Changing engine oil and oil filter (Mercedes-Benz G-Class W463)

General information

Warning! Prolonged skin contact with used engine oil is quite dangerous. Use a protective cream and wear gloves during this procedure. Change oil-soaked clothing immediately.

Note: Regular and frequent engine oil changes are the most important preventative maintenance procedure available to the amateur mechanic. Over time, oil is susceptible to dilution and contamination, leading to premature engine wear.

If necessary, engine oil can be pumped out using a special probe (can usually be borrowed at gas stations) through the guide tube of the measuring probe.

Attention! Never pour used oil down the drain!

It is advisable to attach a label to the engine after changing the oil indicating the type of oil added and the date the procedure was performed.

The use of oils of different types has an adverse effect on engine performance. Mixing oils of different brands is also not allowed under any circumstances. In some situations (in particular, in the off-season) it is permissible to mix engine oils of different viscosity, provided that they match in type and brand.

Necessary tool

• Inspection pit/overpass/hydraulic lift (if the oil is not pumped out from the top);
• Socket head for unscrewing the drain plug;
• Special attachment for unscrewing the filter cover (103 589 02 09 00);
• Drainage tank (if oil is not sucked out through the dipstick guide tube) with a volume of at least 6 liters.

Necessary spare parts and consumables:

• Aluminum or copper sealing washer for drain plug (if the oil is not pumped out from the top), - sometimes supplied with a replacement filter;
• Replacement filter element cartridge;
• The required amount of Mercedes-Benz approved engine oil.

Draining engine oil

1. Warm up the engine to normal operating temperature.

2. Jack up the car and place it horizontally on supports.

3. Place a container under the oil pan to collect the used oil.

4. Remove the drain plug from the oil pan (see contrast illustration a) and drain the oil completely - if the drain plug does not fit at the lowest point of the engine oil pan, you should use a special device for pumping out oil (see contrast illustration b).

a.

b.

Caution! If the used oil contains a large amount of metal shavings and wear products, this indicates the presence of scoring, for example, in the crankshaft bearings and connecting rod bearings. To avoid damage after the repair, it is necessary to thoroughly clean the oil channels and hoses. Additionally, it is necessary, if any, to replace the oil radiator.

5. Wait until the oil stops flowing out of the drain hole, then screw the plug back in, having first replaced its sealing washer - make sure that the plug is tightened with the required force - excessively tight tightening of the drain plug is associated with the risk of damaging the tightness of its fit.

6. Lower the car onto its wheels.

Replacing the oil filter

Petrol models

1. Removing the working element of the oil filter (petrol models).



2. The cover of the cartridge oil filter is placed on top of the engine, in the left front corner of the latter (see illustration Engine compartment of petrol models (using the G55 AMG as an example)).

3. Using a special attachment (103 589 02 09 00) loosen the threaded cover (2) of the oil filter housing (5) and remove it together with the working element (4).

4. Using short blows on the central rod, knock the working element out of the lid into the prepared drain container.

5. Replace the sealing ring (3) of the cover (2).

6. Insert the replaceable working element (4) into the casing (5) of the assembly, then put the cover in place and tighten it using a special attachment (see paragraph 3).

Diesel models

1. The corresponding illustrative material is presented in the accompanying illustrations





2. The procedure is the same as described above for gasoline engines. On models equipped with a 612 series engine, the cylinder head trim panel/air cleaner assembly must first be removed to gain access to the filter.

Filling with fresh engine oil

Caution! When starting the turbodiesel for the first time after changing the oil, make sure that the engine first runs at idle speed until the oil pressure indicator lamp goes out. Increasing the engine speed when the indicator lamp is on is associated with the risk of turbocharger failure!

1. Oil is added through a special filler neck equipped with a cap in the cylinder head cover (see illustrations Engine compartment of petrol models (using the G55 AMG as an example), Engine bay of diesel models G270 CDI and Engine bay of diesel models G400 CDI).

2. When changing the oil, use new oil of the same type and, if possible, the same brand as that drained from the engine. Use a funnel to minimize splashing. Each time you change the oil, attach a label to the engine indicating the type and brand of oil added, as well as the date the change was made.

3. At the first stage, fill the engine with approximately 0.5 liters of oil less than indicated in Specifications, then warm up the engine and, after a few minutes, check the level - if necessary, make the appropriate adjustments, bringing the level to the MAX mark on the blade of the dipstick.

Note: Excess oil must be pumped out of the engine to avoid the risk of damage to engine seals and failure of the catalytic converter.

4. After a test drive, check the tightness of the drain plug and oil filter cover.

5. After approximately 2 minutes from stopping the engine, check the oil level again and make the appropriate adjustments if necessary.