Here are some important points if you decide to pull a trailer:

M/T : Manual transaxle
A/T : Automatic transaxle
DCT : Dual clutch transmission
Maintenance when trailer towing
Weight of the trailerKia Cee'd JD Service Manual: Repair procedures
Removal and Installation
1.
Remove the engine room under cover (A).
Tightening torque:
3.9 ~ 5.9N.m (0.4 ~ 0.6kgf.m, 2.9 ~ 4.3lb-ft)
2.
Installation is reverse order of rem ...
Kia Cee'd JD Service Manual: CVVT (Continuously Variable Valve Timing) System Description and operation
Description
Continuous Variable Valve Timing (CVVT) system advances or retards the valve
timing of the intake and exhaust valve in accordance with the ECM control signal
which is calculated by the engine speed and load.
By controlling CVVT, the valve over-lap or under-lap ...