The AutoCraft Gold battery in the Mercedes 300D lasted 7 years

Posted By on December 16, 2018


If you can get 7 years out of a car battery, that pretty good. I usually start watching them in my daily driver after 5 years, but this hefty 950 cold cranking amp AutoCraft Gold battery doesn’t have to work everyday … although sitting might be even harder on a lead acid battery? In any case, it started the car every time up until about a week ago, and then it didn’t. MB300DTurbodieselLightsOnIt went completely D-E-A D showing only 9.05 volts on my tester. Shocking as sort of expected a little more warning.

What was really surprising is that even sitting overnight on a charger and with a 400 amp jump-starter pack, the Mercedes 300D Turbodiesel wouldn’t start the car (heavy old diesels are hard to turn over, especially when it is a bit colder and need to also heat glow plugs). Eventually I did get it boosted after fully charging the battery, jumper pack and setting my charger to a 50 amp booster.

Whew … I think I need to find a new battery. Should I go traditional lead acid again, an AGM or should I retrofit one of those fancy spiralcell Optima batteries? I do have plenty of room in my fairly new battery tray.



Desultory - des-uhl-tawr-ee, -tohr-ee

  1. lacking in consistency, constancy, or visible order, disconnected; fitful: desultory conversation.
  2. digressing from or unconnected with the main subject; random: a desultory remark.