Transmission and fuel consumption problems on Skoda Kodiaq

It sounds like there might be an issue with the transmission control module or a problem with the dual-clutch system. Start by checking the transmission fluid level and condition, as low or dirty fluid can cause shifting issues. If the fluid is fine, it would be wise to have a diagnostic scan performed to check for any error codes related to the transmission or exhaust system. This will help pinpoint the exact issue. Given the safety implications, I recommend having a professional mechanic inspect it if the problem persists. Let me know how it goes or if you have any further questions!