Contents: Engines Z10XE(P)/Z12XE/Z14XE(P) ⬇ Engines Z16XE/Z16SE/Z18XE (with air…⬇ Z13DT Engine (with air conditioning) ⬇ Y17DT/Y17DTL Engines ⬇ Z17DTH Engine (with air conditioning) ⬇
Engines Z10XE(P)/Z12XE/Z14XE(P)
Note: The generator removal/installation procedure is described below using the Corsa-C models as an example. On Meriva models, these operations are performed in a similar manner.
13. Disconnect the cable from the negative terminal of the battery (see Section 8).
14. Raise and support the front of the car on stands. On Corsa-Eco models, remove the engine guard (see Chapter 2).
15. Remove the multi-rib belt cover.
16. Loosen the 2 mounting nuts and disconnect the supply wires from the generator (see accompanying illustration).
10.16. Nuts for fastening the generator supply wiring to the "B+" terminal (2) and the "D+" terminal (3): 1. Wiring harness
On models without air conditioning:
17. Loosen the tension of the multi-rib belt (see Chapter 2) and remove the belt from the generator drive pulley.
Note: When squeezing the tensioner, it is necessary to fix its spring in the compressed position using the KM-955-2 device (see accompanying illustration).
10.17. Press the tensioner (3) by the central bolt (4) of the roller and fix it using the special device KM-955-2 (engines Z10XE(P)/Z12XE/Z14XE(P) without K/V): 2. Lower bolt of the tensioner fastening
18. Remove the lower bolt of the multi-rib belt tensioner (see Chapter 2), disconnect the lambda probe connector and cut the wiring harness clamp.
19. Loosen 2 nuts, unscrew 2 bolts (see accompanying illustration), remove the generator and carefully pull it downwards from the engine compartment.
10.19. Generator mounting bolts (1) (Z10XE(P)/Z12XE/Z14XE(P) engines)
On models with air conditioning:
20. Loosen the tension of the multi-rib belt (see Chapter 2) and remove the belt from the generator drive pulley. Press the multi-rib belt tensioner again and remove the KM-6130 device.
21. Remove the upper and lower tensioner bolts and remove the tensioner.
Caution: After removal, the tensioner must be in a vertical position (the arrow on the device points upwards), otherwise the shock absorber fluid may leak out and the tensioner may fail!
22. Loosen the 2 generator mounting nuts and remove the lambda probe connector holder.
23. Remove 2 bolts (see illustration 10.19), remove the generator and carefully pull it downwards from the engine compartment.
24. Installation is carried out in the reverse order of removal.
Engines Z16XE/Z16SE/Z18XE (with air conditioning)
25. Disconnect the cable from the negative terminal of the battery (see Section 8), remove the multi-rib belt (see Chapter 2).
26. Lower the car onto its wheels, remove the engine cover (see Chapter 2) and the air cleaner housing (see Chapter 4).
27. On 1.6L engines, disconnect the coolant temperature sensor connector and separate the air intake duct from the cylinder head. Then disconnect the throttle body assembly preheating system return hose and the crankcase ventilation system hose.
28. Disconnect the wiring harness holder and hose from the generator support bracket.
29. On engines with a working volume of 1.6 l, loosen the generator support bracket mounting nut.
30. On models with Z18XE engine, loosen the nut and disconnect the ground cable (see accompanying illustration).
10.30. Generator support bracket: 1. Ground cable; 2. Fastening nut; 3. Hairpin; 4, 5. Mounting bolts
31. Remove the stud and 2 bolts securing the generator support bracket (see illustration 10.30), remove the bracket.
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32. Raise and support the front of the vehicle on stands.
33. On models with the Z18XE engine, press the multi-rib belt tensioner, fix it with the KM-6130 device. Unscrew the central fastening bolt and remove the tensioner.
34. Disconnect the electrical wiring connector (see accompanying illustration) engine oil pressure sensor, remove the lambda probe.
10.34. Removing the generator (using the Z18XE engine as an example): 1. Upper mounting bolts; 2. Fastening nut; 3. Engine oil pressure sensor connector; 4. Lambda probe
35. Disconnect the fuel and brake lines from the holders.
36. Remove the 2 upper generator bracket mounting bolts and loosen the mounting nut (see illustration 10.34).
37. Unscrew the bolt and remove the generator bracket.
38. Pull out the generator mounting bolt, loosen the 2 mounting nuts and disconnect the generator supply wiring from the "B+" and "D+" terminals.
39. Remove the generator from the engine compartment through the wheel arch.
40. Installation is carried out in the reverse order of removal.
Z13DT Engine (with air conditioning)
41. Disconnect the cable from the negative terminal of the battery (see Section 8), and remove the air cleaner housing (see Chapter 4).
42. Remove the upper generator mounting bolt (see accompanying illustration).
10.42. The arrow indicates the upper generator mounting bolt (z13DT engine)
43. Raise and support the front of the vehicle and remove the multi-rib belt (see Chapter 2).
44. Loosen the 2 fastening nuts and disconnect the generator supply wiring from the terminals "B+" and "D+".
45. Unscrew the 2 mounting bolts (see accompanying illustration) and remove the generator.
10.45. Lower generator mounting bolts (1) (z13DT engine)
Y17DT/Y17DTL Engines
Note: On these models, the vacuum pump is mounted on the generator and driven by its shaft.
Without air conditioning
46. Disconnect the cable from the negative terminal of the battery (see Section 8).
47. Disconnect the hoses from the vacuum pump (see accompanying illustration).
10.47. Supply lines from the back side of the generator (y17DT/Y17DTL engines without CV): 1. Terminal connector "0+"; 2. Nut for fastening the wire to the "B+" terminal; 3. Vacuum pump hoses; 4. Hollow bolt
48. Place a container under the vacuum pump and unscrew the hollow bolt (see illustration 10.47) and separate the oil lines from the vacuum pump.
49. Separate the electrical wiring from the generator (see illustration 10.47).
50. Raise and place the front of the vehicle on stands and remove the multi-rib belt (see Chapter 2).
51. Separate the return oil hose from the vacuum pump, loosen the 2 nuts (see accompanying illustration) and remove the generator. If necessary, unscrew the 3 bolts and remove the vacuum pump from the generator.
10.51. Generator mounting nuts (1) (y17DT/Y17DTL engines without CV)
52. Installation is performed in the reverse order of removal. If the vacuum pump was removed, replace its sealing gasket. Do not forget to replace the oil line sealing rings.
With air conditioning
Note: On these models, to remove the generator, you will need to open the refrigerant circuit of the air conditioning system - contact a service station that has equipment specially designed for this purpose and trained personnel.
53. Disconnect the cable from the negative terminal of the battery (see Section 8).
54. Remove refrigerant from the A/C system - contact a specialist.
55. Remove the air cleaner housing (see Chapter 4).
56. Release the brake booster vacuum hose from the five holders and move it to the side.
57.. Loosen the 2 clamps and remove the boost hose, then remove the center boost pipe.
58. Remove the front bumper cover (see Chapter 11).
59. Loosen the clamp and disconnect the lower boost hose from the intercooler.
60. Disconnect the A/C system line and move it to the side.
61. Further removal is carried out as on models without air conditioning.
62. Installation is carried out in the reverse order of removal.
Z17DTH Engine (with air conditioning)
Note: On these models, to remove the generator, you will need to open the refrigerant circuit of the air conditioning system - contact a service station that has equipment specially designed for this purpose and trained personnel.
Note: On these models, the vacuum pump is mounted on the generator and driven by its shaft.
63. Disconnect the cable from the negative terminal of the battery (see Section 8).
64. Remove refrigerant from the A/C system - contact specialists.
65. Raise and support the front of the vehicle and remove the multi-rib belt (see Chapter 2).
66. Place a container under the vacuum pump and unscrew the hollow bolt (see accompanying illustration) and separate the oil lines from the vacuum pump.
10.66. The vacuum pump is mounted on the back side of the generator (z17DTH engines): 1. Wire to terminal "0+"; 2. Wire to terminal "B+"; 3. Brake booster vacuum hose; 4. Hollow bolt; 5. Oil drain hose
67. Disconnect the oil level sensor connector. Disconnect the brake booster vacuum hose from the vacuum pump (see illustration 10.66)
68. Separate the electrical wiring from the generator (see illustration 10.66).
69. Unscrew the upper generator mounting bolt, loosen the lower nut, remove the generator from the holder and remove the bolt.
70. Remove the mounting bolt and disconnect the A/C line. Remove the generator from the engine compartment.
71. Installation is performed in the reverse order of removal. Do not forget to replace all removed gaskets.
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