With the cooler days, I'm using the block heater more often due to failed glow plugs.

Decided to look for quick disconnect to make attachment easier plus reduce chance of harm if I drive off with power cable connected.

Found this:

www.voltsafe.com

It's a fairly new product so not much information. I probably won't use it due to the 'smart technology' and app for phone. Would prefer similar product without 'app' function.

Better get the GloPlug(s) changed soon.

You can make your own, using a two prong plug such as on an extension cord, tied to the lower front fender or bumper area with a cable clamp (or Ty-Wraps if your unable to find a good cable clamp) make it just long enough to hang below the fender/bumper by a few inches.
Then the power cable from the AC source needs to be tied down securely where you park and reach the plug on the car. You could use a cinder block I suppose if nothing nearby to anchor to.

When/if you forget to disconnect and drive off, the tension on the cables causes the plug to come out. Sort of a hillbilly solution compared to the exotic Voltsafe device but should work.

You do have a timer on the ac to switch power to the block heater 3 or 4 hours before you intend to use the car, don't you?
DDH

__________________
'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!

Or you could use a longer extension cord and loop it around the driver's side rear view mirror. The old K.I.S.S. method.

__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now

thanks for the suggestions,

Other reasons for the desire to have a quick disconnect is I plan to connect a CTEK charger to the car periodically to keep the new AGM topped up. Supposedly that increases the life and starting ability of the AGM.

Plus as I get older, getting down and up again takes two hands and two feet more often than in the past, Plus the fiddling with the heater cord to plug and unplug it and put the cover back in place to keep moisture/salt out.

If I combined the heater with the CTEK connection, that would provide the best starting ability.

I do plan to change the glow plugs someday, just want to avoid snapping one off and going through the hassle and time if it can be delayed for a while.

It rarely gets cold enough on the days I plan to drive the car. We still have one tomato plant with about 20 tomatoes that is healthier than previous months. We just cover it with a bedspread on the few nights it gets close to freezing.

Hey Texasgeezer, one December I made the annual trek from CA to East Texas and I drove my '79 300TD that year. On a chilly evening we stopped in West Texas around sundown and checked into a Motel. I brought a travel kit including a 50ft extension cord for the block heater, some engine oil, suspension fluid, etc. The Motel had a number of vehicles with cords plugged in to outlets near the parking area and I did likewise. That morning it was 15 degrees and I started the engine and let it idle while I went in to pack and enjoy the heat in the room. I came out and saw a puddle of hydraulic fluid forming near a rear wheel, the shock was so cold the seals must have shrunk and let fluid out. Fortunately I had a bottle of the stuff and put most of it into the reservoir and sweated driving the car from there but it stopped dripping out so I continued on.
We stopped in Midland for lunch. Came out and - no start! the Neutral sense switch in the Trans shifter decided to pack it up. In my kit was a short piece of wire with clip leads on it which allowed me to manually place 12V onto the starter solenoid to start. Used that on the return trip and my wife thought my ole wagon was a waste of money. I still have it, we made several long trips and its now up to 368K w/ a turbo '85 engine in her which will probably outlast me!
I'm planning to sell it (maybe this is a prelude to a WTS ad) . DDH

__________________
'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!