I put a remanned bosch alt in just last weekend. I'm getting 13.8-.9...rarely do I see 14v
I'd start confirming connections, corrosion, etc before replacing anything. But the bosch remanned now is interchangeable with the valeo alt if that's what you have...so now you don't have to worry about what alt you have as much.
I'm so depressed. No one wants to come see me. :(
Mangofy your E46!