Genuine Volvo V50 Exhaust Manifold

Volvo V50 Exhaust Manifold Parts and Q&A

• Exhaust Manifold
  8250520
  Q: How to replace the Exhaust Manifold and catalytic converter on Volvo V50?

  A:

  For the 1.8 and 2.0 litre models, start by disconnecting the battery negative lead and making sure that the steering wheel is straight ahead and the steering lock is on. If the manifold gasket is the only part to be renewed, then skip the next step. Under the facia, pull up the plastic boot, mark the alignment between the steering column universal joint and steering rack pinion, then undo the pinch-bolt and pull the joint upwards. Remove the plastic cover on top of the engine, disconnect the front and rear oxygen sensor wiring plugs and undo the four bolts to remove the heat shield from the manifold. Next, undo the nuts holding the manifold to the cylinder head, removing the old nuts. Raise the front of the vehicle on axle stands, remove the two bolts holding the mounting bracket to the catalytic converter, and remove the SIPS crossmember. Disconnect the exhaust pipe from the manifold/catalytic converter, disconnect the catalytic converter from the rubber mountings and pull the manifold away from the cylinder head, discarding the gasket if not renewing it. Remove the lower torque rod and mounting bracket, make alignment marks on the front subframe and lower it slightly to maneuver the manifold/catalytic converter out. For refitting, transfer the oxygen sensors to the new manifold/catalytic converter if applicable, fit a new gasket and maneuver the assembly into place, finger tightening the new mounting nuts. Reconnect the exhaust pipe, re-install the SIPS crossmember and tighten the mounting brackets bolts. Carefully lift the front subframe in line with the marks, refitting the subframe mounting bolts to the specified torque and then the lower torque rod and mounting bracket. Finally, tighten the nuts that hold the manifold to the cylinder head to complete the process. For the 2.4 litre ones, first undo the five bolts holding the heat shield to the exhaust manifold until it is loose. Undo the nuts holding the manifold to the cylinder head, disconnect the front oxygen sensor wiring plug, and get the front of the car up on axle stands. Remove the SIPS crossmember, which loosens the rear oxygen sensor wiring harness, then disconnect the rear oxygen sensor wiring plug and undo the nuts holding the exhaust manifold to the catalytic converter. After unhooking the rubber mountings, remove the catalytic converter. If you are only renewing the gasket, pull the manifold backwards and dispose of the gasket, otherwise remove the lower torque rod and mounting bracket and lower the exhaust manifold from the vehicle. For refitting the steps include making sure the mating faces are clean, installing new gaskets, applying anti-seize grease to the manifold studs, positioning the heat shield, fitting and tightening the manifold and nuts to the indicated torque, then securely tightening the bolts of the heat shield, proceeding in reverse order of removal.