Yesterday I replaced my 90A B brand alternator (thank you, previous 8 owners) with a Valeo 120 Amp unit. So far seems to be working fine with 14.15V to the battery at idle and with minimal or max power draw.
Reviews of VALEO alternator
123 votes
Id go with whatever fcpeuro recommends. Aka valeo, bosch (which are both oems)
I just did a standard exchange on mine (Valeo 120A), paid 300€ deposit included, so it's definitely a good deal.
I bought a new Valeo alt cheap because this part was broke. After days os scouring the internet I found two sources, but the would NOT retail the part. They only supply rebuilders in bulk.
Only the NEW valeo or original BMW alternators last in these cars.
Both Valeo and Bosch are good brands. I’ve never owned a Mercedes, but both Valeo/Bosch are installed in various BMWs from the factory.
Alternator is my wild guess: Valeo alternators have long sucked, kinda like their starter motors.
I had to buy a replacement remanufactured alternator (Valeo 120A one) and it was a straight replacement that solved the problem.
The indy shop I used diagnosed it as a bad alternator; I am so lucky ( s a r c a s m ) to have the Valeo (mega $$$$$) unit, they swapped it out a week later.
The alternator was replaced, car died again two weeks later. The Valeo OEM was deemed defective. Back in the shop for a warranty change, still getting voltage fluctuations.
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