Does BG 205207 replace OE 21150162D?

Yes. BG 205207 is listed against 21150162D and F315B01635. Confirm the number printed on the removed part and any manufacturer supersession before ordering.

Which vehicles does BG 205207 fit?

Recorded coverage includes Mercedes-Benz. It is supplied as a direct-fit aftermarket def dosing modules. Adaptation, reset or relearn procedures required by the vehicle manufacturer still apply after installation.

Does this fault code always mean the def dosing modules has failed?

No. Exhaust leaks, wiring and connector damage, reductant quality, dosing performance and upstream engine faults can all produce the same codes. Validate those inputs before replacing BG 205207.

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205207

Urea Dosing Module Component Set for Mercedes-Benz Truck (Component Set) – OE 21150162D

Urea Dosing Module Component Set (OE 21150162D) for Mercedes-Benz Truck (Component Set) SCR/AdBlue aftertreatment systems. Cross-referenced with 1 alternate OE number.

BG Part Number: 205207
Category: DEF Dosing Modules
Application: Mercedes-Benz Truck (Component Set)
Vehicle Manufacturer: Mercedes‐Benz

Applications

Truck

OE Cross References

21150162D
F315B01635

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Product Description

This urea dosing module component set is designed as a direct-fit replacement for Mercedes-Benz Truck (Component Set). It meters precise doses of AdBlue / Diesel Exhaust Fluid (DEF) into the exhaust stream as part of the vehicle's Selective Catalytic Reduction (SCR) aftertreatment system, converting NOx emissions into harmless nitrogen and water vapor to help the engine meet its emission standard. Primary OE reference number: 21150162D. It also cross-references to OE/aftermarket numbers including F315B01635. Manufactured by BG Brand (Wenzhou Best Growth IE Co., Ltd.) to OE-equivalent fit, form and function, this part is tested for reliable sealing and dosing accuracy, offering fleets, workshops and parts distributors a quality-assured alternative to OEM pricing for scheduled SCR system maintenance and repair.

Vehicle manufacturer names, logos and OE reference numbers are used for identification and compatibility purposes only. BEST GROWTH products are independent aftermarket products and are not manufactured, sponsored or endorsed by the respective vehicle manufacturers.

BG 205207 (OE 21150162D): function on the vehicle

Urea Dosing Module Component Set for Mercedes-Benz Truck (Component Set) – OE 21150162D is supplied by BEST GROWTH under part number 205207, cross-referenced to OE 21150162D, as a direct-fit aftermarket def dosing modules. In service it meters DEF under pump pressure through a solenoid injector into the hot exhaust pipe, with a cooling circuit or heat shield keeping the injector body below its thermal limit between doses.

BG 205207 is built to the position defined by its OE application in truck service on the platform from Mercedes-Benz. Position, calibration and connector layout are part of the specification, so a part that physically fits is not automatically the correct part.

Seal and gasket condition at the exhaust interface is part of the repair: a leaking joint cools the spray zone and promotes crystallisation.

Fitment for Mercedes-Benz and OE cross reference

BG 205207 replaces 2 OE references: 21150162D and F315B01635. Always confirm the number printed on the removed part, including any supersession issued by the vehicle manufacturer.

Recorded vehicle coverage for 205207 includes Mercedes-Benz, typically on Mercedes-Benz Truck (Component Set). Coverage lists are a starting point for identification, not a substitute for checking the OE number on the vehicle.

Where several OE numbers appear against one BG reference, they are supersessions or regional variants of the same specification. Ordering by 21150162D and quoting the number on your part lets our technical team confirm the variant before despatch.

Symptoms that lead to replacing 21150162D

These complaints bring a vehicle in with the Mercedes-Benz def dosing modules under suspicion. None of them prove BG 205207 has failed on its own, which is why the checks below matter before a replacement is ordered.

coolant or DEF weeping at the module interface
audible ticking absent during a commanded dose
deposits inside the mixer restricting exhaust flow
white urea crystallisation around the dosing point or mixer
low dosing pressure or pressure-build-up fault codes

Checks before fitting BG 205207

Aftertreatment faults are usually system faults. Working through these checks prevents a repeat failure after the new def dosing modules is fitted.

Verify commanded versus actual dosing pressure during an active dose, not at rest.
Run a quantity test and inspect the spray pattern rather than judging the injector by appearance.
Confirm the purge cycle completes at shutdown; skipped purges cause freeze damage.
Review exhaust temperature history — cold-side dosing wets the wall and forms deposits.
Check the cooling circuit or heat shield is intact before fitting a replacement.

Quality, packaging and ordering 205207

BG 205207 is manufactured and tested to aftermarket replacement standards, with electrical, leakage and functional testing carried out before packing. Bulk and retail packaging, private-label cartons and customer-specific labelling are available for distributors and workshop groups.

Send OE 21150162D or the number printed on your part, the engine code and the vehicle identification number with your enquiry, and our technical team will confirm the correct reference, current stock position and lead time before you commit to an order.

Frequently asked questions

Does BG 205207 replace OE 21150162D?: Yes. BG 205207 is listed against 21150162D and F315B01635. Confirm the number printed on the removed part and any manufacturer supersession before ordering.
Which vehicles does BG 205207 fit?: Recorded coverage includes Mercedes-Benz. It is supplied as a direct-fit aftermarket def dosing modules. Adaptation, reset or relearn procedures required by the vehicle manufacturer still apply after installation.
Does this fault code always mean the def dosing modules has failed?: No. Exhaust leaks, wiring and connector damage, reductant quality, dosing performance and upstream engine faults can all produce the same codes. Validate those inputs before replacing BG 205207.