM) on your Mercedes-Benz GLC (2.0L Turbo 4-Cyl with EQ Boost (255HP) / AMG GLC 43 4MATIC) logs fault code U0415, drivers commonly observe:

Traction Control, ABS, and 4WD warning lights on on Mercedes-Benz GLC (2.0L Turbo 4-Cyl with EQ Boost (255HP) / AMG GLC 43 4MATIC)
Cruise control inoperative on Mercedes-Benz GLC (2.0L Turbo 4-Cyl with EQ Boost (255HP) / AMG GLC 43 4MATIC)
Speedometer erratic on Mercedes-Benz GLC (2.0L Turbo 4-Cyl with EQ Boost (255HP) / AMG GLC 43 4MATIC)
Mercedes-Benz GLC OBD-II Port Location
The 16-pin diagnostic connector is located Driver lower kick panel near hood release lever. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Mercedes-Benz GLC

Historical warranty claims and technical repair bulletins for Mercedes-Benz GLC point to the following failure distribution:

55%
Faulty wheel speed sensor reporting invalid speed data to the ABS module (Mercedes-Benz OEM Part)
25%
Corroded ABS module wiring (Mercedes-Benz OEM Part)
12%
Mismatched tire sizes confusing wheel speed calculation (Mercedes-Benz OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Mercedes-Benz GLC.

3. Step-by-Step DIY Repair Guide for Mercedes-Benz GLC

01
Scan ABS Module for Wheel Speed Faults

Check ABS module for wheel speed codes (C0035, C0040, etc.). on the Mercedes-Benz GLC equipped with 2.0L Turbo 4-Cyl with EQ Boost (255HP) / AMG GLC 43 4MATIC.

Required Tool: ABS Scanner
02
Check Tire Sizes and Pressures

Ensure all 4 tires are identical size and correctly inflated. on the Mercedes-Benz GLC equipped with 2.0L Turbo 4-Cyl with EQ Boost (255HP) / AMG GLC 43 4MATIC.

Required Tool: Tire Gauge
03
Repair Root ABS Wheel Speed Sensor

Replace damaged wheel speed sensor and clean tone ring. on the Mercedes-Benz GLC equipped with 2.0L Turbo 4-Cyl with EQ Boost (255HP) / AMG GLC 43 4MATIC.

Required Tool: Socket Set
04
Clear All System Codes

Clear codes across PCM, ABS, and 4WD modules. on the Mercedes-Benz GLC equipped with 2.0L Turbo 4-Cyl with EQ Boost (255HP) / AMG GLC 43 4MATIC.

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Mercedes-Benz GLC (U0415)

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Mercedes-Benz GLC OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Mercedes-Benz GLC.

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Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

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Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

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Other Common Fault Codes on Mercedes-Benz GLC

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Mercedes-Benz GLC:

4. Mercedes-Benz GLC U0415 FAQs

What causes code U0415 to trigger on a Mercedes-Benz GLC?

On the Mercedes-Benz GLC (2.0L Turbo 4-Cyl with EQ Boost (255HP) / AMG GLC 43 4MATIC), U0415 is most frequently caused by Faulty wheel speed sensor reporting invalid speed data to the ABS module or Corroded ABS module wiring.

Where is the OBD-II port located on my Mercedes-Benz GLC?

On the Mercedes-Benz GLC, the 16-pin DLC diagnostic connector is located Driver lower kick panel near hood release lever. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Mercedes-Benz GLC with code U0415?

Caution. Electronic Stability, Traction Control, and 4WD may be disabled. Given that U0415 carries a High severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.