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Home >> Mercedes Benz >> 1991 >> 300E Base, 2.6 >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Adjustments >> Idle Speed & Mixture >> Notes

Idle Speed & Mixture: Notes

Idle speed is electronically controlled and no longer adjustable. Mixture (emissions) is electronically controlled and adjustment is possible with Lambda Control Tester (Hermann L115) or 4-Gas Analyzer.