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Replace Exhaust Manifold Opel Meriva A

DOHC Petrol Engine 4 illustrations ~387 words

Remove

Important. In vehicles with ESP - the steering angle sensor loses its basic settings every time the battery is disconnected and has to be recalibrated.

  1. 1. Open bonnet
  2. 2. Disconnect battery • Ground connection from negative terminal – Slacken nut
  3. 3. Remove mixture regulator lambda sensor (1) using KM-6129 • Disconnect wiring harness connector (3) • Unclip wiring harness from bracket (2)
  1. 4. Remove oil dipstick guide tube (2) • Unscrew bolt (3)
  2. 5. Detach exhaust manifold • Unscrew 9x nuts (1) – Detach from outside to inside
  1. 6. Raise vehicle by its full height

Important. Angular dislocations of the flexpipe as small as 5 to 10 degrees offset from the intended installation position can already cause damage and subsequent complete failure of the flexpipe

  1. 7. Detach front exhaust pipe (1) from catalytic converter • Disconnect oxygen sensor catalytic converter control wiring harness plug • Unscrew 3x nut • Suspend front exhaust pipe from underside of vehicle with wire
  1. 8. Detach exhaust manifold from bracket • Unscrew 2x bolts (1) • Remove exhaust manifold and gasket from below

Install

  1. 9. Lower vehicle by its full height
  2. 10. Clean sealing surfaces
  3. 11. Attach exhaust manifold to cylinder head • Use new gasket and nuts • Tighten 9x nuts by hand – Apply assembly paste
  4. 12. Raise vehicle by its full height
  5. 13. Attach exhaust manifold to bracket • Tighten 2x bolts 8 Nm
  6. 14. Attach front exhaust pipe • Detach exhaust pipe from underbody • Use new seal • Insert 2x in damper ring • Tighten 3x nuts 20 Nm – Apply assembly paste • Connect wiring harness plug for catalytic converter control oxygen sensor
  7. 15. Lower vehicle by its full height
  8. 16. Tighten exhaust manifold • Tighten 9x nuts 20 Nm (2 passes) – Tighten from inside to outside
  9. 17. Fit mixture regulator lambda sensor • Tighten with KM-6129 40 Nm • Coat thread with assembly paste • Fix wiring harness plug • Attach wiring harness
  10. 18. Install dipstick guide tube • Use new gasket – Coat with silicone grease • Tighten bolt
  11. 19. Connect ground cable to battery • Tighten nut
  12. 20. Program volatile memory
  13. 21. In vehicles with ESP: Calibrate steering angle sensor • Turn on ignition

Note. Turn steering wheel once from right stop to left stop

  1. 22. Close bonnet

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