Subtotal:$0.00
Rein CPF0031 - Fuel Tank Cap
Product Overview
The Rein Fuel Tank Cap, part number CPF0031, is designed for BMW and Mini vehicles, ensuring a perfect fit and exceptional performance. Manufactured to meet OE specifications, this fuel cap provides a reliable seal to prevent fuel leakage and maintain the integrity of your vehicle's fuel system. Crafted from premium-grade materials, it guarantees durability and longevity. Its user-friendly installation and integrated tether make refueling convenient and secure. Choose Rein CPF0031 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Rein CPF0031 is equivalent to or replaces the following part numbers: 16 11 7 222 391, 16117222391.
Vehicle Compatibility
- BMW M8 Competition (2021–2022)
- BMW 840i Gran Coupe (2021)
- BMW M340i xDrive (2021)
- BMW M8 Gran Coupe (2021)
- BMW Z4 sDrive30i (2021)
- BMW X7 M50i (2021)
- BMW X5 M (2021)
- BMW X3 M40i (2021)
- Mini Cooper John Cooper Works (2021)
- BMW X6 M (2021)
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 Rein CPF0031 Fuel Tank Cap do?
The Rein Fuel Tank Cap is designed to securely seal the fuel tank of your vehicle, preventing fuel evaporation and leakage. It plays a crucial role in maintaining fuel system integrity and ensuring proper engine performance.
How do I know if my Fuel Tank Cap needs replacement?
Common signs that your fuel cap may need replacement include fuel smell around the vehicle, engine warning lights related to the fuel system, or visible damage to the cap itself.
Can I install the Rein CPF0031 myself?
Yes, the Rein CPF0031 can be installed by DIY enthusiasts. Ensure that you follow the manufacturer’s instructions for proper installation and check for a secure fit.
What are the symptoms of a faulty Fuel Tank Cap?
Symptoms of a faulty fuel tank cap include fuel smell around the vehicle and the illumination of the check engine light. Common DTCs associated with fuel cap issues include P0456, P0455, and P0420. Consult professional repair documentation or experts to confirm diagnosis and ensure accurate troubleshooting.
Why should I choose Rein for my Fuel Tank Cap needs?
Rein is a trusted brand known for its quality and reliability. Order Rein CPF0031 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.
- BrandRein
- ManufacturerRein
- MPNCPF0031
- Part TypeFuel Tank Cap
- OE Part Numbers16 11 7 222 391, 16117222391
- FeaturesApplication Type : Application Specific
Container Type : BG
Country of Origin : AT
Item Height : 2.5000
Item Length : 3.0000
Item Level GTIN : 843266066805
Item Qty : 1
Item Quantity Size UOM : EA
Item UOM : EA
Item Weight : 0.1400
Item Weight Unit UOM : LB
Item Width : 2.5000
Link to Manufacturer Page : www.reinautomotive.com
Product Desc Extended 240 : Rein OE Quality Fuel Cap
Product Desc Invoice 40 : Rein Fuel Cap
Product Desc Long 80 : Rein OE Quality Fuel Cap
Product Desc Short 20 : Cap-Fuel
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2021 | BMW | X5 | M (4.4 V8 GAS) | |
| 2021 | BMW | X5 | M50i (4.4 V8 GAS) | |
| 2020 | BMW | X5 | sDrive40i (3.0 L6 GAS) | |
| 2020 | BMW | X5 | xDrive40i (3.0 L6 GAS) | |
| 2020 | BMW | X5 | M (4.4 V8 GAS) | |
| 2020 | BMW | X5 | M Competition (4.4 V8 GAS) | |
| 2020 | BMW | X5 | M50i (4.4 V8 GAS) | |
| 2020 | BMW | X5 | xDrive50i (4.4 V8 GAS) | |
| 2020 | BMW | 740i | Base (3.0 L6 GAS) | |
| 2020 | BMW | 740i xDrive | Base (3.0 L6 GAS) | |
| 2020 | BMW | 540i | Base (3.0 L6 GAS) | |
| 2020 | BMW | 540i xDrive | Base (3.0 L6 GAS) | |
| 2019 | BMW | X5 | xDrive40i (3.0 L6 GAS) | |
| 2019 | BMW | X5 | xDrive50i (4.4 V8 GAS) | |
| 2019 | BMW | 740i | Base (3.0 L6 GAS) | |
| 2019 | BMW | 740i xDrive | Base (3.0 L6 GAS) | |
| 2019 | BMW | 540i | Base (3.0 L6 GAS) | |
| 2019 | BMW | 540i xDrive | Base (3.0 L6 GAS) | |
| 2018 | BMW | X5 | sDrive35i (3.0 L6 GAS) | |
| 2018 | BMW | X5 | xDrive35i (3.0 L6 GAS) | |
| 2018 | BMW | X5 | M (4.4 V8 GAS) | |
| 2018 | BMW | X5 | xDrive50i (4.4 V8 GAS) | |
| 2018 | BMW | 740i | Base (3.0 L6 GAS) | |
| 2018 | BMW | 740i xDrive | Base (3.0 L6 GAS) | |
| 2018 | BMW | 540i | Base (3.0 L6 GAS) | |
| 2018 | BMW | 540i xDrive | Base (3.0 L6 GAS) | |
| 2018 | BMW | M3 | Base (3.0 L6 GAS) | |
| 2017 | BMW | X5 | sDrive35i (3.0 L6 GAS) | |
| 2017 | BMW | X5 | xDrive35i (3.0 L6 GAS) | |
| 2017 | BMW | X5 | M (4.4 V8 GAS) | |
| 2017 | BMW | X5 | xDrive50i (4.4 V8 GAS) | |
| 2017 | BMW | 740i | Base (3.0 L6 GAS) | |
| 2017 | BMW | 740i xDrive | Base (3.0 L6 GAS) | |
| 2017 | BMW | 540i | Base (3.0 L6 GAS) | |
| 2017 | BMW | 540i xDrive | Base (3.0 L6 GAS) | |
| 2017 | BMW | M3 | Base (3.0 L6 GAS) | |
| 2016 | BMW | X5 | sDrive35i (3.0 L6 GAS) | |
| 2016 | BMW | X5 | xDrive35i (3.0 L6 GAS) | |
| 2016 | BMW | X5 | M (4.4 V8 GAS) | |
| 2016 | BMW | X5 | xDrive50i (4.4 V8 GAS) | |
| 2016 | BMW | 740i | Base (3.0 L6 GAS) | |
| 2016 | BMW | M3 | Base (3.0 L6 GAS) | |
| 2015 | BMW | X5 | sDrive35i (3.0 L6 GAS) | |
| 2015 | BMW | X5 | xDrive35i (3.0 L6 GAS) | |
| 2015 | BMW | X5 | M (4.4 V8 GAS) | |
| 2015 | BMW | X5 | xDrive50i (4.4 V8 GAS) | |
| 2015 | BMW | 740i | Base (3.0 L6 GAS) | Notes: w/Black Tip |
| 2015 | BMW | M3 | Base (3.0 L6 GAS) | |
| 2014 | BMW | X5 | sDrive35i (3.0 L6 GAS) | |
| 2014 | BMW | X5 | xDrive35i (3.0 L6 GAS) | |
| 2014 | BMW | X5 | xDrive50i (4.4 V8 GAS) | |
| 2014 | BMW | 740i | Base (3.0 L6 GAS) | Notes: w/Black Tip |
| 2013 | BMW | X5 | xDrive35i (3.0 L6 GAS) | |
| 2013 | BMW | X5 | M (4.4 V8 GAS) | |
| 2013 | BMW | X5 | xDrive50i (4.4 V8 GAS) | |
| 2013 | BMW | 740i | Base (3.0 L6 GAS) | Notes: w/Black Tip |
| 2013 | BMW | M3 | Base (4.0 V8 GAS) | |
| 2012 | BMW | X5 | xDrive35i (3.0 L6 GAS) | |
| 2012 | BMW | X5 | M (4.4 V8 GAS) | |
| 2012 | BMW | X5 | xDrive50i (4.4 V8 GAS) | |
| 2012 | BMW | 740i | Base (3.0 L6 GAS) | Notes: w/Black Tip |
| 2012 | BMW | M3 | Base (4.0 V8 GAS) | |
| 2011 | BMW | X5 | xDrive35i (3.0 L6 GAS) | |
| 2011 | BMW | X5 | M (4.4 V8 GAS) | |
| 2011 | BMW | X5 | xDrive50i (4.4 V8 GAS) | |
| 2011 | BMW | 740i | Base (3.0 L6 GAS) | Notes: w/Black Tip |
| 2011 | BMW | M3 | Base (4.0 V8 GAS) | |
| 2010 | BMW | X5 | xDrive30i (3.0 L6 GAS) | |
| 2010 | BMW | X5 | M (4.4 V8 GAS) | |
| 2010 | BMW | X5 | xDrive48i (4.8 V8 GAS) | |
| 2010 | BMW | M3 | Base (4.0 V8 GAS) | |
| 2009 | BMW | X5 | xDrive30i (3.0 L6 GAS) | |
| 2009 | BMW | X5 | xDrive48i (4.8 V8 GAS) | |
| 2009 | BMW | M3 | Base (4.0 V8 GAS) | |
| 2008 | BMW | X5 | 3.0si (3.0 L6 GAS) | |
| 2008 | BMW | X5 | 4.8i (4.8 V8 GAS) | |
| 2008 | BMW | M3 | Base (4.0 V8 GAS) | |
| 2007 | BMW | X5 | 3.0si (3.0 L6 GAS) | |
| 2007 | BMW | X5 | 4.8i (4.8 V8 GAS) | |
| 2005 | BMW | 745Li | Base (4.4 V8 GAS) | |
| 2005 | BMW | 745i | Base (4.4 V8 GAS) | |
| 2005 | BMW | 325i | Base (2.5 L6 GAS) | |
| 2005 | BMW | M3 | Base (3.2 L6 GAS) | |
| 2004 | BMW | 745Li | Base (4.4 V8 GAS) | |
| 2004 | BMW | 745i | Base (4.4 V8 GAS) | |
| 2004 | BMW | 325i | Base (2.5 L6 GAS) | |
| 2004 | BMW | M3 | Base (3.2 L6 GAS) | |
| 2003 | BMW | 745Li | Base (4.4 V8 GAS) | |
| 2003 | BMW | 745i | Base (4.4 V8 GAS) | |
| 2003 | BMW | 540i | Base (4.4 V8 GAS) | |
| 2003 | BMW | 325i | Base (2.5 L6 GAS) | |
| 2002 | BMW | 745Li | Base (4.4 V8 GAS) | |
| 2002 | BMW | 745i | Base (4.4 V8 GAS) | |
| 2002 | BMW | 540i | Base (4.4 V8 GAS) | |
| 2002 | BMW | 325i | Base (2.5 L6 GAS) | |
| 2001 | BMW | 540i | Base (4.4 V8 GAS) | |
| 2001 | BMW | 325i | Base (2.5 L6 GAS) | |
| 2000 | BMW | 540i | Base (4.4 V8 GAS) | Notes: From 7/99 |
| 1999 | BMW | 540i | Base (4.4 V8 GAS) | |
| 2006 | BMW | 325i | Base (3.0 L6 GAS) |
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.










