Continental 5WK9638Z Mass Air Flow Sensor

Continental MAF Sensor for Mercedes-Benz C230

The Continental 5WK9638Z mass air flow sensor is a genuine OEM-style replacement built to original equipment specifications. It is made for accurate airflow measurement, helping the engine management system maintain proper fuel delivery, fuel economy, and drivability on 2003-2005 Mercedes-Benz C230 models.

With a black plastic housing, 12-volt operation, a 4-terminal male blade connector, and one connector interface, this Continental MAF sensor is built for direct-fit service on the listed application. The 5WK9638Z is a practical choice when replacing a worn or failing Mercedes-Benz C230 mass air flow sensor.

Key Features

• Genuine Continental mass air flow sensor, part number 5WK9638Z
• Fits 2003-2005 Mercedes-Benz C230
• 12-volt electrical specification
• Black plastic housing for OE-style fit and layout
• 4-terminal male blade connection with one connector
• Built to original equipment specifications for fit, form, and function
• Wiring harness not included

Detailed Description

Continental 5WK9638Z is an OEM replacement mass air flow sensor engineered for the Mercedes-Benz C230. The sensor measures incoming air so the engine control system can calculate fuel delivery more precisely, which supports smooth operation, consistent throttle response, and efficient combustion. Continental manufactures these sensors to match original equipment requirements, making this part a direct replacement for the factory unit on 2003, 2004, and 2005 Mercedes-Benz C230 vehicles. This part cross-references Cardone Reman 74-10123 for the same application.

Search terms such as Mercedes-Benz C230 mass air flow sensor replacement, 2003-2005 Mercedes-Benz C230 MAF sensor, and Continental 5WK9638Z OEM air flow sensor all point to this exact application.

Common Issues This Part Can Help Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or poor acceleration from incorrect fuel metering
• Reduced fuel economy related to faulty air measurement
• Check engine light triggered by mass air flow sensor faults
• Hard starting or unstable engine performance

Installation Notes and Tips

Verify connector style, terminal count, and housing shape before installation. Inspect the intake tract, air filter, and electrical connector for contamination or damage before replacing the sensor. Clear diagnostic trouble codes after installation and confirm proper idle and throttle response during a road test. This Continental 5WK9638Z uses a single connector and does not include a wiring harness.

Quality Assurance

Continental supplies OEM components to vehicle manufacturers worldwide, and this sensor is manufactured to original equipment specifications for fit, form, and function. The 5WK9638Z is built as a genuine replacement part for the listed Mercedes-Benz C230 applications.