Checking the condition and tension of the accessory drive belt
Check the entire length of the belt for cracks, delamination and wear.
Make sure that when installing the label is in the area marked with the letter A.
Attention! Check the belt after turning the engine crankshaft clockwise for at least one revolution.
If the mark does not fall within the specified area, replace the drive belt.
Note. It is not necessary to check the accessory drive belt if a tensioner is installed.
Checking for damage on high voltage wires
Check the high-voltage wires and spark plug tips for damage, weakening of the clamping force of the contacts, and also check that they are installed correctly.
Check for dirt on the contacts of high voltage wires, spark plugs and ignition coils, etc.
If there is contamination, clean, if the elements are damaged, replace them.
Checking the air inlet
Dirt and dust on the air filter can contaminate the filter and reduce engine power.
Check the air supply pipe for cracks and damage.
Checking the oil line hose to the turbocharger
An oil leak from the oil supply hose to the turbocharger can lead to insufficient lubrication of this unit, which will lead to a decrease in engine power.
Check the oil supply hose to the turbocharger for cracks or damage.
Checking the breather hose of the forced crankcase ventilation system
Check the breather hose for cracks or damage.
Clean the inside of the breather hose if necessary.
Check if the filter of the forced crankcase ventilation system is clogged.
Checking the ventilation hose of the forced crankcase ventilation system
Check the entire length of the hose using a mirror if necessary.
Check that the fasteners are secure and that there are no leaks in the connections.
Hoses must be replaced immediately if there are signs of deterioration or damage.
Checking the forced crankcase ventilation system (PCV)
Remove the vent hose from the PCV valve.
Remove the PCV valve from the cylinder head cover.
Install the PCV valve and vent hose.
Start the engine and let the engine idle.
Place your finger directly over the PCV valve opening and check if you can feel the vacuum being created in the intake manifold.
In this case, the plunger in the PCV valve begins to move alternately back and forth.
If vacuum is not felt, replace the PCV valve.
Checking the PCV valve
Insert a thin rod into the PCV valve from the side shown in the figure (from the side of the cylinder head cover), and move it back and forth to check the mobility of the plunger.
If the plunger does not move, the PCV valve is clogged. The valve needs to be cleaned or replaced.
Replacing spark plugs
After removing the old candles, install new ones in their place and tighten with the recommended tightening torque.
Check radiator hoses for damage and secure connections
Check the entire length of the hose using a mirror if necessary.
Check that the hoses pass through the centers of the gaskets.
Check that the fasteners are secure and that there are no leaks in the connections.
Checking the coolant level in the expansion tank
Check that the coolant level is between the marks «MAX» And «MIN», on the expansion tank at normal engine operating temperature.
Replacing the coolant in the engine cooling system
Stop the engine after it has fully warmed up.
Add a detergent additive to the coolant to flush the cooling system and start the engine.
Loosen the drain plug, remove the radiator cap and drain the coolant.
Flush the cooling system by pouring clean water through the radiator neck.
Replace the drain plug after flushing is complete.
Drain the coolant from the expansion tank.
Install the expansion tank.
Depending on the expected operating conditions, determine how much long life coolant, antifreeze or corrosion inhibitor must be added to obtain the correct coolant. Recommended antifreeze: DIA QUEEN SUPER LONG LIFE COOLANT or equivalent.
Attention! Do not use alcohol-based antifreeze (including methanol) or various coolants mixed with alcohol-based antifreezes. The use of an inappropriate antifreeze can lead to corrosion of aluminum components.
Fill the cooling system with distilled water through the filler neck, top up with an appropriate amount of long life antifreeze if necessary.
Fill the expansion tank with coolant.
Install the radiator and expansion tank caps.
After road testing, check the coolant level.
Attention! When removing the radiator cap, be careful not to (steam or hot liquid may escape underneath.
Draining the coolant from the cylinder block through the drain plug
Drain the coolant from the cylinder block by unscrewing the plug on the block and then removing the radiator cap.
Drain the coolant from the cylinder block by removing the drain plug.
On all-wheel drive models, drain the coolant through the coolant supply pipe to the transfer case.
Remove expansion tank and drain remaining coolant.
After draining the coolant, flush the cooling system with water by pouring it through the radiator neck.
Coat the threaded portion of the drain plug with the recommended sealant and tighten to the recommended torque.
Recommended sealant: 3M Nut Locking Part No. 4171 or equivalent
Tightening torque: 44±5 Nm.
Close the radiator cap.
Install the expansion tank.
Select the appropriate coolant concentration between 30% and 60% depending on operating temperature. To fill the coolant, use the appropriate special tool (MB991871). Usually a solution of 50% distilled water and 50% antifreeze is used (freezing point -31°С).
Note. For a description of how to use the special tool MB991871 to fill the coolant, see the Workshop Manual.
Recommended antifreeze: DIA QUEEN SUPER LONG LIFE COOLANT or equivalent.
Refueling volume: 7.0 l.
Attention! Do not use alcohol-based antifreeze (including methanol) or various coolants mixed with alcohol-based antifreezes. The use of inappropriate antifreeze can lead to corrosion of aluminum components.
Install the radiator cap.
Start the engine and warm it up until the thermostat opens.
Touch the radiator hose with your hand to check for hot coolant circulation.
After opening the thermostat, press the gas pedal several times to briefly increase the engine speed, then turn off the engine.
Let the engine cool down and add coolant to the expansion tank up to the mark «MAX».
If the coolant level is too low, repeat the steps from starting and warming up the engine.
Checking the air filter for clogging or damage
Check the air filter for clogging and damage.
Clean the accumulated dust from the filter as follows.
Tap the filter lightly on the edge of the workbench.
Blow out with compressed air from the inside.
Remove dust from the filter cover.
Install the filter housing.
Air filter replacement
As the air filter becomes contaminated with dust during operation, its filtering capacity is significantly reduced. Replace the air filter.
Unfasten the filter cover lock.
Replace the filter element with a new one.
Be sure to completely close the filter element cover before fastening the latch.
Checking the electrolyte level in the battery
Check if the electrolyte level is between the high and low level marks.
Attention! If the electrolyte level is below the low level mark, the battery may explode during use.
Attention! If the electrolyte level is above the high level mark, electrolyte leakage may occur.
Use a thermometer and a rheometer to check the electrolyte density.
Standard value: 1.220 - 1.290 (20°C).
The density of an electrolyte changes with temperature, so the following formula is used to convert density values to a specific temperature. In order to determine the acceptability of a given electrolyte density, use the calculated value.
D20 = (t 20) x 0,0007 + Dt.
D20 is the density of the electrolyte, reduced to a temperature of 20°C.
Dt is the oreometer reading.
t - thermometer readings.
Fuel filter replacement
Remove the rear seat cushion assembly.
Remove the manhole cover.
Disconnect the connector, hose and tube.
Loosen the nuts and remove the fuel pump module.
Remove the fuel filter from the fuel pump.
Install a new fuel filter.
Attention! To prevent damage to the bushing and o-ring, coat them with unleaded gasoline just prior to installation.
Install the fuel pump module.
Tighten the mounting nuts to the recommended torque.
Recommended tightening torque: 2.5±0.4 Nm.
Connect the connector, hose and tube.
Attention! After connecting the high pressure hose or fuel supply line (4WD), lightly pull on it to make sure it is securely installed. Also make sure there is approximately 3 mm free play.
Install the manhole cover.
Install the rear seat cushion.
Checking for leaks in the exhaust system and the correct installation of its components
Make sure that the exhaust system does not come into contact with body parts.
Check whether the elements of the exhaust system are damaged by stones, etc.
Start the engine and check for leaks in the exhaust system.
Cabin filter replacement
Remove the glove box.
Turn out two specified screws and replace salon filter.
Install the glove box.