Pressure release valve
(Oil pump removed)
Scheme 736
- Loosen the screw and lift the spring and valve. Use the 83 91 401 Magnetic tool
Scheme 737
- Fit the valve and spring and tighten the bolt.
Scheme 738
Scheme 739
Scheme 740
Scheme 741
- Raise the car.
- Remove the lower front cover.
- Insert two «83 95 238»(ref-212208-S14859113752005122300000) Wedges, between the oil sump and subframe and between the gearbox and subframe.
- Lower the car.
- Remove the mass air flow sensor with hose.
- Detach the power steering hose from the holder.
- Remove the right-hand engine attachment with bracket and engine mount.
- Undo the retaining bolts from the coolant pump pulley and power steering pump pulley
- Release the multigroove belt from tension.
- Remove the coolant pump pulley and power steering pump pulley.
- Remove the belt tensioner and generator air intake.
- Remove the timing cover.
- Loosen the screw and lift the spring and valve. Use the 83 91 401 Magnetic tool
Scheme 742
Scheme 743
Scheme 744
Scheme 745
- Position the spring and piston and tighten the bolt with a new sealing ring.
- Fit the timing cover. Tightening torque: 8 Nm (6 lbf ft)
- Fit the belt tensioner and the generator air intake.
- Fit the coolant pump pulley and the power steering pump pulley. Use Loctite, part No. 74 96 292. Do not tighten the bolts.
- Fit the multigroove belt.
- Tighten the retaining bolts on the pulleys. Tightening torque: Belt pulley/coolant pump: 8 Nm (6 lbf ft) Belt pulley/power steering pump: 20 Nm (15 lbf ft)
- Fit the right-hand engine attachment with bracket and engine mount.
- Fit the power steering hose in the holder
- Fit the mass air flow sensor with hose.
- Raise the car.
- Lower the engine by carefully removing the wedges.
- Fit the lower front cover.
- Lower the car.
Scheme 746
- Raise the car and drain the engine oil.
- Remove the cover.
- Cut threads, using an M10 (step 3) screw tap, in the end plate. Screw in an M10 bolt and pull out the bypass valve. IMPORTANT: Make sure that no metal cuttings are left inside.
Scheme 747
- Oil the bypass valve and tap it home. Use a phi 15 mm drift.
- Fit the cover with a new seal.
- Lower the car and fill up with motor oil.
- Start the engine and check for leakage.