Genuine OEM 16197260216 - Diesel Exhaust Fluid (DEF) Tank

Product Overview

This Genuine OEM 16197260216 Diesel Exhaust Fluid (DEF) Tank is the factory-original component for BMW 328d models equipped with 2.0L diesel engines. The DEF tank stores diesel exhaust fluid, a critical consumable that reduces harmful nitrogen oxides (NOx) in the exhaust stream through the selective catalytic reduction (SCR) system. This tank maintains precise fluid levels and integrates with BMW's onboard diagnostics to alert drivers when refilling is needed. Genuine OEM parts ensure exact fit, proper system function, and full compatibility with your vehicle's emissions control architecture.

This DEF tank is sold individually. Verify fitment using the vehicle selector tool to confirm your specific model year and engine variant.

Symptoms of a Failing DEF Tank

• Warning messages on the instrument cluster indicating DEF level is low or critically empty
• Reduced engine performance or power loss when DEF is depleted
• Visible cracks, leaks, or fluid pooling beneath the vehicle
• Malfunction indicator lamp (check engine light) related to emissions or SCR system faults
• Difficulty starting the engine or limp-mode operation when DEF system is compromised

Cross Reference Numbers

This Genuine OEM 16197260216 is equivalent to or replaces the following part numbers: 16-19-7-260-216, 16197260216.

Vehicle Compatibility

This part fits the popular models below. For Fitment Confidence, please use the vehicle selector tool above to verify exact compatibility for your vehicle.

• BMW 328d 2.0 L4 Diesel (F30): 2014–2018
• BMW 328d xDrive 2.0 L4 Diesel (F30): 2014–2018

This may also fit other applications. Please use the vehicle selector tool to verify fitment.

Often Replaced Together

For a complete emissions system service, many owners replace the following at the same time:

• DEF fluid (diesel exhaust fluid) for immediate system refill
• DEF level sensor or sender unit if diagnostic codes indicate sensor failure
• SCR system gaskets and seals if leaks are present
• Exhaust system components if corrosion or damage is discovered during tank removal

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Frequently Asked Questions

How do I know if my BMW 328d DEF tank needs replacement?

The most common indicators are visible cracks or leaks around the tank, persistent DEF level warnings on the dashboard despite refilling, or SCR system fault codes stored in the engine control module. If DEF is leaking from beneath the vehicle or you notice the smell of diesel exhaust fluid, the tank may be compromised and requires inspection or replacement.

What is DEF and why does my 328d need it?

Diesel Exhaust Fluid (DEF) is an aqueous urea solution required by all diesel vehicles sold in the United States since 2010 to meet EPA emissions standards. When injected into the exhaust stream and heated in the SCR (selective catalytic reduction) catalyst, DEF chemically converts harmful nitrogen oxides (NOx) into harmless nitrogen gas and water vapor. Without adequate DEF, your 328d will enter limp mode and engine performance will be severely restricted.

How often do I need to refill DEF in my BMW 328d?

DEF consumption typically ranges from 2 to 4 percent of diesel fuel consumption, depending on driving conditions and engine load. Most 328d owners refill DEF every 5,000 to 10,000 miles. Your vehicle will alert you well in advance when the tank approaches empty, giving you plenty of time to refill at any fuel station, auto parts retailer, or dealer.

Can I install this DEF tank myself, or do I need a technician?

DEF tank replacement requires access underneath the vehicle, removal of undertrays, and careful disconnection of the fluid level sensor and filler neck. While experienced DIY enthusiasts may tackle this job, professional installation is recommended to ensure proper sealing, correct sensor reconnection, and system diagnostics to clear any fault codes. Consult your service manual for exact procedures and tool requirements.

Is this a Genuine BMW part or an aftermarket alternative?

This is a Genuine OEM part manufactured to BMW factory specifications. Genuine OEM DEF tanks ensure exact fit, proper sensor integration, and full warranty support when installed by an authorized BMW dealer or qualified technician. Using genuine parts protects your vehicle's emissions system integrity and resale value.

What should I do if the DEF tank is leaking?

If you notice DEF leaking from the tank, do not continue driving in normal mode. The vehicle will eventually restrict engine performance to protect the SCR system. Stop driving and have the tank inspected and replaced as soon as possible. Continued operation with a leaking tank risks damage to the SCR catalyst and can result in costly repairs beyond the tank itself.

Order Genuine OEM 16197260216 today to restore your BMW 328d's emissions system to factory specifications. In-stock orders ship same or next business day from our U.S. warehouse, and our fitment team is one call away if you need help confirming the right part for your 328d.

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.