1991 300e 3.0 almost stalling

[lebstyle]

i got a 1991 300e with the 3.0 engine. engine was running fine on my 2 hour highway drive during the day. but on my way back at night, somethng wierd started hapenning 100km into my trip back.

first i noticed the abs light came on, then right after it the srs light came on, then the lights started getting dimmer, the cruise stopped working, so did the radio and blower motor. then the engine started cutting off, and all the needles in the dash went up and down, then just about when you think its gonna turn off, it kicks back in to normal, and drives fine. then for the next 80km, it hapennd about 5 more times, same scenario.

i stopped the car at a stop station, but when i pulled in it was running normal, so i turned it off and back on, thinking it was the alternator, but it doesnt seem like it.

has this problem occured with anyone?

any help would be appreciated.
thanks