Kia Cee'd: Charging System / DC DC Converter Repair procedures

Removal
1.
Disconnect the battery negative terminal.
2.
Remove the glove box housing.
(Refer to Body - "Glove Box Housing")
3.
Disconnect the DC/DC converter conector (A).
4.
Remove the DC/DC converter (B) after removing nuts.
[LHD]

[RHD]

Installation
1.
Install in the reverse order of removal.
  
After reconnecting the battery negative cable, ISG function dose not operates until the system is stabilized, about 4 hours.
If disconnecting the negative (-) battery cable from the battery during repair work for the vehicle equipped with ISG function, Battery sensor recalibration procedure should be performed after finishing the repair work.
(Refer to Charging System - "Battery Sensor")
DC DC converter installation nut:
4.0 ~ 6.0N.m (0.4 ~ 0.6kgf.m, 3.0 ~ 4.4lb-ft)
DC DC Converter Schematic diagrams
Circuit Diagram ...

Battery Description and operation
Description 1. The MF(Maintenance Free) battery is, as the name implies, totally maintenance free and has no removable battery cell caps. 2. ...

Other information:

Kia Cee'd JD Service Manual: Specifications
Specifications IMS Electrical System   Item Specification Rating voltage DC 12V Operating voltage DC 9V ~ 16V Operating temperature -30°C ~ +80°C ...

Ford Escape 2020-2021 Owners Manual: Fuel Quality
Selecting the Correct Fuel Choosing the Right Fuel Your vehicle operates on regular unleaded gasoline with a minimum pump (R+M)/2 octane rating of 87. Some fuel stations, particularly those in high altitude areas, offer fuels posted as regular unleaded gasoline with an octane rating below 87. ...

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