The A9079059002 Sprinter window switch is a left-side power window switch listed for 2018, 2019, 2020, and 2021 Mercedes-Benz Sprinter applications. A model name and year range are useful starting points, but they are not enough to confirm an electrical switch. Before ordering, match the complete OE/OEM number and compare the button layout, connector, visible terminals, housing, mounting points, trim color, and installation side with the original part.
This guide uses only the verified details shown on the NexuParts A9079059002 power window switch product page. It explains how to make a careful pre-purchase comparison without treating a symptom, model name, or similar-looking switch as proof of compatibility.
What the A9079059002 Sprinter Window Switch Listing Confirms
The product is identified as a power window switch with OE/OEM reference and NexuParts SKU A9079059002. The listing names Mercedes-Benz as the compatible make, Sprinter as the model, 2018–2021 as the year range, and left as the installation position. The package contains one power window switch.
Those details define the advertised application, but the listing also advises buyers to verify the original part number and physical configuration. Production dates, trim levels, market versions, equipment, and connector styles can differ within a vehicle family. Treat every listed detail as part of one complete comparison rather than relying on only one field.
When a Window-Control Concern Needs More Diagnosis
An inoperative window control, intermittent response, broken button, or driver/passenger control concern may lead you to inspect the switch. These symptoms can justify diagnosis, but they do not identify A9079059002 by themselves. A window concern may involve the switch, connector, wiring, power supply, window mechanism, or another part of the control system.
Diagnose the vehicle before choosing a replacement. If the inspection points to the switch, use the OE number and physical details to select the part. This separation between diagnosis and part identification helps prevent a similar symptom from turning into an incorrect order.
A9079059002 Pre-Purchase Comparison Checklist
1. Match the complete OE/OEM number
Look for A9079059002 on the original switch or confirm it through a reliable vehicle-specific OE reference. Compare every character. Do not shorten the number or assume that a close sequence identifies the same part. A different prefix, suffix, or character may indicate another switch configuration.
2. Confirm the left-side position
The verified listing identifies this as a left-side switch. Confirm the position of the switch being replaced and compare the control layout from that position. Do not use a right-side listing or a visually similar passenger switch as a substitute unless an authoritative vehicle-specific reference confirms it.
3. Compare the complete button layout
Review the number of buttons, their shape, their spacing, the visible symbols, and the surrounding bezel. Compare the original switch with every available product image. Two housings may appear similar at a glance while using a different control arrangement.
4. Inspect the connector and visible terminal layout
Compare the connector opening, housing shape, keying, plug orientation, and visible terminal arrangement. The vehicle connector should match naturally. A similar exterior or the same number of buttons cannot compensate for a different connector. Never plan to force or modify an electrical plug to make a mismatch fit.
5. Check the housing and mounting points
Compare the length, width, depth, side profile, mounting tabs, and retention points. Pay attention to how the switch housing meets the surrounding trim. A front face can look correct while the rear body or clips differ enough to prevent proper seating.
6. Review trim color and finish
Use the current product photos to compare the visible finish and trim color with the original. Screen settings and lighting can affect how a color appears, so color should be considered together with the OE number and physical configuration, not used as the sole fitment test.
Why Year, Make, and Model Are Only the First Filter
The listing names the Mercedes-Benz Sprinter and the 2018–2021 year range. That is useful for narrowing a search, but vehicles sharing a model name may still use different switches. Market region, equipment, trim, production date, and electrical configuration can affect the installed part.
For a stronger match, combine all available evidence: vehicle details, original OE number, left-side position, button arrangement, connector design, terminal layout, housing shape, mounting points, and product photos. If one important detail differs, pause the order and resolve the difference first.
Common Ordering Mistakes to Avoid
- Ordering only because the vehicle is a 2018–2021 Sprinter.
- Matching a few digits instead of the complete A9079059002 reference.
- Ignoring the listing's left-side position.
- Comparing only the front buttons and not the rear connector or housing.
- Assuming a similar button count means the electrical configuration is the same.
- Treating an intermittent window symptom as proof that the switch is faulty.
- Installing the part before completing a final side-by-side comparison.
If you are comparing other electrical replacement parts, browse the NexuParts Lighting & Electrical collection. For another OE-specific window-control example, review the 61319132164 BMW power window switch. It is a separate product for a different advertised application, so its OE number, controls, connector, housing, and position must be evaluated independently.
What to Prepare When Requesting Fitment Help
Useful information includes the product link, VIN, original OE/OEM number, vehicle year and model, and clear photos of the original switch. Include front and rear views that show the complete button layout, connector opening, visible terminals, housing, mounting tabs, and surrounding trim.
A broad request such as “Sprinter window switch” leaves too many details unresolved. A photo of the original part number and connector gives the support team concrete comparison points. Send fitment information before ordering or installation if the number is unreadable or any physical detail appears different.
Installation Planning Without Guesswork
Use service information for the specific vehicle to confirm access, electrical precautions, removal, inspection, and replacement requirements. The product listing does not establish a universal installation process. Electrical and interior-trim work should be handled carefully, and professional installation is recommended when appropriate.
Keep the original switch available until the replacement has passed a complete side-by-side check. Because this is an electrical part, avoid installation, modification, or damage before resolving compatibility questions. If the OE number, position, button layout, connector, terminal arrangement, housing, or mounting points do not agree, stop rather than forcing the part.
Frequently Asked Questions
What vehicles are listed for A9079059002?
The verified product data lists Mercedes-Benz Sprinter applications for 2018, 2019, 2020, and 2021. The switch position is listed as left. Confirm the OE number and physical configuration for the specific vehicle.
How many switches are included?
The package is listed as one power window switch.
Does a window that works intermittently prove this switch is needed?
No. An intermittent or inoperative control is a reason to diagnose the system, not proof of a specific replacement part. Confirm the cause before selecting A9079059002.
What are the most important physical checks?
Compare the button layout, connector shape and keying, visible terminal arrangement, left-side location, trim color, housing dimensions, mounting tabs, and every current product image.
Final Check Before Ordering
Before buying an A9079059002 Sprinter window switch, match the complete OE/OEM reference and confirm the 2018–2021 Mercedes-Benz Sprinter application and left-side position. Then compare the buttons, connector, terminals, housing, mounting points, finish, and current photos. When all of those details agree, return to the A9079059002 product page for a final review of the supplied switch.
