Table of contents: Removal 🠇 Installation 🠇
Removal
1. Disconnect the ground cable from the battery (see "Disconnecting the battery").
2. Drain the engine oil, then clean and install the oil drain plug, tightening it securely. If the engine is approaching its scheduled service date, when the oil and filter should be changed, it is recommended to remove the filter now and replace it with a new one. After assembly, you can fill the engine with fresh oil. For more information, please contact chapter 1B.
3. Fully apply the parking brake. Raise the front of the vehicle and support it securely (see "Lifting and installing the car on supports").
4. On models with air conditioning that have the compressor mounted on the side of the oil pan, remove the drive belt as described in chapter 1B. Unscrew the compressor mounting bolts, remove it and place it away from the pan. Tie the compressor to a suitable part of the vehicle to prevent excessive strain on the refrigerant lines. Do not disconnect the refrigerant lines from the compressor (refer to the warnings in chapter 3).
5. If necessary, disconnect the electrical connector of the oil level indicator sensor, which is screwed into the oil pan.
6. Gradually loosen and remove all oil pan mounting bolts. Since the tray mounting bolts vary in length, they should be removed in order and stored in the correct installation sequence. To ensure safety, insert the bolts into holes cut in a piece of cardboard and clearly marked. During installation, this will avoid the risk of incorrect bolt placement.
7. Open the joint by tapping the pallet with the palm of your hand. Then lower the tray and remove it from under the vehicle. If the tray cannot be removed (and this is quite possible), to separate the joint, you can use a spatula or similar tool, which should be carefully inserted between the oil pan and the block. Run a spatula around the perimeter of the joint, freeing the oil pan. Remove the gasket (if available) and throw it away; when installing, you should use a new one. While the oil pan is removed, take the opportunity to inspect the oil pickup/oil pump strainer for any signs of blockage or damage. If necessary, remove the pump as described in paragraph 15, and clean or replace the mesh filter.
8. Some engines have a large separator plate installed between the oil pan and the base of the cylinder block/crankcase. If this plate is present, remove the two mounting screws from diagonally opposite corners of the plate. Remove the plate from the base of the engine, making note of how it is installed.
Installation
9. Remove all traces of sealant/gasket material from the mating surfaces of the cylinder block/crankcase and oil pan, then wipe the oil pan and the inside of the engine with a clean rag.
10. If a spacer plate is present, remove all traces of sealant/gasket material from the plate and then apply a thin coat of suitable sealant to the top mating surface of the plate. Position the plate against the base of the cylinder block/crankcase and tighten the corresponding screws securely.
11. On engines where the oil pan is installed without a gasket, ensure that the oil pan mating surfaces are clean and dry, then apply a thin coat of a suitable sealant to the oil pan mating surface.
12. On engines where the oil pan is equipped with a gasket, ensure that all traces of the "old" gasket are removed and all mating surfaces of the oil pan are clean and dry. Install the new gasket onto the top surface of the oil pan, using a dab of grease to hold it in place.
13. Position the oil pan against the cylinder block/crankcase. Screw in the appropriate bolts, making sure that each one is screwed in according to its original position. Tighten the bolts evenly and gradually to the specified torque.
14. If necessary, align the air conditioning compressor with its supports on the oil pan and tighten the corresponding bolts. Tighten the compressor mounting bolts securely, then install the drive belt as described in chapter 1B.
15. Connect the electrical connector of the oil level sensor (if available).
16. Lower the vehicle and then fill the engine with oil as described in chapter 1B.