Contents: For vehicles with engine letter…⬇ All ⬇ All-wheel drive vehicles ⬇ Front wheel drive vehicles ⬇ All ⬇ Car with independent heater ⬇ All ⬇ For vehicles with engine letter…⬇ All ⬇ For vehicles with engine letter…⬇ All ⬇
The engine temperature should not be higher than 35°C, otherwise the cylinder head may become skewed when unscrewing the screws. The pistons should not be in the TDC position.
Caution! When performing installation work, especially in the engine compartment due to its dense layout, the following instructions must be observed: all types of lines (fuel, hydraulic, coolant, refrigerant, brake fluid, vacuum) and the wires should be arranged in the original order provided by the manufacturer (using appropriate fastening elements). To avoid damage to hoses, tubes or wires, it is necessary to provide sufficient distance to all moving or heated parts. During installation, install all heat-protective cuffs in their places.
Remove the upper engine cover. Remove the front upper coolant pipe. Remove the lower coolant pipe. Remove the left coolant pipes. Remove the exhaust pipe. Remove the toothed belt from the camshaft. For vehicles with engine letter designation CLHA, CLHB, CKFB, CKFC, CRVC, CUPA
Open the heat shield "1". Remove the electrical connector "4" from the bracket and disconnect it, release the electrical wire. Disconnect the electrical connectors -3, 5- and hang up the wiring harness. Unscrew the screw "2" and put the bracket with the differential pressure sensor "G505" back.
For vehicles with engine letter designation CRKB
Open the heat shield "1". Disconnect electrical connectors -3, 5, 6- and release the wiring harness. Unscrew screw "2", Disconnect connector "4".
Disconnect and set aside the vacuum hose "arrow". Remove the holder with the differential pressure sensor and set it back.
All
Disconnect hose "1" of the crankcase ventilation system from the cylinder head cover by pressing the hose clamps. Release the vacuum hoses "arrows" on the air pipe. Unscrew screw "2", move the air duct with the intake manifold fitting back and disconnect from the turbocharger, -Ignore position 3-.
Unscrew the "arrow" screws and remove the pre-chamber "1".
Loosen clamp "1" and remove the coolant hose. Loosen screw "2", unscrew screw "3" and turn the coolant hose to the side.
Disconnect the connectors and release the wire harnesses.
2. Exhaust gas temperature sensor 4 "G648"
3. Exhaust gas temperature sensor 3 "G495"
Remove the electrical connector "4" of the lambda probe "G39" from the bracket, disconnect it and release the electrical wire.
All-wheel drive vehicles
Remove the EGR radiator.
Front wheel drive vehicles
Push aside the heat shield and disconnect connector "5". Loosen hose clamp "3", remove air hose. Loosen clamp "4" and remove cooling system hose. Unscrew screw "1" and loosen screw "2". -Ignore position 6.
[Information copied from the resource SKODABOOK]
All
Unscrew screw "1", remove the clamping sleeve. Loosen stud "2", press back the coolant pipe slightly. Unscrew screws "arrows", press back the exhaust gas neutralization module, and on a front-wheel drive vehicle - also the exhaust gas recovery cooling radiator.
Unscrew screw "2" and union nut "4", Unscrew screws -3, 5-, remove the oil return drain pipe. -Ignore position 1.
Car with independent heater
Lift the fastening brackets "1" and loosen the clamp "3", disconnect the cooling system hoses. Unscrew the nuts "arrows" and remove the cooling system pipes.
All
Unscrew screw "2", only loosen screws -1, 3, 4.
For vehicles with engine letter designation CRKB
Disconnect connectors -1, 3-. Loosen clamp "2".
All
Disconnect and release the connectors.
1. Boost air temperature sensor after intercooler "G811"
3. Boost pressure sensor "G31"
4. Intake air temperature sensor "G42"
5. Throttle control unit "J338"
Unscrew screws -2, 7-, remove coolant hose "6". Unscrew bolt "1" of the oil dipstick guide tube. Unscrew screws -2, 3- of the intake manifold bracket.
For vehicles with engine letter designation CRKB
Remove the throttle control unit "J338".
All
Remove the camshaft housing. Disconnect connector "3" and remove from cover "2". Unscrew screw "1" and remove cover.
Unlock the "arrow" lock, disconnect the vacuum hose "1". Disconnect the vacuum hose "2". Unscrew the screw "3".
Disconnect electrical connector "2" of coolant temperature sensor "G62". Loosen clamp "1" and remove coolant hose. Disconnect vacuum hose "3".
Disconnect the electrical connectors from the glow plugs. Set the wiring harness aside.
Loosen the cylinder head mounting screws in the sequence -1...10-.
Note: To remove the cylinder head from the engine compartment, you will need the help of a second mechanic.
Tilt the cylinder head to the left, remove it from the rear of the timing belt housing and remove the tension roller at the same time. Be careful not to damage the turbocharger oil return line. Place the cylinder head so that the oil return line does not bend. If necessary, place a wooden block under the exhaust manifold.
Caution! Careless handling of the removed cylinder head can damage the glow plugs. Do not place the removed cylinder head with the glow plugs installed on the bearing surface, because the glow plugs protrude slightly beyond it.