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Air and Fuel› Intake Manifolds and Components

Mercedes-Benz

OE Replacement Throttle Body

$1,380.00 $913.39 Save $466.61

SKU: 1131410125

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$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Mercedes-Benz 1131410125 is a throttle body/actuator manufactured by Bosch. It is an electrically controlled unit, often referred to as a drive-by-wire throttle body, that regulates the amount of air entering the intake manifold.

Symptoms of a failed throttle body can include a check engine light, rough running, lack of power, and poor idle quality. Replacing a faulty throttle body can restore your Mercedes-Benz to its original performance. This part is made in Germany and is considered OE quality.
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This component controls the amount of air entering the engine by regulating a throttle plate based on the driver's accelerator pedal input, directly impacting engine power and efficiency by managing the air-fuel mixture. Symptoms of a failing throttle body can include poor acceleration or hesitation, rough idling or stalling, and the illumination of the Check Engine light, often accompanied by diagnostic trouble codes related to airflow or throttle position. This throttle body is manufactured in Germany and is built to meet the high standards of Bosch, a leading global supplier of engine electronics and sensors. Bosch has a long history of innovation in automotive technology, including advancements in fuel injection systems and emissions control. This throttle body is compatible with a wide range of Mercedes-Benz models, including various E55 AMG, CL500, CLK430, CLK55 AMG, E430, ML430, S430, S500, S55 AMG, and G500 variants from the early 2000s. It is crucial to verify fitment with specific vehicle year, engine, and body style details.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandMercedes-Benz
Part Number1131410125
CategoryAir and Fuel

Videos

Mercedes Bosch Throttle Body (W203) Internal Cleaning

Mercedes Bosch Throttle Body (W203) Internal Cleaning

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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