Date: Sun, 04 Apr 2004 19:50:58 +0100
From: Grunff <>
Subject: Re: engine speed vs electrical output (c900)

John B wrote: > Recently I noticed an electrical phenomenon in my c900: a correlation between > engine speed and electrical output. For example, the headlights dimming when > the AC is switched on. Also, the cabin heating/cooling fan running more slowly > when the engine is at idle, and speeding up when engine is revved. The car > always starts with no problem, and the battery reads slightly over 12v at rest. > Could this indicate an impending alternator problem, or is it pretty much > normal? The voltage will vary between ~11V and ~14.5V depending on the load. Perfectly normal. -- Grunff

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