I recently replaced the timing chain on my 2010 R55 S model after it failed on me while driving. Repair went great, I used the kit from Mini Mania. When I tried to start it, it revs but won't catch, every 5 seconds or so there is a soft pop from the exhaust. it smells a bit like fuel. I am also getting a P15E8 error code (P15E8 - Engine shutdown time, plausibility: Time too short relative to temperature drop in engine coolant) which doesn't make much sense to me. From other posts I've read, I am thinking this may be a battery issue? The car did sit for about 3 months after the timing chain went before I repaired it. Thoughts?