PeachParts Mercedes-Benz Forum - View Single Post - MB engine block heaters E320 CDI & Bluetecs?

2.5Turbo · #13 02-03-2015, 03:20 PM

We also have to remember the common rail ECU's have complete control over injection timing and quantity, unlike the IDI engines we're all familiar with. It can take into account coolant and ambient temp and adjust accordingly, not unlike EFI in gassers.

The GP's also heat up much more quickly. I think they started to go with high speed ceramic plugs in these engines. I know on my dad's CDI, at above freezing temps at least you can crank it cold like a gas engine and it'll start right up without having to wait. We always wait for the light, but it's interesting to say the least. Try that with my 300D and you'll crank for a few seconds and then it'll caugh, smoke and sputter to life.