Alternator OEM Audi or Bosch

PartReview Score

Rank #15 in ranking

2.8

Lights

2.0

Warning light

1.3

No data

PR Score

Ranking

Votes

Reviews

Average rating

Properties

Car

PartReview Score

Rank #2 in ranking

294

133

204

3.7

Lights

4.0

Noise

1.6

Warning light

3.1

Owners' choice:

Reviews

All

OEM Audi

Bosch

Bosch › Alternator

Compy486 24 Jan 2026, 23:17

Warning light:
Lights:

Rating 4.0

I just had to swap my alternator today on my MK7. Mine was Valeo but I could only find a Bosch locally, I decided to give it a shot and it worked just fine. Just a PSA for anyone in the same situation, they are both the same barring a slightly different orientation of the plug on the back.

Pros: worked just fine, compatible

Vehicle: Volkswagen Golf

Bosch › Alternator

iforgotmylogin32 29 Dec 2025, 02:30

Rating 4.0

I am currently leaning towards picking up a new Bosch 120 amp over the BMW.

Vehicle: BMW

OEM Audi › Alternator

RaisingCanes4POTUS 27 Dec 2025, 07:50

Warning light:

Rating 4.0

Exact thing happened to my vehicle earlier this month. Left me stranded. Luckily I was in the last month of warranty and got a shiny new alternator!

Pros: shiny new alternator

Cons: left me stranded

Vehicle: Audi

OEM Audi › Alternator

stryckereddit 27 Dec 2025, 03:30

Warning light:

Rating 4.0

Last year I had a similar experience/warnings with my 2021 RS6. Flat bedded to the dealership and they replaced the alternator under warranty.

Pros: replaced under warranty

Vehicle: Audi RS6

Bosch › Alternator

Eric D 25 Dec 2025, 04:28

Rating 5.0

In place of the Valeo alternator I installed a Bosch VR6 120 amp alternator with a Bosch ABA alternator pulley (its 5 ribs versus 6 ribs of the VR6).

Pros: increased amperage

Bosch › Alternator

Gold-Consequence1750 16 Dec 2025, 19:22

Rating 4.0

I just went over 195,000 miles while I've driven it over 26,000 miles this year with the only failures being the original 15 year old Bosch alternator and the spark plugs needing to be replaced.

Pros: motor itself is reliable

Cons: alternator needed replacement

Vehicle: Volkswagen Jetta

Mileage: 313821 km

Bosch › Alternator

Brent42088 2 Dec 2025, 17:32

Rating 3.0

I've been looking on RockAuto. Will a Bosch remanufactured or AC Delco remanufactured work ok?

Bosch › Alternator

Last_Seesaw5886 9 Nov 2025, 16:09

Noise:

Rating 3.0

I tried a Bosch reman from Rockauto on my Civic. Lasted about two years then the rear bearing starting squeaking.

Pros: lasted about two years

Cons: rear bearing squeaking

Vehicle: Honda Civic

Bosch › Alternator

Former-Primary-3186 21 Dec 2025, 04:49

Warning light:

Rating 1.0

Literally just put a FCP Bosch remanufactured 2 pin alternator in our 530 last week--it doesn't work at all. Communicating with FCP currently to send it back and get a replacement, but I'm not happy about it. I was told that Bosch was the one to go with for best quality, but now I'm skeptical.

Cons: doesn't work at all

Vehicle: BMW

OEM Audi › Alternator

zogoed 20 Dec 2025, 17:18

Warning light:

Rating 1.0

Wouldn\u2019t recommend unless you like spending your time on the side of the road or at the dealer. Mine just went back to my local dealer today for its 4th alternator in 32k total miles, 3rd one in the last 6 months. Literally just got the car back 5 days ago for the same issue.

Pros: Fun to drive

Cons: unreliable, frequent alternator issues

Vehicle: Audi

Mileage: 51500 km

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Show all

Which alternator to choose — OEM Audi or Bosch?

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:

Comparison of alternator OEM Audi and Bosch

PR Score.
Overall ranking.
Vote balance.
Average rating.
Number of reviews.
Feature ratings.
Car owners’ choice.

Which alternator are better — Bosch or OEM Audi?

In March 2026 on PartReview, alternator Bosch were overall better than OEM Audi.

OEM Audi received a PR Score of 50 out of 100, and Bosch scored 72 points.
OEM Audi ranked 15 in the overall ranking, and Bosch ranked 2.
The average rating is higher for Bosch (3.7) than for OEM Audi (2.8).
Alternator Bosch have better feature ratings than OEM Audi:
- Warning light - owners believe, that this property for Bosch is better than OEM Audi.
- Lights - drivers claim, that this property for Bosch is outperforms OEM Audi.
- Noise - reviews suggest, that this property for Bosch is preferred to OEM Audi.

Which alternator are more popular — OEM Audi or Bosch?

In March 2026 on PartReview, alternator Bosch were overall more popular than OEM Audi.

By vote balance, alternator Bosch surpassed OEM Audi:

For OEM Audi, the ratio of positive (42) to negative (42) votes is 0 votes.
For Bosch, the ratio of positive (471) to negative (177) votes is 294 votes.

By number of reviews, alternator Bosch surpassed OEM Audi:

For alternator OEM Audi there are 26 reviews: 10 positive, 6 neutral, 10 negative.
For alternator Bosch there are 204 reviews: 133 positive, 36 neutral, 35 negative.

Which alternator do car owners prefer — OEM Audi or Bosch?

In March 2026, according to PartReview, alternator Bosch led more car-specific ratings than OEM Audi:

Bosch are chosen by owners of cars such as: BMW X5, Ford Focus, Volkswagen Golf, Volkswagen Jetta, Volkswagen Passat, and others.

Alternator OEM Audi have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.

Other comparisons of alternator

If this comparison didn’t fully answer your question, there are many others on PartReview.

For example, comparisons of alternator OEM Audi with: Denso, Duralast, OEM Toyota, VALEO, OEM Honda, OEM Volkswagen, AC DELCO, OEM FORD, OEM Nissan, Motorcraft.

Also available: comparisons of alternator Bosch with: Denso, Duralast, OEM Toyota, VALEO, OEM Honda, OEM Volkswagen, AC DELCO, OEM FORD, 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.