94 C220 Alternator
 

Is there an easy way to tell if my Benz has the Bosch Alternator or the Valeo Alternator without having to remove the alternator? Also, can I interchange one with the other? I need to replace it, but i want to order the correct one.

1994 C220 W202
165000 mi

Not sure on the 220 but on my wife's C280 you can see the rear cover with the alternator mounted. The rear plastic cover will have the Valeo name on it and I imagine the Bosch would be the same.