Hengst E1709L Engine Air Filter

Engine Air Filter for Audi Applications

The Hengst HEZ Engine Air Filter, part number E1709L, is built for Audi air intake service where clean airflow and proper filtration are required. It is listed for a range of Audi A6 allroad, A6 Quattro, A7 Sportback, S6, and S7 Sportback applications.

Use this filter when replacing the engine air filter on compatible Audi models that call for the HEZ Engine Air Filter line. The fitment data includes 2019-2025 applications, with OE reference notes shown for specific model years.

Key Features

• Engine air filter for air and fuel delivery service
• HEZ Engine Air Filter product line from Hengst
• Fitment listed for multiple Audi A6, A7, S6, and S7 applications
• OE reference notes included for select model years
• Part number E1709L for identification and ordering

Detailed Description

Hengst E1709L is an engine air filter designed for Audi models that use the HEZ filter specification. The fitment data covers Audi A6 allroad, A6 Quattro, A7 Sportback, S6, and S7 Sportback applications across 2019-2025 model years, with some rows tied to OE number 4K0 133 844 D and date-specific notes. If you are servicing an Audi A6 Quattro, Audi A7 Sportback, or related model, verify the OE reference and production date shown in the fitment table before ordering.

What It Helps Address

• Restricted airflow caused by a loaded engine air filter
• Routine filter replacement for scheduled maintenance
• Incorrect part selection when OE reference numbers are required
• Fitment matching for Audi models with date-specific application notes

Installation Notes and Tips

Confirm the vehicle year, model, and OE reference note in the fitment table before installation. For 2020 and 2022 applications, review the date restrictions shown in the notes field, and for 2021-2022 applications, confirm OE No. 4K0 133 844 D where listed. Part number E1709L should be matched to the vehicle’s air filter specification before service begins.

Quality Assurance

Hengst is a recognized filtration brand, and the HEZ Engine Air Filter line is cataloged with application-specific fitment details to support accurate replacement selection. Part number E1709L is listed with OE reference information for select Audi applications.