Alternator Bosch or OEM Mazda

Had a noise when idling my 2005 passat 2.0 diesel auto. When I turned the wheel at idle the belt would chirp and jump( at the pwr steering pump). Found out I had a defective Schrage(sp?) pulley/clutch on my Bosch 120 amp alternator.

i had the same exact problem. tested the battery and alternator, both tested good. came across a fanactic VW mechanic. told him my problem, he test drove it for a couple of minutes. then he told me it was my alternator. my alternator is going bad. so i took his advise, bought a new bosch, and now, new more red light. plus the new alternator seemed to give me more power, thats from what i feel. probably just my imagination.

well i need a alternator because my bearing is about to fail and my buddy is selling me a BRAND NEW bosch unit for 50 bucks so why not...

I got a bosch when mine died on me. No complaints :thumbup:

my alternator is of the clutched variety. Its from a 1997 and will not contribute to the crank nose keyway issue. 90A Bosch $35 plus shipping

I had to fit a new alternator since the old one had died on me: I replaced the non-original alternator with a bosch 90A alternator OEM VW/AUDI. It got up to 13.9volts now, the regulator limits it to 14V.

I ran the Toywagen with the waterpump and the crank. PS is only with the crank. I had to use a MK3 v-belt PS pulley for the waterpump as the stock one didn't align for some obscure reason. I have one of those aftermarket Bosch alts, so I had to put 2 washers to space the toyagen even more

Toyota - Denso $213.68 VW - Bosch $166.61 BMW - Bosch $169.00 Lexus - Denso $249.44 Honda - Denso $323.40 Mercedes - Bosch $180.26 Mazda - Denso $234.06 Audi - Bosch $187.10 Land Rover - Bosch $209.82 Porsche - Bosch $169.87

Ok so I exchanged the alternator but just got it on this morning and the alternator i exchanged it with was a bosch which is a direct replacement of the original one i have, i hooked it all back up properly, new charge wire and its running at 11.4 volts now and still drops lol.

I had a Bosch reman that self-machined itself to pieces in less than a year on my street car - the car that rarely saw more than 5K rpms. The Bosch replacement seemed to work OK but I sold the car shortly thereafter.