Urea (AdBlue) Dosing Module for Mercedes-Benz Truck Actros / Arocs – OE 472 070 05 55

BG 205083 (OE 472 070 05 55): function on the vehicle

Urea (AdBlue) Dosing Module for Mercedes-Benz Truck Actros / Arocs – OE 472 070 05 55 is supplied by BEST GROWTH under part number 205083, cross-referenced to OE 472 070 05 55, 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 205083 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 205083 replaces 1 OE reference: 472 070 05 55. Always confirm the number printed on the removed part, including any supersession issued by the vehicle manufacturer.

Recorded vehicle coverage for 205083 includes Mercedes-Benz, typically on Mercedes-Benz Truck Actros / Arocs. Coverage lists are a starting point for identification, not a substitute for checking the OE number on the vehicle.

Quote the number printed on your part with the engine code when you enquire; a single-reference part is the most common source of ordering errors when a platform received a mid-life update.

Symptoms that lead to replacing 472 070 05 55

These complaints bring a vehicle in with the Mercedes-Benz def dosing modules under suspicion. None of them prove BG 205083 has failed on its own, which is why the checks below matter before a replacement is ordered.

• low dosing pressure or pressure-build-up fault codes
• SCR low-conversion codes with confirmed in-spec DEF
• coolant or DEF weeping at the module interface
• audible ticking absent during a commanded dose
• deposits inside the mixer restricting exhaust flow

Checks before fitting BG 205083

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

• 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.
• Clean or replace the mixer if crystallisation is already established, or the new module will block too.
• Verify commanded versus actual dosing pressure during an active dose, not at rest.

Quality, packaging and ordering 205083

BG 205083 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 472 070 05 55 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 205083 replace OE 472 070 05 55?

Yes. BG 205083 is listed against 472 070 05 55. Confirm the number printed on the removed part and any manufacturer supersession before ordering.

Which vehicles does BG 205083 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 205083.