Denso and Bosch have worked well for us on a 1.6.
Reviews of Denso parts For Business
Japan
Go with a quality remanufactured unit like a Denso.
I'm probably gonna go with the reman Denso unit from Rockauto.
I bought one online to pick up at store and when I went to open the box something was scraping internally. No shipping damage or box damage. I bought a Denso for a different car (Toyota's OE) and I've had no issues with it. The only problem is it only carries a 1yr warranty.
Expect to shell out more $ for a Denso though if that's the route you go.
Looks like one of the suppliers is Denso. The safer bet is buying the Denso aftermarket version from Rockauto
Denso, jap quality is more reliable. My oe compressor is Denso on a 2014 328xi.
My Denso coils have been running fine for 3.5 years now. 6732312 (673-2312) was my part number for 2nd gen
I suggest either getting your OEM DENSO alternator rebuilt at a shop (costs like $60?) or picking up a low mileage used DENSO alternator from a junk yard (or eBay). The Amazon new ones are probably junk and can cause trouble down the line.
I tried Denso once and didn't have great luck with them.
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