Special tools and equipment required
Scheme 194
- Assembly tool T10118
- Drip trap V.A.G 1306
Removing
| CAUTION | Hot steam can escape when opening the cap on the expansion tank. Cover the filler cap with a cloth and open it carefully. |
- Open filler cap on coolant expansion tank.
- Remove screw -1- and remove cover over coolant expansion tank (arrow).
Note. Mark the rotation direction of the poly V-belt with chalk or a felt-tipped pen. If the belt runs in the opposite direction when it is reinstalled, breakage may result.
- To release tension of poly V-belt, screw an M8 x 40 bolt (arrow) into bore on tensioning element.
- Disconnect secondary air injection air hose at position marked with an arrow.
- Move air hose at bracket clear.
- Remove fasteners -1...3- and remove center sound insulation.
- Remove left sound insulation (arrows).
- Remove right sound insulation (arrows).
- Place drip tray V.A.G 1306 under engine.
Scheme 195
- Turn drain plug (arrow) on radiator counter-clockwise. If necessary, install drain hose to connection.
- In addition, remove lower coolant hose at After-run coolant pump -V51- (arrow) and drain remaining coolant.
- Remove cross piece (arrows).
- Unbolt pulley for power steering pump (counterhold with mandrel).
- Remove bolts securing power steering pump to bracket (arrows).
- Hang power steering pump on lock carrier with hydraulic hoses -1- and -2- attached.
- Disconnect electrical connector -1- at Secondary Air Injection (AIR) pump motor -V101-.
- Move wire clear.
- Remove bracket -2- for coolant hoses.
- Remove bracket -3- for secondary air pump air filter.
- Remove bolts -1- and -2- and remove secondary air pump with bracket -A-.
Scheme 196
- Disconnect electrical connector -1- at oil pressure switch using assembly tool T10118.
- Disconnect coolant hoses -2- and -3- at oil filter bracket.
- Unscrew bolts (arrows) and remove oil filter bracket.
Installing
Installation is performed in reverse order of removal. Note the following
Note. Replace seals.
- Install secondary air pump. Refer to «Secondary air injection pump, removing and installing»(ref-276269-S35561992282008010300000) .
- Install power steering pump
Refer to 48 STEERING
- Install cross piece.
Refer to 40 FRONT SUSPENSION
- Install poly V-belt. Refer to «Poly V-belt, removing and installing»(ref-276269-S17467268642008010300000) .
- Fill cooling system. Refer to «Cooling system, draining and filling»(ref-276269-S04050758062008010300000) .
Tightening torque
| Component | Nm |
|---|---|
| Oil filter bracket to cylinder block | 23 |
Scheme 197
1 - Input shaft for oil pump drive
2 - Oil pump housing
3 - 23 Nm
4 - Gears
- Checking backlash. Refer to «Checking backlash»(ref-276269-S04540747462008021500000)
- Checking axial clearance. Refer to «Checking axial clearance»(ref-276269-S05497335842008021500000)
5 - Oil pump cover
- With pressure relief valve
- Opening pressure: 5.3...5.7
- Clean strainer if dirty
6 - 8 Nm
- Install using locking fluid
7 - Oil pressure pipe
- Apply sealing paste at cylinder block and at oil pump housing
Refer to Parts catalog
8 - 10 Nm
9 - Oil seal
- Replace if damaged
Scheme 198
- Use a feeler gauge to measure.
- Wear limit (backlash): 0.20 mm
Scheme 199
- Use a feeler gauge and straightedge to measure.
- Wear limit (axial clearance): 0.10 mm
Scheme 200
Special tools and equipment required
- Oil pressure tester V.A.G 1342
- Adapter V.A.G 1342/14
- Voltage tester V.A.G 1527 B
- Adapter set V.A.G 1594 A
- Assembly tool T10118
Conditions
- Oil level OK
- Engine oil temperature approx. 80° C
- Message "OK" must light up in driver information display
Work sequence
- Remove bolt -1- and remove cover over coolant expansion tank (arrow).
- To release tension of poly V-belt, screw an M8 x 40 bolt (arrow) into bore on tensioning element.
Note. Mark the rotation direction of the poly V-belt with chalk or a felt-tipped pen. If the belt runs in the opposite direction when it is reinstalled, breakage may result.
- Disconnect secondary air hose at position marked with an arrow.
- Move air hose clear.
- Remove fasteners -1...3- and remove sound insulation.
- Remove left sound insulation (arrows).
- Remove right sound insulation (arrows).
- Remove cross piece (arrows).
- Unbolt pulley for power steering pump (counterhold with mandrel).
- Remove bolts securing power steering pump to bracket (arrows).
- Hang power steering pump on lock carrier with hydraulic hoses -1- and -2- attached.
- Disconnect electrical connector -1- at Secondary Air Injection (AIR) pump motor -V101-.
- Move wire clear.
- Remove bracket -2- for coolant hose.
- Remove bracket -3- for secondary air pump air filter.
- Remove bolts -1- and -2- and remove secondary air injection pump with bracket -A-.
Scheme 201
- Disconnect electrical connector (arrow) at oil pressure switch using assembly tool T10118.
- Unscrew oil pressure switch.
Scheme 202
- Connect oil pressure tester V.A.G 1342 with adapter V.A.G 1342/14 to bore for oil pressure switch.
- Screw oil pressure switch -2- into oil pressure tester V.A.G 1342.
Checking oil pressure switch
- Connect brown wire -1- of oil pressure tester to Ground (-).
- Connect voltage tester V.A.G 1527 B with test leads from adapter set V.A.G 1594 A to oil pressure switch and battery positive (+).
- LED must not light up
If the LED lights up
- Replace oil pressure switch.
- Install power steering pump
Refer to 48 STEERING
- Install poly V-belt. Refer to «Poly V-belt, removing and installing»(ref-276269-S17467268642008010300000)
Note. Observe oil pressure tester and LED while starting. Switching point of oil pressure switch may already be exceeded when starting.
- Start engine.
- Test lamp must light up at 1.2...1.6 bar
If the LED does not light up
- Replace oil pressure switch.
Checking oil pressure
- Install power steering pump
Refer to 48 STEERING
- Install poly V-belt. Refer to «Poly V-belt, removing and installing»(ref-276269-S17467268642008010300000) .
- Start engine.
- Minimum oil pressure at idling speed: 2.0 bar
- Minimum oil pressure at 2000 RPM: 3.0 bar
- Oil pressure at higher engine speeds: max. 7.0 bar
The pressure relief valve or oil pump is faulty if the specifications are not attained.
- Replace oil pump. Refer to «Oil pump, component overview»(ref-276269-S42746714842008010300000) .
Assembling
Assembly is performed in the reverse order. Note the following
- Install secondary air injection pump. Refer to «Secondary air injection pump, removing and installing»(ref-276269-S35561992282008010300000) .
- Install power steering pump
Refer to 48 STEERING
- Install cross piece.
Refer to 40 FRONT SUSPENSION
- Install poly V-belt. Refer to «Poly V-belt, removing and installing»(ref-276269-S17467268642008010300000) .