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Had the same in reverse. Bosch factory, Valeo worked fine though.
Remember the old Bosch and Valeo alternators where the brushes were built into the regulator, which cost $15 and came off the back with two screws? Pepperidge Farm remembers.
Bought a used Valeo alternator, and sure enough, the charging problems went away, and it starts charging as soon as I start the car.
Cheapest for me was a new Valeo unit from Rockauto. Cheaper than Turner too.
+1 for Valeo. This job wasn\u2019t fun.
I had Valeo in my other car, very common for Bosche to overcharge.
Alternator stopped charging while driving and it slung grease all over the engine bay and hood.
4 aftermarket alternators in a Volkswagen Vanagon… after the last shit the bed i insisted on a factory one. That solved the charging system issue.
When I finally bought another car and started preparing the Bora for sale, the alternator failed. The only real issue it ever gave me.
Mesmo um Valeo novo está caríssimo, pede mais orçamentos.
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If choosing alternator across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare alternator across these categories:
In March 2026 on PartReview, alternator VALEO were overall better than OEM Volkswagen.
In March 2026 on PartReview, alternator VALEO were overall more popular than OEM Volkswagen.
By vote balance, alternator VALEO surpassed OEM Volkswagen:
By number of reviews, alternator VALEO surpassed OEM Volkswagen:
In March 2026, according to PartReview, alternator VALEO led more car-specific ratings than OEM Volkswagen:
VALEO are chosen by owners of cars such as: Ford Escape, and others.
Alternator OEM Volkswagen have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.
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For example, comparisons of alternator VALEO with: Denso, Bosch, Duralast, OEM Toyota, OEM Honda, AC DELCO, OEM FORD, OEM Audi, OEM Nissan, Motorcraft.
Also available: comparisons of alternator OEM Volkswagen with: Denso, Bosch, Duralast, OEM Toyota, OEM Honda, AC DELCO, OEM FORD, OEM Audi, OEM Nissan, Motorcraft.
You can also see who is better among other alternator manufacturers: Bosch or Denso, Denso or Duralast, OEM Toyota or Denso, Bosch or Duralast, Denso or VALEO.