AdBlue Injection Unit
SCR- & AdBlue-System
Function of the AdBlue Injection Unit in the SCR System
The AdBlue injection unit (also known as a dosing module, SCR injector, or urea injection valve) is a key component in the exhaust aftertreatment system of modern diesel vehicles. It injects the AdBlue fluid in a finely atomized form and at precisely timed intervals into the exhaust stream upstream of the SCR catalyst, thereby enabling the effective reduction of nitrogen oxides—regardless of the engine’s speed and load conditions.
Common causes of failure include calcification and crystal formation due to AdBlue drying out, corrosion on the nozzle or valve seat, leaks in the metering module, a malfunctioning heater (important for preventing freezing in cold weather), and deposits caused by low-quality AdBlue. The consequences range from error messages and reduced performance to a driving ban imposed by the engine control unit.
In the at autoteile germany product range, you’ll find the high-quality AdBlue injection unit (at24410, Renault – 20 89 938 39R), which is suitable for various Renault vehicles and ensures precise and consistently reliable dosing.
Product Line: Fuel Unit, Urea Injection
Support
Dosiermodul, Harnstoffeinspritzung
| at Referenz Nummer / Artikelnummer | at24404 |
| OE Referenz Nummern | 4H0131113A |
| Qualität | AM |
| Fahrzeug Verknüpfung | AUDI, VW, PORSCHE: A6 Allroad C7 (4GH, 4GJ), A6 C7 (4G2, 4GC), A6 C7 Avant (4G5, 4GD), A7 Sportback (4GA, 4GF), A8 D4 (4H2, 4H8, 4HC, 4HL), CAYENNE (92A), Q5 (8RB), Q7 (4LB), TOUAREG (7P5, 7P6) |
Dosiermodul, Harnstoffeinspritzung
| at Referenz Nummer / Artikelnummer | at24405 |
| OE Referenz Nummern | 4G0131113 |
| Qualität | AM |
| Fahrzeug Verknüpfung | AUDI: A4 Allroad B8 (8KH), A4 B8 (8K2), A4 B8 Avant (8K5), A5 (8T3), A5 Cabriolet (8F7), A5 Sportback (8TA), A6 Allroad C7 (4GH, 4GJ), A6 C7 (4G2, 4GC), A6 C7 Avant (4G5, 4GD), A7 Sportback (4GA, 4GF), Q5 (8RB) |
Dosiermodul, Harnstoffeinspritzung
| at Referenz Nummer / Artikelnummer | at24406 |
| OE Referenz Nummern | A1644900513, 1644900513 |
| Qualität | AM |
| Fahrzeug Verknüpfung | MERCEDES-BENZ: Sprinter, S212, W212, W221, W164, W251, X204, C218, W166, W463, X164, X166 |
Dosiermodul, Harnstoffeinspritzung
| at Referenz Nummer / Artikelnummer | at24410 |
| OE Referenz Nummern | 208993839R, 93457779, 95520919, 208S4-00Q0A |
| Qualität | AM |
| Fahrzeug Verknüpfung | RENAULT, OPEL, NISSAN: TRAFIC, VIVARO, MASTER, MOVANO, NV400, NV300, MEGANE, TALISMAN, ESPACE, GRAND, Scénic |
Dosiermodul, Harnstoffeinspritzung
Übersicht der Artikel inkl. OE-Vergleichsnummer, Fahrzeug, Fahrzeuganwendung und Qualität.
| Artikel | OE-Vergleichsnummer | Bezeichnung | Zusatzbezeichnung | Fahrzeug | Fahrzeuganwendung | Qualität |
|---|---|---|---|---|---|---|
| at24403 | 18 30 7 807 206 | Dosiermodul, Harnstoffeinspritzung | BMW | 3 (E90), X5 (E70), X6 (E71, E72) | AM | |
| at24404 | 4H0 131 113 A | Dosiermodul, Harnstoffeinspritzung | AUDI, VW, PORSCHE | A6 Allroad C7 (4GH, 4GJ), A6 C7 (4G2, 4GC), A6 C7 Avant (4…) | AM | |
| at24405 | 4G0 131 113 | Dosiermodul, Harnstoffeinspritzung | AUDI | A4 Allroad B8 (8KH), A4 B8 (8K2), A4 B8 Avant (8K5), A5 (8T3…) | AM | |
| at24406 | A164 490 05 13 | Dosiermodul, Harnstoffeinspritzung | MERCEDES-BENZ | Sprinter, S212, W212, W221, W164, W251, X204, C218, W1… | AM | |
| at24407 | A000 490 07 13 | Dosiermodul, Harnstoffeinspritzung | MERCEDES-BENZ | CLS (C218), CLS Shooting Brake (X218), E-CLASS (W212) | AM | |
| at24408 | A000 490 10 13 | Dosiermodul, Harnstoffeinspritzung | MERCEDES-BENZ | Sprinter B906, W447 | AM | |
| at24409 | A000 490 02 00 | Dosiermodul, Harnstoffeinspritzung | MERCEDES-BENZ | Sprinter B907/B910 | AM | |
| at24410 | 20 89 938 39R | Dosiermodul, Harnstoffeinspritzung | RENAULT, OPEL, NISSAN | TRAFIC, VIVARO, MASTER, MOVANO, NV400, NV300, ME… | AM | |
| at24411 | LR134710 | Dosiermodul, Harnstoffeinspritzung | LAND ROVER | DISCOVERY V (L462), RANGE ROVER IV (L405), RANGE R… | AM | |
| at24412 | 29630-4A800 | Dosiermodul, Harnstoffeinspritzung | HYUNDAI, KIA | SANTA FE IV (TM, TMA), SORENTO III (UM) / SORENTO/S… | AM | |
| at24413 | 5801471116 | Dosiermodul, Harnstoffeinspritzung | IVECO | Daily VI | AM |
