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Kia Stinger (CK) 2018-2023 Owner's Manual: Lumbar Support Unit
Repair procedures Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the front seat back cover. (Refer to Body - "Front Seat Back Cover") 3. Disconnect the lumbar support motor connectors (A). 4. Separate the retaining clips (A) from the seat frame.Service data Service data Item Specification Master cylinder Type Tandem Cylinder I.D. Ø 23.81 mm (0.937 in) Piston stroke 36±1 mm (1.41 ± 0.039 in) Fluid level switch Provided Brake booster Type 8+8" Tandem Boosting ratio 9 : 1 Front disc brake (17 in) Type Ventilated disc Disc O.