123sender 123 fuel sender Repair Fuel gauge not working, and you've figured out it's the sender? Here's how to repair it. 126connectors Neat little things Why electrical circuits on a 126 last longer and work better than the equivalent circuit in, say a 108. The connectors are considerably improved. 300tachamp Fixing W126 300SD tach amps There is a quick fix for a broken tach. "Fix might be the wrong word here, it only fixes it for a while. But, I coaxed 5 more years out a nearly dead one doing this. When it needed fixing more and more I gave up, but the bullet and got a new tach amp. It's been flawless since then of course. amast Replacing the antenna mast Another quick and easy operation. battery What's the best kind of battery to get? Batteries Drain Dead Deepfaq Boostpack Cables 12v Heavily biased opinion. cruise control Camp Ctrouble Upgrade 107 can use a W123 Cruise amp diag Diagnostic connector Analyze and Troubleshoot "Check Engine" MIL and Electronic Control Units (ECU)

fuses 108fuses 126fuse15 In the immortal words of Dr. Marshall Booth: "ALWAYS check the fuses". Read how to in this somewhat ironic article. groundtip Troubleshooting? Doing a bit of electrical troubleshooting? Here's a handy tip. lamps 126domelight regulator Reg-repair Upgrade Regulator upgrade Volts aint what they used to be. Modern batteries require a greater voltage than older cars put out. Here's an upgrade strategy. sw240D 240D ignition switch wiring. What is the proper way to connect the seven wires to the eight pins on the ignition switch in a '79 240D? The answer is here. troubleshoot The lights go on when I press the horn... Got a weird problem? Here's something that might help. wipers Fixing monowiper assemblies How to repair windshield wiper assemblies