Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2025Q5 SPORTBACK PRESTIGEREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEMSCOMPONENT LOCATIONS: CONTROL MODULES IN REAR PART OF VEHICLECOMPONENT LOCATIONS: CONTROL MODULES IN REAR PART OF VEHICLEREDUCING AGENT METERING SYSTEM CONTROL MODULE -J880- COMPONENT LOCATION AND CONNECTOR END VIEWPIN ARRANGEMENTS REDUCING AGENT METERING SYSTEM CONTROL MODULE -J880
2025 Audi Q5 Sportback Prestige
Pin Arrangements Reducing Agent Metering System Control Module -J880
2025 Audi Q5 Sportback PrestigeSECTION Pin Arrangements Reducing Agent Metering System Control Module -J880
| -T46a- (A) | Designation | -T46a- (A) | Designation | -T46a- (A) | Designation | ||
|---|---|---|---|---|---|---|---|
| 1 | Terminal 30 | 17 | 33 | Reducing Agent Pump -V437- in Reducing Agent Metering System Delivery Unit -GX19- | |||
| 2 | Heater 2 for reducing-agent tank (heater circuit 3) -Z167- in Reducing Agent Metering System Delivery Unit -GX19- | 18 | 34 | ||||
| 3 | Heater for reducing-agent tank (heater circuit 1) -Z102- in Reducing Agent Metering System Delivery Unit -GX19- | 19 | 35 | Reducing Agent Pump -V437- in Reducing Agent Metering System Delivery Unit -GX19- | |||
| 4 | 20 | 36 | |||||
| 5 | 21 | 37 | Reducing Agent Temperature Sensor -G685- in Reducing Agent Metering System Delivery Unit -GX19- | ||||
| 6 | Reducing Agent Temperature Sensor -G685- in Reducing Agent Metering System Delivery Unit -GX19- | 22 | 38 | Reducing agent quality sensor -G849- in Reducing Agent Metering System Delivery Unit -GX19- | |||
| 7 | Reducing Agent Metering System Pressure Sensor -G686- in Reducing Agent Metering System Delivery Unit -GX19- | 23 | 39 | Reducing Agent Line Heater (Heating Circuit 2) -Z104- | |||
| 8 | Reducing Agent Line Heater (Heating Circuit 2) -Z104- | 24 | 40 | Reducing Agent Metering System Pressure Sensor -G686- in Reducing Agent Metering System Delivery Unit -GX19- | |||
| 9 | Reducing Agent Metering System Pressure Sensor -G686- in Reducing Agent Metering System Delivery Unit -GX19- | 25 | 41 | Reducing Agent Tank Sensor -G684- in Reducing Agent Metering System Delivery Unit -GX19- | |||
| 10 | Reducing agent quality sensor -G849- in Reducing Agent Metering System Delivery Unit -GX19- | 26 | 42 | ||||
| 11 | 27 | 43 | |||||
| 12 | Heater 2 for reducing-agent tank (heater circuit 3) -Z167- in Reducing Agent Metering System Delivery Unit -GX19- | 28 | 44 | Extended System CAN-Bus High | |||
| 13 | Heater for reducing-agent tank (heater circuit 1) -Z102- in Reducing Agent Metering System Delivery Unit -GX19- | 29 | 45 | Extended System CAN-Bus Low | |||
| 14 | Terminal 31 | 30 | Terminal 30 | 46 | Terminal 31 | ||
| 15 | 31 | Reducing Agent Pump -V437- in Reducing Agent Metering System Delivery Unit -GX19- | |||||
| 16 | 32 | Reducing Agent Tank Sensor -G684- in Reducing Agent Metering System Delivery Unit -GX19- |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.