Oil Leak I was making a cake, and oil leaked into the bowl and I had to throw out the batter. It seems to be leaking up by the beater area.

There is a leaking gasket. The OIL is from the Grease applied to the gears. It may have somewhat turned a portion of lube to a liquid state due to heat within the motor housing during use. The OIL as you put it, could also leak out from the port where you insert the beaters. If so there is also a set of seals to prevent that from happening, and if they are worn or damaged, leaking can occur. This unit needs a professional serviceman to fix the problem.

Probably going to need to narrow it down to an area, is it the beater scraping the bowl? Is it in the planetary? Is it in the gearbox? Is it in the armature area? Those are all ideas of where it can be but really hard to offer solutions without you narrowing down the search area.

It's pretty impossible to say for sure without having been there to witness it, but it seems possible that it happened. Some mechanical oils and greases are all-natural and wouldn't harm you if you ate a little of them, but that's not something that KitchenAid would ever tell you. As frustrating as it is, I for one would probably choose the safe route and make a new batch.

The agitater shaft that the beater attaches to is bent and needs to be replaced. It's easy to do . You should replace the shaft , pin, and seal above it. You may also want to replace the part the shaft mount through, to stop oil leak. You can google the model number and find a parts breakdown for the part numbers .

the beater is simply pushed away from the bowl edge temporarily and stops, as the rubber groove loses contact with the rotating bowl.

It can be. This may require replaing the plate that the shaft comes through, since there is now enough play to allow the grease that is in the nead to leak through. You can find the parts online, but be ware, it involves tapping out pins and undoing many screws. Manuals are available online at Kitchenaid.com

The "wobbling" sounds like an issue of beater to bowl adjustment, which can come out of alignment naturally over time and with use of the machine.

If the flat beater is striking the bottom of your bowl, this may cause the locking mechanism to loosen and may cause the mixing head to "bounce" during use.

Your Use and Care Guide will cover the "beater to bowl adjustment," which you can do at home in a few minutes with a flathead screwdriver.

Also, leaking of oil in a stand mixer is not necessarily indicative of a large problem.

Kitchenaid stand mixers are overpacked with oil to last the lifetime of the motor. If the motor sits idle for some time (is not used), the oil may begin to drip from the gears and settle. Oil leakage may primarily be seen from around the beater shaft or planetary action.

A stand mixer can lose up to a 1/4 cup of oil before it needs to be serviced.

It is recommended to run the mixer on speed 10 for 2 minutes in order to redistribute oil back into the motor. In order to prevent future occurences, this is recommended to be done every 3 weeks if mixer is not being used.

I went to Kitchen Aid'sKitchen Aid's web site and had an on line chat with a tect support person name Jessica. She told me that if the mixer is not used a small of oil will leak out. to fix the problem you must run the mixer for a few minutes every month or so. This seems to work.
Rick

thats the planetary seal thats leaking.the seal is cheap its the labor that may be costly.is it just a nuisance leak or a lot?you dont want any oil to get in your mix.

Try a higher speed , this should force the batter out using the centrifugal force generated