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Mann-Filter WK 820/1 - Fuel Filter
Product Overview
The Mann-Filter WK 820/1 is an essential component for maintaining the performance and longevity of your Mercedes-Benz vehicle. Designed specifically for models equipped with 3.0L V6 diesel engines, this premium fuel filter ensures that contaminants are kept at bay, allowing your engine to run smoothly and efficiently. A clean fuel filter is vital to prevent fuel starvation, which can lead to engine sputtering, loss of power, and added stress on the fuel pump. Regular replacement every 50,000 miles is recommended to keep your vehicle in top condition. Choose Mann-Filter WK 820/1 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Mann-Filter WK 820/1 is equivalent to or replaces the following part numbers: 646 092 00 01, 646 092 03 01, 646 092 05 01, A 646 092 00 01, A 646 092 03 01, A 646 092 05 01.
Vehicle Compatibility
- Mercedes-Benz R350 3.0 V6 Diesel (2007–2012)
- Mercedes-Benz S350 3.0 V6 Diesel (2011–2012)
- Mercedes-Benz GL350 3.0 V6 Diesel (2010)
- Mercedes-Benz ML350 3.0 V6 Diesel (2010)
- Mercedes-Benz E320 3.0 V6 Diesel (2007–2009)
- Mercedes-Benz ML320 3.0 V6 Diesel (2007–2009)
- Mercedes-Benz R320 3.0 V6 Diesel (2007–2009)
- Mercedes-Benz GL320 3.0 V6 Diesel (2007–2009)
- Mercedes-Benz E320 3.2 L6 Diesel (2005–2006)
This may also fit other applications. Please use the vehicle selector tool to verify fitment.
Why Shop at eEuroparts.com?
- Proven Expertise: Over 25 years of experience with European vehicles means we know your car inside and out.
- Exclusive Kits That Fitâ„¢ - complete repair solutions with no guesswork
- Fitment Confidence: Our accurate cataloging ensures you get the right part the first time.
- Fast, Reliable Shipping: Orders ship quickly from our U.S.-based warehouses.
- Transparent Pricing: Competitive prices with no hidden fees or surprise charges.
- Established Trust: Serving the European auto community since 2000.
Frequently Asked Questions
What does the Mann-Filter WK 820/1 Fuel Filter do?
The fuel filter is crucial for filtering out contaminants from the fuel before it reaches the engine. It ensures that only clean fuel enters the fuel system, which helps maintain engine performance and efficiency.
How do I know if my Fuel Filter needs replacement?
Signs that the fuel filter may need to be replaced include engine sputtering, difficulty starting the vehicle, reduced acceleration, and a decrease in fuel efficiency. If you notice these symptoms, it's advisable to inspect and potentially replace the fuel filter.
Can I install the Mann-Filter WK 820/1 myself?
Yes, you can install the Mann-Filter WK 820/1 yourself, provided you have the necessary tools and follow proper safety procedures. Always consult your vehicle's service manual for specific instructions.
What are the symptoms of a faulty Fuel Filter?
Common symptoms of a faulty fuel filter include engine sputtering, loss of power during acceleration, difficulty starting, and decreased fuel efficiency. If you experience these issues, it is recommended to check the fuel filter for potential replacement.
Why should I choose Mann-Filter for my Fuel Filter needs?
Mann-Filter is known for its high-quality and reliable automotive parts. Order Mann-Filter WK 820/1 today for a factory-correct replacement that restores safety and performance.
Note: All information on this page and in the FAQ is for general reference only. Verify fitment and consult a professional as needed. eEuroparts.com is not responsible for incorrect part selection or installation.
- BrandMann-Filter
- ManufacturerMann-Filter
- MPNWK 820/1
- Part TypeFuel Filter
- Cross Reference NumbersWK8201, F56303, WK 820/1, 646 092 00 01, 6460920001, 646 092 03 01, 6460920301, 5174056AA, 05174056AA, 646 092 05 01, 6460920501
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2007 | Mercedes-Benz | R320 | CDI (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2007 | Mercedes-Benz | E320 | Bluetec (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2007 | Mercedes-Benz | GL320 | CDI (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2007 | Mercedes-Benz | ML320 | CDI (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2010 | Mercedes-Benz | GL350 | Bluetec 4Matic (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2010 | Mercedes-Benz | R350 | Bluetec 4Matic (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2010 | Mercedes-Benz | ML350 | Bluetec 4Matic (3.0 V6 DIESEL) | Aspiration: Turbocharged, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2012 | Mercedes-Benz | R350 | Bluetec 4Matic (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2012 | Mercedes-Benz | S350 | Bluetec 4Matic (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2009 | Mercedes-Benz | ML320 | Bluetec 4Matic (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2009 | Mercedes-Benz | GL320 | Bluetec 4Matic (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2009 | Mercedes-Benz | R320 | Bluetec (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2009 | Mercedes-Benz | E320 | Bluetec (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2006 | Mercedes-Benz | E320 | CDI (3.2 L6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2008 | Mercedes-Benz | GL320 | CDI (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2008 | Mercedes-Benz | ML320 | CDI (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2008 | Mercedes-Benz | R320 | CDI (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2008 | Mercedes-Benz | E320 | Bluetec (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
| 2011 | Mercedes-Benz | R350 | Bluetec 4Matic (3.0 V6 DIESEL) | Aspiration: Turbocharged, Valves: 24, Notes: Fuel filter without water-sensor connection., Notes: Fuel filter without water-sensor connection., Fuel |
Warranty Overview
At eEuroparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.
Standard Warranty – Most Parts
Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.
Protection: Defects in materials or workmanship under normal personal use.
Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.
Exclusions:
Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)
Commercial, fleet, rideshare, off-road, or racing use
Improper installation, misuse, accidents, or modifications
Not Covered: Labor, shipping, towing, or incidental costs.
Bison Performance Warranty – Our House Brand
Coverage: Limited Lifetime Warranty for as long as you own your vehicle.
Applies To: All products sold under the Bison Performance label.
Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.
Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).
What’s Included: Replacement of the defective product (labor and shipping excluded).
Warranty Claim Requirements
To keep claims fast and fair, we require:
Proof of purchase (invoice or order confirmation).
Photos or videos showing the defective part, order number, date, VIN, and odometer reading.
Diagnostic reports or part returns for non-visible issues may be requested.
Claims must be truthful, properly documented, and reflect normal consumer use.
Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.
For full details and exclusions, please see our complete Warranty Terms & Conditions.
This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.
Return Policy Overview
Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
To start a return, contact customer support via Chat or Contact Us.
Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)
Refunds: Issued to your original payment method within 3–5 business days after inspection
Exchanges: Not automatic — please return and reorder
Replacements: May be approved for incorrect or defective items reported within 7 days
Not returnable:
Used or installed parts
Electrical components
Opened filter kits, gaskets, or contaminated items
Final sale or custom orders
Important Notes:
Return shipping is your responsibility unless we made a verified error
Fitment is the customer’s responsibility (we can assist, but do not guarantee)
Country of origin may vary and is not grounds for return
For complete details, please see our full Return Policy.
This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.
Fast, Reliable Shipping — Straight to Your Door
We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.
We use trusted carriers like UPS, FedEx, and USPS.
Tracking info is emailed to you as soon as your order ships.
Delivery estimates at checkout are based on carrier data, but not guaranteed.
Need help with a shipment?
If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.
For complete details, please see our full Shipping Policy.
This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions, risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.











