• Seal

Throttle Housing / Intake Seal Elring - 303.520

157 in stock
$2.33
$2.33 $2.60
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Specifications

OEM Part Number

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MFG Part Number

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Manufacturer

Elring

Quality

OEM

Elring 303.520 throttle housing / intake seal is engineered to seal the joint between the throttle housing and the intake flange, preventing air leaks and preserving proper vacuum for accurate fuel metering and smooth idle. This Dichtung withstands the thermal cycling and pressures typical of modern engines.

It is designed for select Mercedes-Benz applications and is backed by a 24-month / 24,000-mile warranty from Elring. Over time, seals can degrade due to heat and age, potentially causing vacuum leaks and reduced throttle response. Replacing the seal restores proper sealing and helps maintain engine performance and efficiency. The Elring brand provides reliable sealing solutions backed by warranty.


Year Make Model Submodel Notes
2019 Mercedes-Benz A220 Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2020 Mercedes-Benz A220 Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2021 Mercedes-Benz A220 Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2022 Mercedes-Benz A220 Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2020 Mercedes-Benz A35 AMG Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2021 Mercedes-Benz A35 AMG Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2015 Mercedes-Benz C300
2016 Mercedes-Benz C300
2017 Mercedes-Benz C300
2018 Mercedes-Benz C300
2016 Mercedes-Benz C350e
2017 Mercedes-Benz C350e
2018 Mercedes-Benz C350e
2014 Mercedes-Benz CLA250 Housing to Intake, and Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2015 Mercedes-Benz CLA250 Housing to Intake, and Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2016 Mercedes-Benz CLA250 Housing to Intake, and Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2017 Mercedes-Benz CLA250 Housing to Intake, and Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2018 Mercedes-Benz CLA250 Housing to Intake, and Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2019 Mercedes-Benz CLA250 Housing to Intake, and Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2020 Mercedes-Benz CLA250 Housing to Intake, and Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2021 Mercedes-Benz CLA250 Housing to Intake, and Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2022 Mercedes-Benz CLA250 Housing to Intake, and Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2023 Mercedes-Benz CLA250 Housing to Intake, and Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2024 Mercedes-Benz CLA250 Housing to Intake, and Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2025 Mercedes-Benz CLA250 Housing to Intake, and Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2020 Mercedes-Benz CLA35 AMG Not for cars with (Code AA7, or 9U8).; Not for cars with (Code AA7, or 9U8).
2021 Mercedes-Benz CLA35 AMG Not for cars with (Code AA7, or 9U8).; Not for cars with (Code AA7, or 9U8).
2022 Mercedes-Benz CLA35 AMG Not for cars with (Code AA7, or 9U8).; Not for cars with (Code AA7, or 9U8).
2023 Mercedes-Benz CLA35 AMG Not for cars with (Code AA7, or 9U8).; Not for cars with (Code AA7, or 9U8).
2024 Mercedes-Benz CLA35 AMG Not for cars with (Code AA7, or 9U8).; Not for cars with (Code AA7, or 9U8).
2025 Mercedes-Benz CLA35 AMG Not for cars with (Code AA7, or 9U8).; Not for cars with (Code AA7, or 9U8).
2017 Mercedes-Benz E300
2018 Mercedes-Benz E300
2019 Mercedes-Benz E300
2015 Mercedes-Benz GLA250 Housing to Intake, and Housing to Intermediate Flange
2016 Mercedes-Benz GLA250 Housing to Intake, and Housing to Intermediate Flange
2017 Mercedes-Benz GLA250 Housing to Intake, and Housing to Intermediate Flange
2018 Mercedes-Benz GLA250 Housing to Intake, and Housing to Intermediate Flange
2019 Mercedes-Benz GLA250 Housing to Intake, and Housing to Intermediate Flange
2020 Mercedes-Benz GLA250 Housing to Intake, and Housing to Intermediate Flange
2021 Mercedes-Benz GLA35 AMG Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2022 Mercedes-Benz GLA35 AMG Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2023 Mercedes-Benz GLA35 AMG Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2024 Mercedes-Benz GLA35 AMG Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2025 Mercedes-Benz GLA35 AMG Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2020 Mercedes-Benz GLB250 Not for cars with (Code AA7, or 9U8).; Not for cars with (Code AA7, or 9U8).
2021 Mercedes-Benz GLB250 Not for cars with (Code AA7, or 9U8).; Not for cars with (Code AA7, or 9U8).
2022 Mercedes-Benz GLB250 Not for cars with (Code AA7, or 9U8).; Not for cars with (Code AA7, or 9U8).
2023 Mercedes-Benz GLB250 Not for cars with (Code AA7, or 9U8).; Not for cars with (Code AA7, or 9U8).
2024 Mercedes-Benz GLB250 Not for cars with (Code AA7, or 9U8).; Not for cars with (Code AA7, or 9U8).
2025 Mercedes-Benz GLB250 Not for cars with (Code AA7, or 9U8).; Not for cars with (Code AA7, or 9U8).
2021 Mercedes-Benz GLB35 AMG Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2022 Mercedes-Benz GLB35 AMG Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2023 Mercedes-Benz GLB35 AMG Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2024 Mercedes-Benz GLB35 AMG Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2025 Mercedes-Benz GLB35 AMG Housing to Intermediate Flange; Not for cars with (Code AA7, or 9U8).
2016 Mercedes-Benz GLC300
2017 Mercedes-Benz GLC300
2018 Mercedes-Benz GLC300
2019 Mercedes-Benz GLC300
2018 Mercedes-Benz GLC350e
2019 Mercedes-Benz GLC350e
2020 Mercedes-Benz GLC350e
2016 Mercedes-Benz Metris
2017 Mercedes-Benz Metris
2018 Mercedes-Benz Metris
2019 Mercedes-Benz Metris
2020 Mercedes-Benz Metris
2021 Mercedes-Benz Metris
2022 Mercedes-Benz Metris
2023 Mercedes-Benz Metris
2017 Mercedes-Benz SLC300
2018 Mercedes-Benz SLC300
2019 Mercedes-Benz SLC300
2020 Mercedes-Benz SLC300
2016 Mercedes-Benz SLK300
2019 Mercedes-Benz Sprinter 1500
2020 Mercedes-Benz Sprinter 1500
2021 Mercedes-Benz Sprinter 1500
2022 Mercedes-Benz Sprinter 1500
2023 Mercedes-Benz Sprinter 1500
2019 Mercedes-Benz Sprinter 2500
2020 Mercedes-Benz Sprinter 2500
2021 Mercedes-Benz Sprinter 2500
2022 Mercedes-Benz Sprinter 2500

Dimensions

Length:

Height:

Width:

Weight:

California Prop 65 Warning

Prop 65 warrning applies: .

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Throttle Housing / Intake Seal Elring - 303.520

$2.33
Guaranteed Fitment

Get the right part for your exact vehicle the first time. Our fitment data is carefully verified to eliminate guesswork and prevent costly mistakes.

OEM-Quality Performance

Manufactured to meet or exceed factory specifications, ensuring long-lasting reliability, proper performance, and a perfect match to your original components.

Fast, Reliable Shipping

Orders are processed quickly and shipped from one of our nationwide warehouses so you can get your vehicle back on the road without unnecessary delays.

Does it come with a warranty?

Yes, our parts are backed by a 2-year warranty covering defects in materials and workmanship, giving you peace of mind with every purchase.

What if I need to return it?

We’ve got you covered. Enjoy 90-day returns with no restocking fees—just send the part back in its original condition for a hassle-free refund or exchange.

How long will it take to get it?

We ship from multiple East and West Coast warehouses and automatically select the location closest to you for faster delivery. Estimated delivery times are shown at checkout based on your address and selected shipping method.

Does it fit my vehicle?

We continuously review and update our catalog to maintain accurate fitment data. Every product page features a fitment table with vehicle-specific details and notes. If you’re unsure, feel free to contact our customer service team—we’re happy to help confirm compatibility.

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