You can do them all at , but I can replace a single GP on a 240D in about 5 minutes, including getting out my tools and washing my hands. It's really pretty easy.

As I remember I just ran the "hot" wire through the light so when the button is pushed the light comes on. I used the push button without the solenoid on the loop style plugs (50 amps) but with the newer style the solenoid is needed (80 amps)

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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"

Stevo,

Not thru the light, to the light. Thru the light means the current for the GP goes thru the light which is impossible.

New2MB,

And how do you know its (GP relay) about to break? What about all the other parts in the car that are about to break? U must have a good crystal ball.

P E H