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Bosch 0444021013 - Diesel Exhaust Fluid (DEF) Module
MPN: 0444021013
The Bosch 0444021013 Diesel Exhaust Fluid Module is essential for reducing harmful emissions in BMW vehicles. Designed for easy installation and reliable performance.
Vehicle Specific
Check if this part fits your vehicle.
Product Overview
The Bosch Diesel Exhaust Fluid (DEF) Module part number 0444021013 is engineered to meet the highest standards of quality and reliability. This premium-grade replacement part is specifically designed for various BMW models, ensuring optimal performance and compliance with the latest emissions regulations. The DEF module reduces harmful emissions while enhancing the overall efficiency of your vehicle's engine. Choose Bosch 0444021013 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Bosch 0444021013 is equivalent to or replaces the following part numbers: 0444021013, 23426797807.
Vehicle Compatibility
- BMW X5 xDrive35d 3.0 L6 (2010–2013)
- BMW 335d Base 3.0 L6 (2010–2011)
This may also fits 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 Bosch 0444021013 DEF Module do?
The Bosch Diesel Exhaust Fluid Injector is essential for the proper functioning of your vehicle's emission control system. It injects diesel exhaust fluid into the exhaust stream, which helps reduce harmful nitrogen oxide (NOx) emissions, ensuring compliance with environmental regulations and improving overall engine performance.
How do I know if my DEF Module needs replacement?
Key symptoms indicating that the DEF injector may need replacement include poor engine performance, increased emissions, warning lights on the dashboard related to the emission system, and a noticeable decrease in fuel efficiency.
Can I install the Bosch 0444021013 myself?
Yes, many enthusiasts can install the Bosch 0444021013 DEF Module themselves. However, it is important to follow safety precautions and refer to the vehicle's service manual for proper installation procedures.
What are the symptoms of a faulty DEF Module?
Common symptoms of a failing DEF injector include poor acceleration, decreased fuel efficiency, and check engine lights related to emissions issues. If you see DTCs such as P2030, P205B, and P207F, it may indicate a failing DEF Module.
Why should I choose Bosch for my DEF Module needs?
Bosch is a trusted name in automotive parts, known for its quality and reliability. Order Bosch 0444021013 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.
- BrandBosch
- ManufacturerBosch
- MPN0444021013
- Part TypeDiesel Exhaust Fluid (DEF) Module
- OE Part Numbers18 30 7 807 206, 18307807206
- Cross Reference Numbers0 444 021 013, 0444021013, DFI5, EM1106IJ
- FeaturesColor : Black
Connector Quantity : 2
Electrical Connector Quantity : 2
End 1 Connector Gender : Female
End 1 Terminal Type : Blade
End 2 Connector Gender : Male
End 2 Terminal Type : Blade
Hose End 1 Gender : Female
Hose End 2 Gender : Male
Housing Color : Black
Mounting Hardware Included : No
Product Height : 2.238189 in
Product Length : 4.139764 in
Product Width : 2.238189 in
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2010 | BMW | 335d | Base (3.0 L6 DIESEL) | Notes: Actual OE part |
| 2010 | BMW | X5 | xDrive30i (3.0 L6 GAS) | Notes: Actual OE part |
| 2010 | BMW | X5 | xDrive35d (3.0 L6 DIESEL) | Notes: Actual OE part |
| 2011 | BMW | 335d | Base (3.0 L6 DIESEL) | Notes: Actual OE part |
| 2011 | BMW | X5 | xDrive35d (3.0 L6 DIESEL) | Notes: Actual OE part |
| 2011 | BMW | X5 | xDrive35i (3.0 L6 GAS) | Notes: Actual OE part |
| 2012 | BMW | X5 | xDrive35d (3.0 L6 DIESEL) | Notes: Actual OE part |
| 2012 | BMW | X5 | xDrive35i (3.0 L6 GAS) | Notes: Actual OE part |
| 2013 | BMW | X5 | xDrive35d (3.0 L6 DIESEL) | Notes: Actual OE part |
| 2013 | BMW | X5 | xDrive35i (3.0 L6 GAS) | Notes: Actual OE part |
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.
