Kia SORENTO HEV 2023 Manual page 558

Maintenance
Normal maintenance schedule - for Europe
The following maintenance services must be performed to ensure good emission
control and performance. Keep receipts for all vehicle emission services to protect
your warranty. Where both mileage and time are shown, the frequency of service is
determined by whichever occurs first.
NO. ITEM
*1 Engine oil and engine oil filter
*2 Coolant (Engine)
*3 Coolant (HEV Inverter)
*4 Coolant (PHEV Inverter)
HSG (Hybrid Starter & Genera-
*5
tor) belt
*6 Spark plug
*7 Differential oil (Rear) (AWD)
*8 Transfer case oil (AWD)
*9 Fuel additives
8 14
僅 As it is normal for engine oil to be consumed during driving, the engine oil level
should be checked on regular basis.
僅 The engine oil change interval for normal operating conditions is based on the use of
the recommended engine specification. If the recommended engine oil specification
is not used, then replace the engine oil according to the maintenance schedule under
severe operating conditions.
When adding coolant, use only deionized water or soft water for your vehicle and never
mix hard water in the coolant filled at the factory. An improper coolant mixture can result
in serious malfunction or engine damage.
When adding coolant, use only deionized water or soft water for your vehicle and never
mix hard water in the coolant filled at the factory. An improper coolant mixture can result
in serious malfunction or engine damage.
Recommend that the coolant be replaced by an authorised Kia dealer/service partner.
Inspect HSG belt for evidence of cuts, cracks, excessive wear or oil saturation and replace
if necessary.
For your convenience, it can be replaced prior to it's interval when you do maintenance
of other items.
Differential oil should be changed anytime it has been submerged in water.
Transfer case oil should be changed anytime it has been submerged in water.
Kia recommends that you use unleaded petrol which has an octane rating of RON
(Research Octane Number) 95 / AKI (Anti Knock Index) 91 or higher (for Europe).
For customers who do not use good quality petrols including fuel additives regularly, and
have problems starting or the engine does not run smoothly, one bottle of additives
should be added to the fuel tank when the engine oil is replaced. Additives are available
from a professional workshop along with information on how to use them. Kia recom-
mends to visit an authorised Kia dealer/service partner. Do not mix other additives.
Scheduled maintenance service
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