Jamest535 Posted January 24, 2007 Share Posted January 24, 2007 got myself a DC clamp meter to check current etc. When engine is running got a current of 10 amps give or take. Does that sounds right or is the ALTERNATOR knackard?? Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted January 24, 2007 Share Posted January 24, 2007 Depends which direction the current is going and where you're measuring it I dunno how much electrickery there is in a 300TDi but 10A into the vehicle's electrics whilst running doesn't sound too bad. If you have more than an amp or so from the battery with the vehicle off then you have a problem. Quote Link to comment Share on other sites More sharing options...
BogMonster Posted January 24, 2007 Share Posted January 24, 2007 What Mr Freezer said ^^ Voltage is a more useful measure of whether the alternator is doing the job, should be over 14V wth the engine running. Quote Link to comment Share on other sites More sharing options...
Talyllynman Posted January 26, 2007 Share Posted January 26, 2007 What Mr Freezer said ^^Voltage is a more useful measure of whether the alternator is doing the job, should be over 14V wth the engine running. Voltmeter is far more useful than ammeter. Run engine, and check battery voltage is over 14V. Then with engine doing 2000rpm or more, switch on headlamps, HRW etc and check it is still 14V or more. If it is, then alternator is fine. Ian Quote Link to comment Share on other sites More sharing options...
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