Renault Scenic Check Engine Light

My Car Has Developed The Ignition Coils Problem. It Starts And Runs Normally From Cold Until It Gets Warm Then The Toxic Fume And Check...

The Dreaded Light Is On,and The Message Says.check Emissions What Does It Mean And Do I Need To Take Out A Mortgage To Get It Fixed

What Does Egr Stand For. As I Have Got A Little Engine Light Come On And It Say's In The Manual That It Is The Exhaust Gasses

I Have A Scenic Megane 2001 1600cc Auto The Auto Light Keeps Coming On And A Thud From The Gearbox Stop Car Restart And It Will Happen Again...