Alternator Bosch or Denso

I did the alternator recently on my 2013. The price of the part was about the same.

Mechanic put in a different kind, and I spent all last summer with dead batteries. After a lot of troubleshooting, and thinking there was a parasitic draw, we found the alternator was bad. Replaced w/ Denso, and no problems since.

Well I definitely wouldn't have gone aftermarket but I understand you might have been in a pickle

https://www.fcpeuro.com/products/volvo-alternator-bosch-al157x?ads_cmpid=21619732995

As far as why it's not working at all, you need very good clean connections including good ground connections everywhere

I replaced my odysseys alternator with a denso and it's been great i also think denso was the oem part anyway.

Bosch is a OE supplier to BMW - I would choose that over Valeo if it were a choice I needed to make.

I installed a new BOSCH alternator in my MERCEDES-BENZ 190E 2.0 1991, and unlike the old one, this one has a **D+ port, a B+ port 1, and a B+ port 2.**

Car needed an alternator - Golf 1.8 TSI Was told there was nothing available OEM (Bosch) in Canada, and couldn't tell me when one would be available. Was quoted CAD$1800!! + install labor. Found a used OEM one at the scrap yard for CAD$50....

IMHO this is not going to work. The brushes and slide rings lifespans are about the same so IMHO you must replace whole set if you expect this to be a permanent fix. Also, you have to clean the housing from old copper dust and graphite.

I replaced the Alternator on my 2016 Mini Cooper Paceman with a brand new Bosch Alternator. For whatever reason the Alternator is only putting out 11-11.6 volts.

I had a Bosch alternator die in <6 months. Got installed in November 2024 and it died a few weeks ago.