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  #1  
Old 2nd February 2010, 11:28 AM
Fraz
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Default Alternator on 97 4.2 quattro

Hi battery went flat on car so replaced with a new battery - car started first time. Left overnight and it was flat as a pancake in the morning.

Jump started the car and drove 5 miles to local garage. Garage has diagnosed as alternator - the 120 alternator which was on the car. I assumed that as the car is the 4.2 model the alternator would be the larger 150? anyone know for certain?

Also if the alternator is knackered - is it right that I could jump start and run the car without it cutting out on way to garage? i assumed it would have cut out if the alternator was shot?

any advice greatly appreciated. Regards Fraz
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Old 3rd February 2010, 10:58 AM
entwisi
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depends on how much charge is in teh battery, when my alternator went whislt setting off from work I managed 35 miles before it went critical on me and started shutting everything down. luckily for me I was 1/2 mile from motorway services so managed to limp into them and off teh side of teh M way.


I used www.westlancsautoelectrics.co.uk for a replacement. Be carful though as the standard reference gide listed an incorrect model for mine 97 4.2 QS and they actually ended up completely rebuilding my old one in 3 hours whilst I went shopping in preston centre.

They were a good price as well, I'd highly recommend them.
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Old 3rd February 2010, 01:35 PM
Fraz
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ok thanks for the pointers - just out of interest what 'power' was your alternator? my mechanic has checked with audi who are saying it's the 120 i need - and it's cheap as chips from GSF £80! So i'm just hoping it's the right one now!!
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Old 3rd February 2010, 08:37 PM
entwisi
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150 IIRC

was a big heavy sod I'll tell you that!
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