93 E320 (300E 3.2)
1) Voltage regulator fails, allowing 19V to the system
2) OVP blows (but OVP fuse doesn't
)
3) Engine runs ragged, surges rapidly on cold start
4) AC blower stops working,
5) cruise control fails,
6) Nakamichi stereo and amps stop working,
7) battery cooks off,
8) miscellaneous exterior bulbs pop,
9) license plate light wire shorts
10) Bulb warning light comes on
11) Check engine light comes on, but then doesn't re-appear
So far, the parts are a new V reg/brush assembly
, new battery, some bulbs, and an OVP. Oh, almost forgot - a new blower motor regulator at $300+.
The Nak seems to work so far, as does the cruise control. The rest of the AC seems OK, and the new OVP seems to have solved the ragged, surging engine. Don't imagine the Voltage and failed OVP did the rest of the electricals any real good, but time will tell.
So if you are driving along and all of a sudden the radio and cruise control stop working, and the engine seems a tad rough, and an exterior bulb warning light comes on, then you indeed have a problem! (btw, you might make sure the check engine light works - unless it blows from the 19 V when the OVP fails)
We might just put OVP and brush assembly on our 3 year p.m. replace list!