Replacing engine wiring harness, throttle body, and more on the SL320 (R129)

Last time it was mounts, this time it's sparkplugs and the engine wiring harness

1993 - 1995 Mercedes-Benz from the factory had a harness with biodegradable insulation. Some of them were fixed under warranty (if the original owner still had the car). Some have had the harness replaced. Mine is all original. There are 3 areas/harnesses impacted:
- engine wiring harness
- throttle body
- lower wiring harness (not addressed here)

This video shows the following:
- Valve cover gaskets replaced (seals around spark plugs leaking)
- New spark plugs
- Replaced throttle body with ProgRama rebuilt part
- Replaced engine wiring harness w/ Delphi rebuilt part
- New ignition coils

Did it all work out? Did the car even start after all this? You'll have to watch to find out 🙂

Please note: I'm not a mechanic. Working on cars is a hobby that I do in my free time. Apologies in advance for messing up any terminology, etc.

Time stamps
Day 1 intro (0:00)
Before - engine running (2:08)
Taking off the air intake and spark plug cover (2:27)
Inspect the coils (3:15)
Change of plans; lets do valve cover gasket (6:57)
Taking the valve cover off (8:56)
Inspecting the valve cover (12:37)
Put on the new gaskets (14:08)
Valve cover back on (15:43)
Looking at shop manual for notes (16:47)
Bolting down valve cover (17:18)
Replacing spark plugs (18:07)
Day 2 intro (18:51)
Getting to throttle body (19:07)
Taking out the throttle body (21:21)
New throttle body installed (23:05)
Starting off the engine wiring harness (25:03)
Last part of engine wiring harness (27:45)
Final cleanup (28:59)
Wrenching Pro-tip (29:22)
Starting the ignition coil replacement (29:52)
All coils installed (30:28)
Starting the car;does it work? (30:29)
Outro (32:54)