Kia Optima: Engine Electrical System

Kia Optima DL3 2019-2024 Service and Repair Manual / Engine Electrical System

Service data

Service Data

Ignition System

Ignition Coil

Item	Specification
Primary Coil Resistance (Ω)	0.75 ± 15% [20°C (68°F)]
Secondary Coil Resistance (kΩ)	5.9 ± 15% [20°C (68°F)]

Spark Plug

Item		Specification
Type	UNLEADED	SILZKR7B11
Type	LEADED	SILZKR7B8
Gap	UNLEADED	1.0 - 1.1 mm (0.0393 - 0.0433 in.)
Gap	LEADED	0.7 - 0.8 mm (0.0275 - 0.0314 in.)

Charging System

Alternator

Item		Specification
Rated voltage		13.5V, 120A
Speed in use		1,000 - 18,000 rpm
Voltage regulator		IC Regulator built-in type
Regulator Setting Voltage	External mode	Refer to below graph
	Internal mode	14.55 ± 0.3V
Temperature Gradient	External mode	0 ± 3 mV / °C
	Internal mode	-3.5 ± 2mV / °C

Battery

▶CMF68L-DIN

Item	Specification
Model type	CMF68L-DIN
Capacity [20HR/5HR] (AH)	68 / 54
Cold Cranking Amperage (A)	600 (SAE / EN)
Reserve Capacity (Min)	113

•	Model type description

•	Cold Cranking Ampere (CCA): Cold Cranking Amps is a rating used in the battery industry to define a battery's ability to start an engine in cold temperatures.

–	The rating is the number of amps a new, fully charged battery can deliver at -18 °C(-0.4 °F) for 30 seconds, while maintaining a voltage of at least 7.2 volts for a 12 volt battery.

–	The higher the CCA rating, the greater the starting power of the battery.

•	RESERVE CAPACITY (RC) : Reserve Capacity is a battery industry rating, defining a battery's ability to power a vehicle with an inoperative alternator or fan belt.

–	The rating is the number of minutes a battery at 26.7 °C(80 °F) can be discharged at 25 amps and maintain a voltage of 10.5 volts for a 12 volt battery.

–	The higher the reserve rating, the longer your vehicle can operate should your alternator or fan belt fail.

BCI Type

Capacity (5 hr / 20 hr)	Length	Width	Height	Total Height
Capacity (5 hr / 20 hr)	L (mm)	W (mm)	H (mm)	TH (mm)
28/35	188 - 192	126 - 130	198 - 202	218 - 222
32/40	194 - 198	133 - 137	199 - 203	223 - 227
36/45	203 - 207	173 - 177	200 - 204	221 - 225
44/55	213 - 217	173 - 177	198 - 202	218 - 222
48/60	228 - 232	173 - 177	200 - 204	221 - 225
54/68	258 - 262	173 - 177	198 - 202	220 - 224
56/70	258 - 262	173 - 177	198 - 202	223 - 227
64/80	274 - 278	170 - 174	198 - 202	221 - 225
70/88	349 - 353	172 - 176	186 - 200	183 - 187
72/90	300 - 304	170 - 174	200 - 204	221 - 225
76/95	294 - 298	172 - 176	198 - 202	220 - 224
80/100	326 - 330	170 - 174	203 - 207	225 - 229

DIN Type

Capacity (5 hr / 20 hr)	Length	Width	Height	Total Height
Capacity (5 hr / 20 hr)	L (mm)	W (mm)	H (mm)	TH (mm)
36/45	205 - 207	173 - 175	164 - 168	188 - 190
48/60	240 - 242	173 - 175	164 - 168	188 - 190
54/68	276 - 278	173 - 175	164 - 168	188 - 190
64/80	313 - 315	173 - 175	164 - 168	188 - 190
72/90	351 - 353	173 - 175	164 - 168	188 - 190
80/100	351 - 353	173 - 175	164 - 168	188 - 190
88/110	392 - 394	173 - 175	164 - 168	188 - 190

AGM DIN Type

Capacity (5 hr / 20 hr)	Length	Width	Height	Total Height
Capacity (5 hr / 20 hr)	L (mm)	W (mm)	H (mm)	TH (mm)
40/50	205 - 207	173 - 175	164 - 168	188 - 190
48/60	227 - 229	173 - 175	164 - 168	188 - 190
56/70	276 - 278	173 - 175	164 - 168	188 - 190
64/80	312 - 314	173 - 175	164 - 168	188 - 190
72/90	351 - 353	173 - 175	164 - 168	188 - 190
84/105	392 - 394	173 - 175	164 - 168	188 - 190

Starting System

Starter

Item		Specification
Rated voltage		12V, 1.2 kW
The number of pinion teeth		13
Performance [No-load, 11V]	Ampere	70A
	Speed	Min. 2,400 rpm

Ignition System

Charging System

Starting System

Timing Chain

Components and components location Components 1. Intake camshaft 2. Exhaust camshaft 3. Intake CVVT assembly 4. Exhaust CVVT assembly 5. Timing c ...

Ignition System

Description and operation Description Ignition timing is controlled by the electronic control ignition timing system. The standard reference ignition timing data for the engine operat ...

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