Materials required for changing automatic transmission oil in Mercedes S500 4matic:
* New automatic transmission oil (approximately 7 liters)
* New automatic transmission oil filter
* New automatic transmission pan o-ring
* Copper washer for automatic transmission drain plug
* Container for draining used oil
* Funnel for filling new oil
* 17 mm hex key
* Torque wrench
* OBD-II scanner
Procedure for changing automatic transmission oil:
1. Preparation:
* Place the car on a flat surface.
* Stop the engine and wait until it cools down.
* Place a container for draining used oil under the automatic transmission pan.
2. Draining old oil:
* Locate the automatic transmission drain plug (usually located at the bottom of the automatic transmission pan).
* Carefully unscrew the drain plug using a 17mm hex key. Be careful as the oil may be hot.
* Allow the used oil to drain completely into the container.
3. Replacing the oil filter:
* Remove the automatic transmission pan by unscrewing the mounting bolts.
* Identify and remove the old oil filter.
* Install the new oil filter and tighten it with a torque wrench to the required torque (specified in the vehicle owner’s manual).
4. Installing the automatic transmission pan:
* Install a new sealing ring on the automatic transmission pan.
* Install the automatic transmission pan onto the transmission and tighten the bolts with a torque wrench.
5. Filling with new oil:
* Locate the automatic transmission filler plug (usually located on the side of the transmission).
* Clean the filler plug and install a new copper washer.
* Using a funnel, fill the automatic transmission with new oil in the amount specified in the vehicle’s operating manual.
6. Checking the oil level:
*Connect the OBD-II scanner to the car.
* Start the engine and warm it up to operating temperature.
* Use an OBD-II scanner to check the automatic transmission oil level.
*Add oil if necessary to reach the desired level.
7. Resetting the oil change counter:
*Connect the OBD-II scanner to the car.
* Use a scanner to reset the automatic transmission oil change counter.
8. Testing:
* Start the engine and switch to different automatic transmission modes.
* Make sure the gearbox operates smoothly and without any slipping or hesitation.
Note: Consult your vehicle’s owner’s manual for specific service instructions and requirements as they may vary by model and year.