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 MANUALSAUDI2004A6 QUATTRO SEDAN (4B2) V8-4.2L (AWN)REPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULELOCATIONSCOMPONENT LOCATIONS OVERVIEW
2004 Audi A6 Quattro Sedan (4B2) V8-4.2L (AWN)
Component Locations Overview
2004 Audi A6 Quattro Sedan (4B2) V8-4.2L (AWN)SECTION Component Locations Overview
Overview Of Component Locations
Component Locations Overview:
16 Motronic Engine Control Module (ECM) - J220-
- Component location, See Fig.4
- Checking voltage supply
Fig. 4 Component locations in E-box, plenum chamber
1. Motronic Engine Control Module (ECM) -J220-
2. Secondary Air Injection (AIR) pump relay -J299-
3. Motronic Engine Control Module (ECM) Power Supply Relay -J271-; not installed on all versions
4. Fuse S130 for Secondary Air Injection (AIR) pump
RENDER: 1.0x
NO RELATED
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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.