Genuine Specification Front Brake Pad Set – C-Class (W204) & E-Class (W212)

Product Name: Genuine Specification Front Brake Pad Set – C-Class (W204) & E-Class (W212)
Genuine Part Numbers: Multiple variants (see Variant Guide below)
Wear Sensor Part Number: A2115401717
OEM Manufacturers: Mercedes-Benz Genuine / ATE / Brembo / Pagid / TRW / Lucas

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Specification Overview

Genuine specification front brake pad set for the Mercedes-Benz C-Class (W204) and E-Class (W212) model series. These are factory-spec braking components manufactured to OEM specifications by Mercedes-Benz’s original equipment suppliers (ATE / Brembo / Pagid / TRW / Lucas). These brake pads deliver the precise stopping power, pedal feel, and fade resistance that Mercedes-Benz engineers designed into these vehicles.

⚠️ Critical Note: The W204 and W212 platforms share common front brake pad part numbers across many variants. However, multiple part numbers exist depending on the vehicle’s brake system configuration, option codes, and production date. The correct part number is determined by option codes (P31, U29, 494, 950, P96, 66O), not just chassis code. Always verify by VIN before ordering.

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Variant Guide – Choose the Correct Pads

The following OE numbers are commonly used across W204 and W212 front brake systems. The specific part number depends on the brake system supplier (Lucas / TRW / Brembo) and option codes.

Brake System Identification:

⚠️ Important: Fitting the incorrect brake pad variant will result in improper fitment, reduced braking performance, and potential brake failure. Always verify the correct part number by VIN (17-digit chassis number) and option codes before ordering.

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Application & Engine Fitment

C-Class W204 (2007–2014):

E-Class W212 (2009–2016):

Also Fits (Shared Platform):

⚠️ Important: These pads are for front axle only. Rear brake pads have different part numbers (e.g., A0074206720 for W212 rear).

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Brake Pad Wear Sensor – A2115401717

The wear sensor is a critical component that monitors brake pad thickness. When the pads wear to the minimum safe thickness, the sensor completes a circuit that triggers the dashboard brake warning light.

Sensor Specifications:

Sensor Variants (Option Code Dependent):

⚠️ Important: Most W204 and W212 models use two sensors: one on the front-left wheel and one on the rear-right wheel. The sensor is a single-use component and must be replaced with every brake pad change. Attempting to reuse the sensor will result in a permanent dashboard warning light.

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Service Life & Change Intervals (Technical Data)

Standard Recommended Interval:

• 30,000 – 50,000 km (front pads) under normal driving conditions

• Replacement is required when the wear indicator triggers the dashboard warning light

Critical Adjustment for Kampala (Severe Operating Conditions):
The operational climate (ambient temperatures 20°C–40°C), high humidity, stop-and-go urban traffic, and frequent braking classify as “Severe Duty” per MB Work Instructions. Under these conditions, brake pad wear accelerates significantly.

Recommended Replacement Interval under East African operating parameters:

• Maximum: 25,000 – 35,000 km (front pads)

• Heavy urban use (taxis, fleets, daily city driving): 20,000 km recommended

• AMG / high-performance models: 15,000 – 20,000 km due to higher thermal stress

• Replace as a set: Always replace both left and right sides simultaneously

Failure Symptoms – When to Replace:

• Dashboard brake wear warning light illuminated

• Squealing or screeching noise when braking (wear indicator contact)

• Reduced braking performance or increased pedal travel

• Visible pad thickness less than 3mm

• Pulsation or vibration through brake pedal (warped discs – replace discs simultaneously)

⚠️ Important: When replacing brake pads, always inspect the brake discs (rotors). W204 and W212 models use various disc sizes depending on brake system (typically 295mm–344mm). If discs are scored, worn below minimum thickness, or warped, they must be replaced simultaneously. The wear sensor must always be replaced with the pads.

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Packaging & Pricing (Alps Autoz Kampala)

Complete Front Brake Service Kit Recommended:
For a complete front brake service, replace the following simultaneously:

• Front brake pads (per variant – verify by VIN)

• Brake pad wear sensor (A2115401717)

• Brake discs (if worn – per chassis specification)

• Brake fluid (MB 331.0 / DOT 4 PLUS – A0009895605)

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Technical Notes for the Workshop

• Variant Selection: The correct pad set depends on the vehicle’s brake system supplier (Lucas/TRW or Brembo) and option codes (P31, U29, 494, 950, P96, 66O). Always verify by VIN before ordering.

• Installation: The wear sensor clips into the brake pad and connects to the vehicle wiring harness. Ensure the sensor wire is routed correctly to avoid chafing.

• Sensor Type: This is a single-use sensor. The dashboard warning light will remain illuminated if the sensor is reused.

• Bedding-In Procedure: After installation, perform 10–15 moderate stops from 50 km/h to 30 km/h to bed the new pads and discs. Avoid harsh braking for the first 200 km.

• Genuine vs. Aftermarket: Genuine MB brake pads are manufactured to OEM specifications. Equivalent aftermarket brands with cross-reference include:

  • ATE – Original Equipment Supplier

  • Brembo P50087 – OEM supplier

  • Pagid – Original Equipment Supplier

  • Textar – Premium aftermarket

  • Zimmermann 24310.190.1 – Premium aftermarket

• Storage: Store in a dry environment away from direct sunlight. Brake pads have an indefinite shelf life when stored properly.

• Compatibility Note: These pad sets are not interchangeable between standard and AMG Sport brake systems. Always verify by VIN (17-digit chassis number) before ordering.

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Alps Autoz – Kampala