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Servicing Motronic injection system
Technical data
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Engine code letters
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AGB (2.7 ltr. V6/5V / 195 kW biturbo engine / without secondary air inlet / satisfies emission standard Euro II-D3)
AZB (2.7 ltr. V6/5V / 195 kW biturbo engine / without secondary air inlet / satisfies emission standard Euro III) 2)
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Idling speed
Not adjustable - controlled by the idling speed stabilisation
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750...850 rpm
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Engine speed limitation
by deactivation of injectors
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approx. 6800 rpm
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Fuel pressure at idling speed
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Vacuum hose connected
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approx. 3.5 bar
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Vacuum hose disconnected
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approx. 4 bar
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Holding pressure after 10 minutes
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at least 2.5 bar
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Injectors
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Spray pattern
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Same for all injectors
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Injection quantity (30s)
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135...165 ml
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Resistance (room temperature) 1)
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13.5...15.5 ω
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1) When the engine is at operating temperature the resistance of the injectors is increased by approx. 4...6 ω.
2) The "AZB" engine satisfies the EU III emission standard without secondary air inlet.
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