Figure 117. Location of the oil dipstick on a 2.3L engine (208D, 308D, 408D) |
Figure 118. Location of the oil dipstick (1) and oil filler cap (2) on a 2.9 L engine (212D, 313D, 412D) |
It is best to check the oil level every time you fill up. The oil dipstick, as you know, is located in front of the engine on the side. Figures 117 and 118 show the location of the dipstick on both engine types.
Checking the engine oil level is done as follows:
- park the car on a level surface;
- after stopping the engine, wait at least 5 minutes for the oil to drain into the crankcase. It is better to check the oil level before leaving on a still cold engine;
- remove the dipstick - be careful when the engine is hot! Wipe it with a lint-free cloth or paper towel. Insert it back until it stops, wait a bit and remove it again;
- you can determine the oil level using the scale on the dipstick. If it is between two divisions, everything is fine;
- if the level does not reach the lower mark or the oil level indicator light is on, you need to add oil.
The volume of oil between the lower and upper marks of the dipstick corresponds to 2 liters. Thus, if the oil level is in the lower third of the scale or the control lamp is on, it is convenient to use a one-liter canister for topping up. When adding fluid from a five-liter canister, use a funnel. Oil is poured through the filler neck in the engine block head cover.
With a calm driving style, the oil level may be in the lower third of the scale. When driving vigorously or towing a trailer, it is recommended to keep the oil level closer to the upper mark. The larger the volume, the better the oil cools the engine.
You must not add too much oil. The oil level should not exceed the MAX mark on the dipstick. Therefore, it is better not to try to fill the oil exactly to the upper mark. Excess oil is used up faster and contributes to excessive carbon formation.
Note: Oil dipsticks vary between engines and are not interchangeable. Therefore, if you need to replace the dipstick, pay attention to the engine type. The dipstick handles are color coded.
Can you mix oils?
Oil brands from different manufacturers can be mixed without any danger, this also applies to seasonal and all-season oil. Such compatibility without causing harmful consequences is a basic requirement of international standards. The specific characteristics of individual brands of oils may vary slightly when mixed, since each brand uses its own combination of additives. However, the main characteristics of the lubricant do not suffer.
Material based on data from the portal: mercedesman
An exception is some synthetic and semi-synthetic oils, which are also not listed as recommended for use by Mercedes. When mixed with the oil in the engine, an unsuitable combination may occur, which may cause engine damage.