If lights are stong but no response when starting, check the neutral safety switch. Try starting in Neutral or push the shifter foward in Park while starting. But even if that doesn't work it could still be the switch. When mine went in the 190E nothing could coax a start out of it.

__________________
Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References