Description
Bosch Alternator Voltage Regulator for BMW N45/N46 - 1986AE0083
This Bosch voltage regulator helps maintain stable alternator output and correct charging voltage for your BMW. Common symptoms of a failing regulator include battery warning lights, overcharging/undercharging, dim lights, and poor starting.
OEM / Cross Reference Numbers
- BMW OE: 12 31 7 512 163
- BMW OE: 12 31 7 523 065
- BMW OE: 12 31 7 540 655
- BMW OE: 7 523 065
- BMW OE: 12317540655
Vehicle Compatibility
- BMW 1 Series E81 (2006-2011) 116i N45B16A; 118i/120i N46B20
- BMW 1 Series E87 / E87 LCI (2003-2011) 116i N45B16A; 118i/120i N46B20
- BMW 1 Series E82 / E88 (2006-2013) 118i/120i N46B20
- BMW 3 Series E46 (2000-2006)
- BMW 3 Series E90 / E90 LCI (2004-2011) 320i N46B20
- BMW 3 Series E91 / E91 LCI (2004-2012) 320i N46B20
- BMW 3 Series E92 / E92 LCI (2006-2013) 320i N46B20
- BMW 3 Series E93 / E93 LCI (2006-2013) 320i N46B20
- BMW 5 Series E60 LCI (2006-2009)
- BMW X1 E84 (2009-2015) sDrive18i N46B20
- BMW Z4 E85 (2004-2008) 2.0i N46B20
Nationwide delivery available in South Africa. If you are unsure about fitment, share your VIN or current part number and we will help confirm compatibility.
Important: Product information, kit contents and compatibility are provided as a guide and may contain errors or omissions. Please verify that this part and any included components are correct for your vehicle before installation. For full details see our Website Disclaimer (Errors & Omissions).