Mercedes Sprinter Intake Throttle Body – OEM Bosch | OM642 3.0L V6 | #6420900270 (2010–2022)

DESCRIPTION:

A failing throttle body on the OM642 Sprinter is one of those faults that shows up in multiple ways — rough idle, hesitation on acceleration, reduced power, or a check engine light with airflow-related codes. The electronic throttle body controls precisely how much air enters the engine in response to driver input and ECU commands. When the actuator wears or the throttle plate sticks from carbon buildup, engine performance deteriorates fast. This OEM Bosch replacement with integrated electronic actuator restores precise airflow control and clean throttle response.

What This Part Does

The intake throttle body mounts directly to the intake manifold and regulates airflow into the engine. On the OM642 diesel, it works in conjunction with the ECU to manage air delivery for optimal combustion efficiency across all operating conditions — idle, cruise, and wide-open throttle. The integrated electronic actuator receives signals from the ECU and positions the throttle plate accordingly. Unlike a cable-operated throttle, there's no manual adjustment — it's all fly-by-wire, which means a failing unit requires full replacement rather than cleaning alone.

Common Symptoms of a Failing Throttle Body

• Rough or unstable idle
• Hesitation or stumbling on acceleration
• Reduced engine power or limp mode
• Check engine light with airflow or throttle position codes
• Unresponsive or jerky throttle feel

When to Replace It

Replace when you observe the symptoms above or after diagnostic codes confirm throttle body or actuator failure. Cleaning can address carbon buildup in some cases, but a unit with a failed actuator or worn throttle plate requires full replacement.

Note: This part supersedes the earlier part number 642-090-00-70. Always verify your VIN before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2010–2022 Mercedes-Benz Sprinter 2500 – 3.0L V6 Diesel (OM642)
• 2010–2022 Mercedes-Benz Sprinter 3500 – 3.0L V6 Diesel (OM642)
• 2018–2022 Mercedes-Benz Sprinter 3500XD – 3.0L V6 Diesel (OM642)

Part Numbers

• Mercedes OEM: 6420900270 / A6420900270 / 642-090-02-70
• Bosch OEM
• Supersedes: 6420900070 / 642-090-00-70