Operation CHARM
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2004
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S4 Cabriolet (8H7) V8-4.2L (BHF)
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Repair and Diagnosis
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Powertrain Management
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Relays and Modules - Powertrain Management
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Relays and Modules - Computers and Control Systems
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Engine Control Module
Engine Control Module
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Locations
Motronic Engine Control Module Overview
Motronic Engine Control Module (ECM) J220
Technical Service Bulletins
