Car maintenance Hyundai Sonata 4

Service intervals
Note: The recommended service intervals must not be exceeded by more than 2000 km or 2 months. If the vehicle is mainly used in severe conditions, as described below,...

Rules for performing work in the engine compartment
Location of service items in the engine compartment. 1 - washer reservoir, 2 - power steering fluid reservoir, 3 - brake fluid reservoir, 4 - air filter, 5 - engine...

Checking the engine oil level
1. Place the vehicle on a flat, horizontal surface. 2. Warm up the engine to normal operating coolant temperature. Note: If the car has been parked for a long time, warm...

Changing engine oil and filter
Note: When operating the vehicle in difficult conditions, change the oil twice as often. When changing the engine oil, it is recommended to replace the oil filter at the...

Checking the coolant
1. Check that the coolant level in the expansion tank is between the "FULL" and "LOW" marks on the tank wall when the engine is not warmed up. If the coolant level is...

Replacing the coolant
Caution: The coolant contains ethylene glycol and an anti-corrosion additive. Since the radiator, cylinder head, coolant pump housing and cylinder block (2.7L engine)...

Checking the air filter
Note: Using an incorrect or dirty air filter can cause premature engine wear due to air containing abrasive particles entering the cylinders. 1. Open the air filter...

Rechargeable battery
General information The new car is equipped with a maintenance-free battery, which is completely sealed (except for a small ventilation hole in the cover), has no...

Checking and cleaning spark plugs
Attention: To avoid burns, it is recommended to remove spark plugs on a cold engine. (2.7L engine) Access to the spark plugs of the right cylinder head is difficult due...

Checking high voltage wires
1. Check the condition (absence of cracks and damage to the insulation) and correct installation of high-voltage wires and their caps. 2. Disconnect the high tension...

Checking the idle speed
Note: Before starting the adjustment, check the spark plugs, injectors and idle speed control servo drive for proper operation. Also, make sure that the compression...

Checking for increased idle speed when the air conditioner is turned on
1. Before starting the inspection procedure, prepare the vehicle (see section " Checking the idle speed "). 2. Check that the idle speed is within the specified value...

Checking the ignition timing angle
1. Before starting the inspection procedure, prepare the vehicle (see section " Checking the idle speed "). 2. Turn off the ignition and connect the tester to the 16-pin...

Compression check
Note: If high oil consumption, loss of engine power or poor fuel economy is detected, a compression check should be performed. 1. Before measuring the compression, check...

Checking and adjusting drive belts of attachments
Checking the drive belts of attachments 1. Check the drive belt for damage and excessive wear and make sure it is installed correctly in the pulley grooves. If the belt...

Checking the condition of the timing belts and balance mechanism (2.0L / 2.4L engines)
1. If necessary, remove the upper timing belt cover to gain access to the drive belt. 2. Check the correct installation of the timing belt. Attention: Do not bend, twist...

Replacing the fuel filter
1. The fuel filter is an integral part of the fuel pump assembly located on the fuel tank and cannot be replaced without complete disassembly of the fuel pump assembly....

Checking the power steering pump fluid level
Caution: Do not start the engine if the power steering fluid reservoir is empty. Note: at low temperatures (below -20°C) extraneous noise ("crunch") may appear from the...

Replacing the power steering pump fluid
1. Jack up the car, install stands and lift the front wheels off the ground. 2. Disconnect the return hose from the power steering reservoir and install the plug in the...

Bleeding the power steering system
1. Jack up the car, install stands and lift the front wheels off the ground. 2. Disconnect the high-voltage wires from the ignition coils. To bleed the system, crank the...

Checking the brake fluid level
1. Check the brake fluid level in the brake hydraulic reservoir. The level should be between the "MAX" and "MIN" marks. Brake fluid type: DOT3 or DOT4 Note: As the brake...

Checking the clutch release fluid level (manual transmission models)
1. The fluid level should always be between the "MAX" and "MIN" lines on the tank. 2. If the level is below the "MIN" mark, add brake fluid. Attention: Rapid fluid...

Checking the oil level in a manual transmission
1. Place the vehicle on a level, horizontal surface. Check for oil leaks. 2. Unscrew the gearbox filler plug located at the front of the vehicle. 3. The oil level in the...

Changing oil in manual transmission
1. Drive the vehicle until the transmission fluid reaches operating temperature. 2. Place the vehicle on a level, horizontal surface. 3. Unscrew the filler plug and the...

Checking the condition and level of working fluid in the automatic transmission
1. Drive the car until the working fluid (ATF) in the gearbox reaches normal operating temperature (70-80°C). 2. Place the vehicle on a level, horizontal surface. Apply...

Replacing the working fluid in the automatic transmission
Note: this procedure is carried out only if there is no special installation for quick replacement of automatic transmission fluid (ATF). 1. Place the vehicle on a...

Replacing the automatic transmission fluid filter
1. Remove the air filter assembly, then use a special tool (filter chain wrench) to loosen the bolts and remove the automatic transmission fluid filter. 2. After...

Checking the washer fluid level
1. Check the washer fluid level in the reservoir regularly. If the fluid level in the windshield washer reservoir is low, top it up. Washer reservoir capacity: 3.0 l 2....

Replacing the cabin filter
Caution: When operating the vehicle in dusty areas or in rough terrain, check and replace the filter element more often than usual. 1. Open the glove box, remove the...

Air conditioning system refill
The procedure for filling the air conditioning system is described in the corresponding section of the chapter " Heater, air conditioner and ventilation system "....

Additional checks
1. Lubrication of hinges and latches. Check all hinges and latches, and if they require lubrication, clean them first and apply a general purpose lubricant. 2. During...

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