LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> BMW >> 2004 >> M3 2D Convertible, S6 >> Repair and Diagnosis >> Engine Performance >> System >> Diagnostic Trouble Codes With Test Charts >> Test Group Identification >> Fuel System Monitoring >> General Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuel System Monitoring: General Description

The fuel system monitoring looks for permanent deviations of A/F controller (lean and rich) from the mean position.