Alternator. And unlike prior generations of Bosch alternators you can't replace just the regulator, which is usually what fails. Gotta buy the whole piece.
Cons: can't replace regulator
Reviews of Bosch alternator
PR Score
?
Shows the percentage of positive votes. Learn more about the score in the help
648 votes
Average rating
?
The average rating is calculated based only on review ratings, excluding votes
Description
Share on social networks:
I bought a Bosch rebuilt alternator from ECStuning and installed it last night. The light however has stayed on.
Cons: light stayed on
Vehicle:
BMW
My Lucas 18ACR (43 Amp) died shortly after I installed a big electric fan (I moved to Texas and felt it was a good idea), so decided to go with a higher output Bosch. I got tired of searching the parts shops (Advance Auto etc.) for a reconditioned Bosch that might or might not fit... In the end, I took my Lucas to an alternator shop and asked for a Bosch that would fit without modifications.
Pros: fit without modifications
Cons: searching parts shops
Part number: 18ACR
I wasn't crazy with the AC Delco (GM) alternator conversion when I used it on my MGB engine. The Bosch ones seemed to be a little better designed and easier to convert, plus they looked simmilar to the Lucas ones.
Pros: better designed, easier convert
Cons: wasn't crazy with AC Delco
Vehicle:
MG MGB
New Bosch installed Thanks for your help. It was in fact the alternator. Had a NEW Bosch installed by M&M Auto/Cycle in Jersey . Mikes the man when it comes to TDI service.
Pros: Alternator fixed the issue
Vehicle:
Volkswagen Jetta
Order a 6 groove 120A alt though. It's an easy no brainer update. The car benefits under heavy loads and startup. Rainy days when the lights, wipers, a/c, heater, seat warmers, etc are all running will be worry free and your battery will charge back up with less drive time.
Pros: easy update, worry free
Vehicle:
Volkswagen Corrado
Voltage regulator is built into the alternator. If you're seeing 14.5 V with the engine running it's as good as it is going to get.
Pros: 14.5V engine running
Vehicle:
Volkswagen Corrado
ran this one a bit in my 88 16v scirocco. works fine. a bit biger than the sotch as far as size.
Pros: works fine
Cons: a bit bigger
Vehicle:
Volkswagen Scirocco
Bosch rebuilt alternators are like $175 online. Lots of people experienced low quality rebuilts. Have people had good luck with Bosch rebuilts?
Cons: low quality rebuilts
Vehicle:
Volkswagen Golf
A few hard lessons I learned: Have a voltmeter and ensure your battery is good, a bad battery will kill a good alternator (12.6V min on non running car) Find a reputable guy that rebuilds starters and alternators and try to get your alt rebuilt or find a new Bosch.
Pros: rebuild or new Bosch
Cons: bad battery kills alternator
Write your review about alternator Bosch
Help others - share your experience with this part.
Comparisons alternator Bosch
Other alternator
Popular spare parts Bosch
Voted AGAINST engine oil RAVENOL on the rating page
The brake pads OEM Alfa Romeo got the first review!
The brake caliper OEM BMW got the first review!
The brake pads OEM Infiniti got the first review!
For wiper blades PIAA already 100 reviews.
For battery Energizer already 25 reviews.
In the rating best water pump already 12 brands participate!
In the rating best timing belt already 13 brands participate!
In the rating best head gasket already 3 brands participate!
In the auto rating oil filter for Volkswagen Passat already 5 brands participate!
In the auto rating brake pads for Mazda 5 already 10 brands participate!
In the auto rating tires for Subaru Outback already 50 brands participate!
For cabin filter Fram already 25 reviews.
Voted AGAINST engine oil RED LINE on the rating page
Voted AGAINST engine oil PENNZOIL on the rating page