I think my initial inquiry has gotten buried, so I will try again
Can one of our experts provide some clarification please?
In the Tech Manual, there is reference by Peter Lesler that the troubleshooting light (engine bay plug in) was a Bosch part.
On ebay, there are many offerings (at widely diverse pricing) that KACO was the
"official" correct MB part.
If anyone might have a period dealer option booklet or some other source, can it be explained which, if either is was the correct light etc?
JB