Oil Pump With Coolant Guide Housing - Engine Removed
Removing and installing oil pump with coolant guide housing
Preliminary work
Warning
Risk of injury from hot engine and hot engine fluids.
^ Danger of burns, scalding, damage to skin, injury to the eyes.
-> Do not carry out work on the engine while it is hot.
Warning
Coolant is corrosive and hazardous to health.
^ Risk of skin and eye irritation.
-> Wear protective gloves and goggles.
-> If you come into contact with coolant, wash off immediately with plenty of warm water.
1. Drain engine oil.
2. Drain coolant.
3. Remove air cleaner housing.
4. Loosen drive belt.
5. Loosen air-conditioning compressor, move it aside in the engine compartment and secure it. Do not open the air-conditioning system to do this.
6. Loosen positive crankcase ventilation line on housing on cylinder head 4-6.
7. Remove housing for positive crankcase ventilation -1- on cylinder head 4-6. Unscrew two M6 Torx screws -2- and take off housing.
Positive crankcase ventilation housing for cylinder bank 4-6 on 3.8 l engine
Connection for positive crankcase ventilation on 3.6 l engine
8. Remove support for air-conditioning compressor -3-. Unscrew two M8 cheese head bolts -4- and remove support.
9. Loosen coolant hose in the engine compartment on the right -3-. Remove spring clamp -2- on Henn coupling and pull off hose.
Coolant hose in engine compartment on the right, vacuum line
10. Remove coolant hose -1- on the coolant guide housing by opening the spring band clamp -2-.
Coolant hose on bottom of housing
11. Remove catalytic converter.
Danger
Risk of engine falling down.
^ Danger of fatal injury, material damage.
-> Support the engine with the prescribed tool.
12. Remove engine carrier.
Removing oil pump
Removing oil pump with coolant guide housing
1. Turn the engine clockwise at the crankshaft pulley or vibration balancer as far as the TDC marking and disconnect it with a locating pin.
Crankshaft pulley at TDC
2. Remove green plugs on the cylinder head for cylinder bank 1-3.
3. Check camshaft position on cylinders 1-3.
3.1. The adjusting gauge 9686 must not fit into the slit on the camshafts. If this is the case, the valves on cylinder 4 are positioned correctly at the overlap.
3.2. If the adjusting gauge fits into the slit on the camshafts, the valves for cylinder 1 are at the overlap position. In this case, the engine must be turned a further 360° clockwise and disconnected again at the TDC marking.
4. Remove chain tensioner for cylinder bank 4-6 -1-.
Upper coolant guide, chain tensioner
5. Remove oil pump with coolant guide housing. Also remove the drive belt guide -4- on Tiptronic vehicles.
Overview of screws for oil pump with coolant guide
^ Item -1- : one external Torx screw, M10 x 60.
^ Item -2- : two internal Torx screws, M6 x 70.
^ Item -3- : eight internal Torx screws, M6 x 20.
6. Remove old seals and clean sealing surfaces.
6.1. Remove upper seal -1-.
Upper seal
6.2. Cut through the seal between the oil pump and coolant pump at the connecting bars -arrows-.
Lower seal
Installing oil pump
Installing oil pump with coolant guide housing
1. Fit two new O-rings on the oil pump connection piece and coat lightly with Kluber Syntheso Glep.
2. Position new metal seals on crankcase.
Upper seal
Lower seal
3. Align hexagon driver on oil pump connection piece with the mounting in the intermediate shaft.
4. Pre-position oil pump with coolant guide and press oil pump connection piece into the fitting bore on the crankcase.
5. Screw on oil pump with coolant guide.
Overview of screws for oil pump with coolant guide
^ Item -1- : one external Torx screw, M10 x 60. -> Tightening torque: 45 Nm (33 ftlb.)
^ Item -2- : two internal Torx screws, M6 x 70. Coat thread with Loctite 574. -> Tightening torque: 10 Nm (7.5 ftlb.)
^ Item -3- : eight internal Torx screws, M6 x 20. -> Tightening torque: 10 Nm (7.5 ftlb.)
6. Fit chain tensioner 4-6 -1- with a new sealing ring. -> Tightening torque: 80 Nm (59 ftlb.)
Upper coolant guide, chain tensioner
7. Pull off locating pin on pulley or vibration balancer.
8. Fit two new plugs on cylinder head 1-3.
Subsequent work
Danger
Risk of engine falling down.
^ Danger of fatal injury, material damage.
-> Support the engine with the prescribed tool.
1. Install engine carrier.
2. Install catalytic converter.
3. Slide coolant hose -1- onto coolant guide housing, then position and close the spring band clamp -2-.
Coolant hose on bottom of housing
Information
To facilitate assembly of coolant pipes and hoses, smear with Kluberplus S06-100 assembly gel.
4. Clip in spring clamp -2- at the Henn coupling.
4.1. Check O-ring for damage and replace if necessary.
4.2. Connect coolant hose in the engine compartment on the right -3-.
Coolant hose in engine compartment on the right, vacuum line
5. Fit support for air-conditioning compressor -3- using two cheese head bolts -4-. -> Tightening torque: 23 Nm (17 ftlb.)
6. Fit housing for positive crankcase ventilation -1- on cylinder head 4-6. Screw in and tighten two M6 Torx screws -2-. -> Tightening torque: 10 Nm (7.5 ftlb.)
Positive crankcase ventilation housing for cylinder bank 4-6 on 3.8 l engine
Connection for positive crankcase ventilation on 3.6 l engine
7. Connect positive crankcase ventilation line to the housing on cylinder head 4-6.
8. Install air-conditioning compressor.
9. Fit drive belt.
10. Install air cleaner housing.
11. Fill in coolant.
12. Fill in engine oil.