Standard Ignition AS490 Manifold Absolute Pressure Sensor Kit

Mercedes-Benz MAP Sensor Kit AS490

Standard Ignition AS490 is a manifold absolute pressure sensor kit for a wide range of Mercedes-Benz applications. It uses a 3-terminal, plug-in oval connector with a female connector body, male blade terminals, and an included O-ring for a secure seal at the vacuum port.

Key Features

• Manifold Absolute Pressure Sensor Kit for emission control and engine management service
• 3-terminal electrical connection with oval plug-in connector
• Female connector housing with male blade terminals
• Black finish with 1 vacuum port
• O-ring included; hardware, bracket, and wiring harness not included
• Cross-reference part numbers include Bosch 0261230506 and Delphi PS20062

Detailed Description

Standard Ignition AS490 is built for Mercedes-Benz vehicles that rely on accurate manifold pressure input for fuel and air calculations. This MAP sensor kit is listed across many Mercedes-Benz models, including AMG GT, GLE, GLS, S-Class, G-Class, E-Class, C-Class, and Sprinter applications. Common fitment examples include Fits 2021-2025 Mercedes-Benz S500, Fits 2016-2029 Mercedes-Benz G550, and Fits 2017-2019 Mercedes-Benz C300. The part number AS490 is also referenced by Bosch 0261230506 and Delphi PS20062 for the same application.

What It Helps Address

• Faulty manifold pressure signal readings
• Check engine light concerns related to MAP sensor performance
• Rough idle or inconsistent throttle response tied to intake pressure data
• Air-fuel calculation errors in turbocharged or direct-injection engine management systems
• Service replacement for a damaged or leaking sensor seal at the vacuum port

Installation Notes and Tips

Verify connector style, terminal count, and vacuum port layout before installation. The sensor uses a plug-in oval connector and includes an O-ring, but does not include hardware, a mounting bracket, or a wiring harness. On several Mercedes-Benz applications, the MAP sensor is located on the air cleaner housing or intake manifold, so confirm the mounting location on the vehicle before service. Always inspect the connector, seal surface, and vacuum passage for contamination or damage during replacement.

Quality Assurance

Standard Ignition AS490 is cataloged as a direct-fit emission control sensor kit for supported Mercedes-Benz applications and is identified by established cross-reference numbers for parts matching.