How to Service Your Igniter and Replace the Atomizer Screen 

If you use a pick and medical forceps it’s much easier to grab on to the atomizer screen to pull out. The forceps are thinner and you can lock the handle closed to get a better grip to pull the screen out.

Great video. You explained so well.

Perfect video,thank you so much....

Extremely vital info. Brill

I Discover that the heater, startup more Better, if i remove One turn of the layer from the grid atomizer...and this make more Easy remove It in future maintenance

Pro tip, jutuse a pick to mash up the screen into a mangled ball, thread a wood screw down into there and pull it it.

Good explanations Mike.

thanks very much 👍🏼

Be prepared. If that screen is caked in there. It will be a pain to get out. Biodiesel does not play well with these. Most of the time if it takes around 3 times for a flame to start and just spewing smoke, that air hole is usually plugged it can be unplugged with the screen still in. If it's dead of winter and your in need of a quick fix get a 12mm deep well socket and using a dremel cut a slice down the side with a dremel for the glow plug wires to fit. The tool is insanely expensive at $80. Its been about 3 years so I went ahead and got a new plug for $150 and a tool comes with it. Do not get the thermal king plug! It is $100 more than the espar one. Take out the glow plug and bend a large paperclip to clean out that hole. Heater should start again and get you through the winter "hopefully". Dont keep trying to restart and restart it, then the contol module will lock it out and will need a diagnostic tool to unlock. But as soon as possible replace that screen and the fuel filter at the pump. The screen is $9 and the fuel filter is $3.50. If you have a thermoking evolution it will be fitted with a fuel warmer and it is a nightmare to get out. Replace them every year late spring when its warm out. As always use anti gel in the fuel if it drops below 10 degrees

Thank you for the good explanation and instructions. However, I have been surprised (not pleasantly...) how much maintenance is required of the/my 2-1/2 year old S2D2L heater. When it starts and runs reliably it is a fantastic heater but seems to overly engineered like so many German automotive products and requires an inordinate amount of care/maintenance/service compared to former Webasto, et al. Give it to the Japanese to re-design & mfg and I think it would be near perfect.

The S2 heater doesn't look like this, and there doesn't seem to be a way to remove the glow plug wires. Will you be doing a video for the S2? My heater is currently taken apart, and I can't find any information about it.

Good explanations but I’ve had issues with my D2 more often than others. Can you post a follow-up video showing how to do this on the vehicle? Or, do you recommend taking it off for service? If so, what about glycol and fuel lines? Any priming involved?

So how is the 12 mm oxygen sensor socket (thank you for that!) different from the 12 mm socket included for tightening only? trying to understand. Excellent video and great update from the one before. Thanks

No, you don't always have to get new parts. If you use a larger lag screw you can pull the atomizer screen out without damaging it and reuse it if you clean it off. I suggest brake cleaner and a good jet nozzle on your air compressor to blow it clean. If your glow plug still works (you can just check it with 12 volts) you won't need to always order new parts. The same goes with the larger screen at the rear of the larger heat chamber. Keep it clean and your heater will serve you fine.

Awesome video. I thought it was my relay and when I disconnected it I shorted out the fuse. Do you know where it’s at. If I key my ignition it will turn on my controller and allow me to the. On heater but that’s only with the key turned on ACC

a lag bolt wrks good b careful of the threads tho

Mike, did you mean a 22mm O2 socket? I can't find a 12mm anywhere. I'm on the road, in Park City Utah, in the middle of winter and I need to perform this service. Thanks in advance!

Where did you find 12mm o2 socket

It is not so difficult, This man just don`t know how it should to be done.