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Home >> Audi >> 2004 >> A8 >> Repair and Diagnosis >> Engine Performance >> Ignition System >> 4.2L - Fuel Injection & Ignition, Engine Code(S): BFM >> 28 Ignition/Glow plug system >> Ignition system, servicing >> Technical data
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Technical data

Engine code letters  BFM 
Ignition timing is determined by the control module.
Ignition timing cannot be adjusted.
 
Ignition system Single-coil system with 8 ignition coils (combined coil and output stage) located above spark plug connectors and installed directly on spark plugs
Spark plugs Part number and manufacturer coding
  Tightening torque 30 Nm
Firing order 1-5-4-8-6-3-7-2