That's typical that the front and door don't get hot enough to self-clean. You can use COLD fume-free Easy Off.

Have heard of people running cast iron thru oven self-clean cycle, but have no experience. Seem to recall a post "somewhere" of someone putting gunked up cast iron on wood pile in outdoor fire pit!?! Do NOT know for sure, but imaging good quality stuff (not made in China) should be fine... CI is pretty darn indestrucible!?! I was re-introduced to CA a few years ago when I found 2 difference size skillets at a yard sal for almost nothing. They were all "name" pieces... Lodge, Griswold, etc. And TOTALLY cruddy with soeone else's "seasoning". I did was is probably considered HERESY among purists... used spray oven cleaner on them. After SEVERAL applications of the stuff, one of the skillets was almost silvery/shiny! All were cleared of their crud. Then I just reseasoned. I think one of the keys to successfully using CI is USING it as often as possible. If I cook something that doesn't just wipe out, I'll use cheap salt and a scrubber. Then lots of hot water to rinse. Back on stove top to get nice and HOT, then a dab of bacon grease... that's what my Grandmother always did.

I always have used a pot of water and some vinegar, heat my oven to 450*-500* and run my oven for about an hour. Once cool enough wipe down, for tougher stains use the method here below....I also never let my oven get too dirty so it's never a big problem for me getting it looking good. >>>>link to cleaning oven: Soak The Grates Remove all of the grates. Fill a utility tub or bathtub with HOT water and a non-toxic cleaner like Simple Green. Let them soak, the longer the better – over night if you can. (Careful not to scratch your tub!) Remove them and scrub off residue with a heavy duty scrubbing pad or fine steel wool. For extra scrubbing make a paste made from baking soda and lemon juice and have at it. Give Your Oven A Steam Bath Remove the grates and wipe or vacuum out any loose debris. Put back a grate on the bottom rack and place a large metal baking dish filled with water and about 1/2 cup of white vinegar. Heat at 350° and let the water bubble, steam, and do its thing. Turn off the oven, then carefully spray the inner surfaces with a water/vinegar solution (don’t burn yourself!). Close the door and let it stand at least 30 minutes. Once cooled enough to work, wipe it down. If stubborn spots persist, scrub with a paste of baking soda and lemon or vinegar. If you want to get fancy, try Simple Green Heavy Duty BBQ and Grill Cleaner – it’s recommended for use in ovens too. Bonus Info & Tips The sooner a spill is cleaned, the easier it is to get rid of. Put foil or a cookie sheet under stuff that can bubble over—prevention is the best remedy. Self-cleaning ovens that use pyrolytic cleaning (heat) create a lot of smoke and odor. It’s also a feature notorious for malfunctioning. I personally never use it. Steam cleaning ovens are a newer oven feature that clean in less time with no smoke and odor but are not quite as effective as pyrolytic ones. Regarding microwave ovens, don’t use any cleaners inside the unit. Bring a cup of water to boil in it, then wipe it down. In a nutshell, hot water, steam, a few natural ingredients and soak time can make your stinky ole oven fresh as a daisy… which makes me wanna go take a bath.

Get the 6560BP, Miele ovens' pyro cleaning works fine. I don't have one my self, but it was on the table if I was to get two ovens set up.