Replacing engine oil and the filter is routine maintenance every 1 year or 10,000 miles by the Mercedes-Benz maintenance booklet requires. There are two ways to discharge the used oil, extraction, or drain. In the Mercedes-Benz maintenance manual (WIS): For the M278 engine, the used oil is discharged by the extracting unit, in order to improve the work efficiency of the workshop. For the AMG engine M157, the same structure as M278 is required to drain the oil from the oil pan. After comparing the two methods, there can be filled with 8.5 liters of new engine oil as required by the booklet with drain used oil. For extraction of used oil, only 7.5 liters of new engine oil can be filled. I think this is why the M157 engine requires drain used oil from the oil pan. I chose to drain the used oil, even though it will take a little longer.
Engine Oil: Mobil 1 Synthetic, 0w-40，8.5 liters
Hengst (A 278 180 00 09) (after engine serial number 30-021065)
Crush Washer: 14mm (N 007603 014106)
Step 1 Left Vehicle
Lift Vehicle with floor jack and jack stands or two-post lift
2.1 Jack front vehicle at front central jack point;
2.2 Support vehicle at front side jack points with jack stands;
2.3 Jack rear vehicle at rear central jack point, if w/o rear central jack point, jack at the bottom of differential shell which fixed at subframe carrier directly;
2.4 Support vehicle at rear side jack points with jack stands.
Step 2 Recording the Maintenance Information to OBD
Connect MB diagnosis unit
2.1 Connect the connector of OBD at the vehicle;
2.2 Connect the connector of LAN at the computer;
2.3 Start the XENTRY;
2.4 Confirm the performance of maintenance.
Step 5 Open the Engine Hood
No necessary to verticle the engine hood
5.1 Pull the lever on the left side of the footwell to unlock the engine hood. Engine hood jumps open; lift engine hood slightly if necessary;
5.2 Raise the handle and open the engine hood. Windshield wiper arms must not be folded forward.