I have a 1986 300E w/131k.
For sometime now when I drive at night intermitantly the headlights and dash lights becomes brighter- then back to normal. Also, occaissionally my SRS indicator light would flicker on/off - but very faintly. I was ignoring this minor issue.
Today, however, -in the rain- my wipers stopped working and so did my power windows.
The fuses seem fine, and all other electronics seem OK. Any Ideas?????