Standard Ignition MAS0238 Mass Air Flow Sensor

Mass Air Flow Sensor for Mercedes-Benz

Standard Ignition MAS0238 is a complete mass air flow sensor assembly built for direct replacement in select Mercedes-Benz applications. It uses a bolt-on mounting style, a single oval female connector, and a 5-blade male terminal layout for a straightforward OE-style connection.

Compatible with 2002 Mercedes-Benz C230 and 2003-2004 Mercedes-Benz SLK230, this Standard Ignition MAS0238 mass air flow sensor is designed for drivers replacing a failed airflow meter on these specific vehicles.

Key Features

• Complete assembly with housing included
• Bolt-on attachment method with 2 bolt holes
• Oval 1-connector design with female connector gender
• 5-terminal blade interface for the vehicle harness
• Plastic housing construction
• Direct-fit replacement for select Mercedes-Benz C230 and SLK230 applications

Detailed Description

The Standard Ignition MAS0238 mass air flow sensor measures incoming air so the engine control system can calculate fuel delivery more accurately. This unit is built as a complete assembly, which helps simplify replacement when the original sensor housing or connector interface is worn, damaged, or contaminated. For fitment-based searches, this part is a direct replacement mass air flow sensor for 2002 Mercedes-Benz C230 and 2003-2004 Mercedes-Benz SLK230 models.

Standard Ignition MAS0238 also cross-references 2-14638 and MA1076 for the same application.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Hard starting related to incorrect air-fuel calculation
• Reduced throttle response from a failing MAF sensor
• Check engine light conditions tied to airflow sensor faults
• Driveability issues from contaminated or damaged sensor components

Installation Notes and Tips

Verify connector shape, terminal count, and bolt pattern before installation. The MAS0238 uses a female oval connector with 5 male blade terminals and a 2-bolt mounting design, so matching the original configuration is important for proper fitment on the Mercedes-Benz C230 and Mercedes-Benz SLK230. Inspect the intake tract for leaks or contamination before installing the new sensor.

Quality Assurance

Standard Ignition supplies emission control sensors for replacement applications, and this MAS0238 unit is built as a complete assembly for direct-fit service on the listed Mercedes-Benz models.