A friend had a rebuilt bosch unit that he lent me to try and that too doesn't put out any voltage.
Cons: doesn't put out any voltage
Vehicle:
Volkswagen Jetta
Reviews of Bosch alternator
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The 07K 2.5l came with either a 140A Valeo or 140A Bosch alternator. Be sure you're buying based on alternator brand.
I want to replace the alternator myself, but I can't find where to get OEM parts for a reasonable price. The dealership is charging $340 for the part and the best I can find is this [Bosch alternator](https://www.amazon.com/dp/B001C64QHE/ref=wl_it_dp_o_pC_S_ttl?_encoding=UTF8&colid=TXMF4LHVIWCE&coliid=IN63F3OG0M77W) on Amazon which they state is new, but it seems like all Bosch alternators are remanufactured. Why is it so damn complicated to find high-quality replacement alternators?!
Cons: remanufactured alternators
Vehicle:
Subaru Outback
I recently purchased a 120 amp (refurbished) Bosch alternator at Advance Auto and kept the receipt. My original 90 amp alternator lasted 14 years before it stopped charging battery.
Pros: easy replacement
Cons: stopped charging battery
250,000 KM and still on the original alternator ( 1998 Audi A4 . Bosch 120 Amp Alternator ) . Had to replace a couple of bearings but that's it.
Pros: original alternator, replaced bearings
Vehicle:
Audi A4
Mileage: 250000 km
We've had all sorts of problems with Bosch reman alternators. They worked really well until Volvo put the alternator on the CAN network. The reman ones have a ton of trouble making the right charging voltage.
Pros: worked really well initially
Cons: trouble making charging voltage
Vehicle:
Volvo
If you put a Botch on a Honda, it will last about 3months.
Cons: lasts about 3 months
Vehicle:
Honda
B5/5.5 alternators come from two vendors, Bosch and Valeo. I've heard they're not interchangeable because of different pulleys.
Cons: not interchangeable
Vehicle:
Volkswagen Passat B5
Alternators can be rebuilt. YMMV of course, but I rebuilt the Bosch alternator on my old Mk1 VW Rabbit several times (brush would wear down) with no issues.
Pros: easy to rebuild, no issues
Cons: brush would wear down
Vehicle:
Volkswagen
I replaced it with a Duralast Gold. After replacing the issue still existed so I replaced the alternator with an OEM Bosch remanufactured unit.
Vehicle:
Volkswagen Jetta
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