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Home >> Audi >> 2007 >> S4 Quattro, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> Mode 6 >> 4.2L - Generic Scan Tool, Engine Code(S): BHF >> 28 - Ignition/Glow plug System >> Ignition, servicing >> Test Data, Spark Plugs
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Test Data, Spark Plugs

Engine code BHF (4.2L/FSI engine)
Engine Control Module (ECM) System identification Motronic ME 7
Engine idle speed 640 to 720 RPM (not adjustable)
Engine speed (RPM) limitation Starting at approx. 7000 RPM
Ignition sequence 1-5-4-8-6-3-7-2
Ignition timing Not adjustable, regulated by Electronic control module
Ignition system Single coil ignition system with 8 ignition coils (output stages integrated) that are connected directly to spark plugs via the ignition cables.
Spark plugs  
Spark plug gap 1.0 to 1.1 mm (max.)
Tightening torque 30 Nm