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5 Series Beamer

Diary of a Second Hand 15 year old Beamer (Maintenance - Battery Drain included...,
BMW E39 520i year 2000 Engine 1995cc)
M Series.

 

Contents Page

18

17

Checking Alternator

fig. Source - A typical upgrade for the e39 would be to go from a 90 Amp to a 120 Amp Alternator.
An alternator will only draw what it needs to power components

fig. Source - A typical e39 Alternator with airtube for cooling. This attaches onto existing cowling/plastic trim under the bonnet/hood

fig. Source - Standard  90 Amp for e39 5 Series

fig. Source - Alternator Electric Connections

fig. Source - Alternator Air-Intake Connection

What Needs To Be Checked: See Page 18a

Workshop/Diary- Alternator

Air intake

Positive Supply
Make sure the ring spade is correctly, attached as it can cause problems with battery charging if not seated right.

18a

Note: This example only has two pins for vehicles without AC

Workshop