My '77 240D has the early series, loop style glow plugs. As colder weather hits, it is more hesitant to start cold.
I have heard about the QUICK GLOW retrofit kit. What comes in the kit and approximately how much $$? Do you still use the existing relay?
I have checked the valves and all are good. Good battery and starter is healthy. Car has 142,000miles.

I have wondered if the Automatics cause more drag on the starter when cold. With a stick, you can push in the clutch.

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My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle.

Kit comes with plugs, wires to connect the new plugs together and a relay I think. All you really need are the plugs. You can make your own jumper wires to go from plug to plug. Put in the new plugs, disconnect the ground wire at the most forward plug, hook the rearmost plug to the glow system and put jumper wires between the plugs. I did this on my 77 300d and the quick glow plugs are much better. They don't waste any current in the heavy wires that go with the series plugs. The newer turbo starter will also spin the engine faster if that is what you want.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13