Wifey has an 03 147 which decided not to start yesterday. EBD fault up so I tried a jump start which failed (car a bit weak turning over and didn't fire).
Removed the battery and had it tested at Halfrauds (cells ok but charge was down a bit).
Recharged overnight and refitted this morning. Now for the fun bit.......
Engine turned over much better but then came the bang and smoke from the engine
After I changed my trousers I (maybe stupidly) tried again. Turned over well again a few times but another (much smaller) bang again. Obviously stopped at this point.
I can report that the spark plugs were changed a few months back and I'm not getting any error messages coming up including MCF or EBD.