Hello, at the Renault Scenic III 85kW gasoline engine with 85,000km there is a very unround motor run/power loss/flash. ADAC was there, OBD diagnosis says: Appendix – diagnostic protocol (read out error codes): Diagnosis result 1 (time 18:55) Error no. Error description DTC 0301F8 combustion Zyl. 1 diagnostic result 2 (time 18:54) Error no. Error description DTC 013613 Lambdasonde according to Kat. DTC 0301F8 combustion Zyl. 1 DTC 030166 combustion Zyl. 1 DTC 0304F8 combustion Zy l. 4 DTC 030466 Combustion Zyl. 4 DTC 0300F8 Combustion spout DTC 030066 Combustion spout The ADAC man said, probably ignition coil of cylinder #4. I changed the ignition coil, unfortunately no success! Also I installed the developed ignition coil of cylinder #4 for safety in #1, also no improvement. Do you have another idea? Thank you!