W126 Mercedes Repairs - Cruise Control, High Beams, and Wiper Blades

Some catch-up repairs on my 91 350SDL Mercedes. Diagnosing and fixing the non working cruise control, fixing the malfunctioning multifunction switch, and demoing factory wiper blades (which are the only ones that work properly on the W126). Plus a discussion of LED brake light bulbs and why you can't use them on a W126. 0:00 Discussing cruise control and brake lamp bulbs. 5:05 Testing the cruise control actuator clutch 5:36 Operating the cruise control actuator manually 6:05 Combination switch dimming theory of operation 8:55 Re-attaching rivets 9:44 W126 Steering column reassembly, horn contacts 11:40 Cleaning steering wheel slip rings 12:09 Testing repaired combination switch 14:21 Testing the cruise control stalk / power supply 16:43 Confirmation of cruise switch fault 18:26 USA market Passive Restraint / Knee Bolsters 20:20 View inside the W126 dash 21:31 Dash is all back together 22:08 Testing cruise control 22:50 W126 wiper blades - Factory is best