Car: 300E 1990, mileage unknown - recent purchase

Here's what I know ...

• Car runs fine once started.
• Car requires a jump to get started.
• Changed batteries from one car to the next, and problem seems to stay
• Took car to Auto Parts store, for a load test. When the load was applied, the car stalled.

Does this suggest the Alternator is dead?

Should I just replace the voltage regulator?

Thanks for the help.

I did a search - didn't see a hit.

Thanks.

__________________
Thanks for the help
Bill Fisher

'86 560SL (186K) - Now a 'classic' : Registered as an Historic Vehicle
02 E430 in the stable
'14 LS460 (Lexus)
- - - - -
'95 E420 (198K) found a new home
'99 E320 (80K) (gave it's life for me as we hit a bumper)
'95 E420 (231K) Sold to a happy buyer, new to Mercedes
'90 300E (65K) Sold to an Mercedes Lover
'92 190E (215K) - retired to the salvage yard
'93 500SEL (214K) - Moved to another family, still runs like a young pup