The coils are not set in epoxy. They plug in to sockets, just like relays. They are meant to be removable and ( if you have any electronics background) you can check the primary and secondary coil resistance...just like any other electronic coil. Also, you can easily see the oil level through the plastic casing. By the way, the oil is very light and when you flip it over , it takes only a few seconds to flow back. They all appear to be about 3/4 full. To get to the coils, there is a plastic cover to remove(six screws) no glue, no epoxy, no gasket. Granted , a repaired unit may not last another 100 K but it will get you home.. For the sceptics, I will post a link to pics of a disassembled DI cassette. The individual coils are the only removable parts, the rest is firmly set in epoxy and probably not worth the effort.
Ignition cassette failure? (2001 95 2.3T)
May 19, 2005
23 Replies
Which engine is this for? We had a pretty lengthy discussion about all things DI-ish a year ago or so here, with one guy going to extreme means to de-epoxy his dead one.
The Workshop manual for my 9-3 doesn't mention any fault codes. The test method it gives is to fit 4 "test spark plugs", ground them all with croc clips, make sure it's the right way up and then use the "tech 2" tool to fire up the coils one at a time.
Incidentally, it has the DI cassette down as the second thing to test when the car won't start. The first is fuel pressure.
Cheers,
Colin.
Frosty,
Saw your pictures. Yours was one of the very early DI cassettes. I know that because yours still has the pigtail wiring on it. As of 1993 all DI cassettes had a connector on the end and I'm fairly certain they do not have replaceable parts as yours did.
Perhaps this is the cause of all the misunderstandings?
-Fred W
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