Does BG 205144 replace OE 4H0 131 113 A?

Yes. BG 205144 is listed against 4H0 131 113 A and 958 111 413 35. Confirm the number printed on the removed part and any manufacturer supersession before ordering.

Which vehicles does BG 205144 fit?

Recorded coverage includes Vw group, Audi, Volkswagen and Porsche). 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 205144.

205144

Urea (AdBlue) Dosing Module for AUDI A6 / A7 / A8 / Q5 / Q7 TDI quattro PORSCHE Cayenne (92A) VW Touareg 7P5... – OE 4H0 131 113 A

Urea (AdBlue) Dosing Module (OE 4H0 131 113 A) for AUDI A6 / A7 / A8 / Q5 / Q7 TDI quattro PORSCHE Cayenne (92A) VW Touareg 7P5 / 7P6 SCR/AdBlue aftertreatment systems. Cross-referenced with 1 alternate OE number.

BG Part Number: 205144
Category: DEF Dosing Modules
Application: AUDI A6 / A7 / A8 / Q5 / Q7 TDI quattro PORSCHE Cayenne (92A) VW Touareg 7P5 / 7P6
Vehicle Manufacturer: VW GROUP (AUDI / VW / PORSCHE)

Applications

Passenger Car

OE Cross References

4H0 131 113 A
958 111 413 35

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Product Description

This urea (adblue) dosing module is designed as a direct-fit replacement for AUDI A6 / A7 / A8 / Q5 / Q7 TDI quattro PORSCHE Cayenne (92A) VW Touareg 7P5 / 7P6. 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: 4H0 131 113 A. It also cross-references to OE/aftermarket numbers including 958 111 413 35. 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 workshops, parts distributors and vehicle owners 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 205144 (OE 4H0 131 113 A): function on the vehicle

Urea (AdBlue) Dosing Module for AUDI A6 / A7 / A8 / Q5 / Q7 TDI quattro PORSCHE Cayenne (92A) VW Touareg 7P5... – OE 4H0 131 113 A is supplied by BEST GROWTH under part number 205144, cross-referenced to OE 4H0 131 113 A, 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 205144 is built to the position defined by its OE application in passenger car service on platforms from Vw group, Audi, Volkswagen and Porsche). 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 Vw group, Audi and Volkswagen and OE cross reference

BG 205144 replaces 2 OE references: 4H0 131 113 A and 958 111 413 35. Always confirm the number printed on the removed part, including any supersession issued by the vehicle manufacturer.

Recorded vehicle coverage for 205144 includes Vw group, Audi, Volkswagen and Porsche), typically on AUDI A6 / A7 / A8 / Q5 / Q7 TDI quattro PORSCHE Cayenne (92A) VW Touareg 7P5 / 7P6. 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 4H0 131 113 A and quoting the number on your part lets our technical team confirm the variant before despatch.

Symptoms that lead to replacing 4H0 131 113 A

These complaints bring a vehicle in with the Vw group and Audi def dosing modules under suspicion. None of them prove BG 205144 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 205144

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

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.
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.

Quality, packaging and ordering 205144

BG 205144 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 4H0 131 113 A 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 205144 replace OE 4H0 131 113 A?: Yes. BG 205144 is listed against 4H0 131 113 A and 958 111 413 35. Confirm the number printed on the removed part and any manufacturer supersession before ordering.
Which vehicles does BG 205144 fit?: Recorded coverage includes Vw group, Audi, Volkswagen and Porsche). 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 205144.