Noticed a little rattly noise from the engine bay but thought it was my exhaust on the way out again. Noise got worse and this morning i noticed the engine moving alot when lifting off the throttle. Ran by the dealer and they checked it over.
It turned out to be the lower left engine mount. The two bolts fixing it to the engine had come loose, one was completely gone and the remaining one was only hanging on by a couple of threads. There was no evidence of thread lock on the reamainng bolt!
I would recomend a cursory check, the engine was moving so much it was hitting the bulkhead and the mil light came on. I am not sure why but i presume a sensor has been knocked or a cable snagged.
Anyway, worth a check, if Lotus are forgetting to put thread lock on important bolts.