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W123 (1976-1985) W124 (1984-1995) W210 (1996-2002)
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Maintenance every 9,000 km (Mercedes-Benz E-Class W124)

0
Contents: Oil and oil filter change ↡ 6-cylinder SOHC engines ↡ 6-cylinder DOHC engines ↡ 4-cylinder engines ↡

Oil and oil filter change



Periodic oil and oil filter changes are the most important preventative maintenance procedure. As engine oil ages, it becomes thin and contaminated, leading to premature engine wear.

Before starting this procedure, gather all the necessary tools and materials together. It is necessary that the engine is warm so that the oil flows better along with the bulk of the contaminants.

Place the car on lifts or over an inspection pit. It is desirable that the car be positioned so that the oil drain plug is at the lowest point. If necessary, remove the splash guard from under the engine.

The oil filter housing is located in the left rear corner of the engine compartment behind the exhaust manifold.

6-cylinder SOHC engines



Places where a thin layer of engine oil is applied to the rubber seal of the new oil filter



Places where a thin layer of engine oil is applied to the rubber seal of the new oil filter


Location of Engine Oil Drain Plug on 6-Cylinder SOHC Engine



Location of Engine Oil Drain Plug on 6-Cylinder SOHC Engine


1. Use a special tool to loosen the oil filter, then unscrew it by hand.



2. Wipe away all traces of oil and dirt around the filter mounting area. Check to see if the rubber seal is still on the cylinder block. If it is, remove it.

3. Apply a thin layer of engine oil to the rubber seal of the new oil filter and screw the filter on by hand without using any tools (see Fig. Places to apply a thin layer of engine oil to the rubber seal of the new oil filter).

4. Loosen the drain plug about half a turn (see Fig. Location of Engine Oil Drain Plug on 6-Cylinder SOHC Engine). Place a container to catch the oil under the drain plug and unscrew the plug completely. If necessary, apply pressure to the plug while unscrewing to prevent the oil from leaking prematurely. Remove the O-ring from the oil drain plug.

5. Once the oil has drained completely, wipe off any debris around the drain hole with a rag and screw the plug back on securely.

6. Place the vehicle on a level, horizontal surface.

7. Remove the oil dipstick and remove the oil filler cap.

8. Fill the engine with oil using the appropriate grade of oil. Fill half the required amount of oil and wait a few minutes for the oil to drain into the pan. Then continue pouring oil in small portions until the oil level reaches the minimum level on the dipstick. Adding about 1 more liter will raise the oil level to the maximum on the dipstick. Close the filler cap.

9. Start the engine and let it run for a few minutes. Check for oil leaks around the filter and the drain plug on the pan. Note that the oil pressure light may stay on for a few seconds as the oil fills all the passages and oil reservoirs in the engine.



10. Turn off the engine and wait a few minutes for the oil to drain into the pan. Check the oil level and top up if necessary.

6-cylinder DOHC engines



Removal the cover with the filter element from the oil filter housing on a 6-cylinder DOHC engine



Removal the cover with the filter element from the oil filter housing on a 6-cylinder DOHC engine


Removal the oil drain plug on a 6-cylinder DOHC engine



Removal the oil drain plug on a 6-cylinder DOHC engine


Installing a new O-ring on the oil filter cover of a 6-cylinder DOHC engine



Installing a new O-ring on the oil filter cover of a 6-cylinder DOHC engine


Installing a new filter element into the oil filter housing cover of a 6-cylinder DOHC engine



Installing a new filter element into the oil filter housing cover of a 6-cylinder DOHC engine


1. Unscrew the cap from the oil filter housing.



2. Wait until the oil drains from the oil filter housing, then remove the cover together with the filter element (see Fig. Removing the cover with the filter element from the oil filter housing on a 6-cylinder DOHC engine).

3. Remove the filter element from the cover and remove the O-ring.

4. Loosen the drain plug about half a turn. Place a container to collect the oil under the drain plug and unscrew the plug completely. If necessary, apply pressure to the plug while unscrewing to prevent premature oil leakage. Remove the O-ring from the oil drain plug.

5. Once the oil has drained completely, wipe off any debris around the drain hole with a rag and screw the plug back on securely.

6. Place the vehicle on a level, horizontal surface.

7. Wipe away all traces of oil and dirt from the oil filter cap and install a new O-ring on the cap (see Fig. Installing a New O-Ring on the Oil Filter Cover of a 6-Cylinder DOHC Engine).

8. Install a new filter element into the oil filter housing cover (see Fig. Installing a new filter element into the oil filter housing cover of a 6-cylinder DOHC engine).

9. Install the cover with the filter element onto the oil filter housing and tighten the cover securely.

10. Remove the oil dipstick and remove the oil filler cap.

11. Fill the engine with oil using the appropriate grade of oil. Fill half the required amount of oil and wait a few minutes for the oil to drain into the pan. Then continue pouring oil in small portions until the oil level reaches the minimum level on the dipstick. Adding about 1 more liter will raise the oil level to the maximum on the dipstick. Close the filler cap.



12. Start the engine and let it run for a few minutes. Check for oil leaks around the filter and the drain plug on the pan. Note that the oil pressure light may stay on for a few seconds as the oil fills all the passages and oil reservoirs in the engine.

13. Turn off the engine and wait a few minutes for the oil to drain into the pan. Check the oil level and top up if necessary.

4-cylinder engines



Models with replaceable filter element



Caution: When replacing the filter element, it is necessary to use new sealing rings for the clamping bolt and the roof of the air filter housing.


Location of oil filter housing cover tie bolt on 4-cylinder models with replaceable filter element



Location of oil filter housing cover tie bolt on 4-cylinder models with replaceable filter element


Removal the filter element from the oil filter housing on 4-cylinder engines



Removal the filter element from the oil filter housing on 4-cylinder engines


O-ring seals



O-ring seals


Install new O-rings on the oil filter housing cover (1) and the tie bolt (2).



1. Unscrew the clamping bolt and remove it together with the oil filter housing cover. Remove the sealing rings from the cover and clamping bolt (see Fig. Location of oil filter housing cover tie bolt on 4-cylinder models with replaceable filter element).

2. Remove the filter element from the oil filter housing (see Fig. Removing the filter element from the oil filter housing on 4-cylinder engines).

3. Loosen the drain plug about half a turn. Place a container to collect the oil under the drain plug and unscrew the plug completely. If necessary, apply pressure to the plug while unscrewing to prevent premature oil leakage. Remove the O-ring from the oil drain plug.

4. Once the oil has drained completely, wipe off any debris around the drain hole with a rag and screw the plug back on securely.

5. Place the vehicle on a level, horizontal surface.

6. Wipe the oil filter housing and cover and install a new filter element into the housing. Install new O-rings on the cover and clamp bolt (see fig. O-ring seals).

7. Install the cover onto the oil filter housing and secure it with the bolt, tightening it to the required torque.

8. Remove the oil dipstick and remove the oil filler cap.

Original material on the website MERCEDESMAN.ru

9. Fill the engine with oil using the appropriate grade of oil. Fill half the required amount of oil and wait a few minutes for the oil to drain into the pan. Then continue pouring oil in small portions until the oil level reaches the minimum level on the dipstick. Adding about 1 more liter will raise the oil level to the maximum on the dipstick. Close the filler cap.



10. Start the engine and let it run for a few minutes. Check for oil leaks around the filter and the drain plug on the pan. Note that the oil pressure light may stay on for a few seconds as the oil fills all the passages and oil reservoirs in the engine.

11. Turn off the engine and wait a few minutes for the oil to drain into the pan. Check the oil level and top up if necessary.

Models with replaceable filter



Oil filter location on 4-cylinder engines with replaceable oil filter

Oil filter location on 4-cylinder engines with replaceable oil filter


1. Use a special tool to loosen the oil filter, then unscrew it by hand (see Fig. Location of oil filter on 4-cylinder engines with replaceable oil filter).

2. Wipe away all traces of oil and dirt around the filter mounting area. Check to see if the rubber seal is still on the cylinder block. If it is, remove it.

3. Apply a thin layer of engine oil to the rubber seal of the new oil filter and screw the filter on by hand without using any tools.

4. Loosen the drain plug about half a turn. Place a container to collect the oil under the drain plug and unscrew the plug completely. If necessary, apply pressure to the plug while unscrewing to prevent premature oil leakage. Remove the O-ring from the oil drain plug.



5. Once the oil has drained completely, wipe off any debris around the drain hole with a rag and screw the plug back on securely.

6. Place the vehicle on a level, horizontal surface.

7. Remove the oil dipstick and remove the oil filler cap.

8. Fill the engine with oil using the appropriate grade of oil. Fill half the required amount of oil and wait a few minutes for the oil to drain into the pan. Then continue pouring oil in small portions until the oil level reaches the minimum level on the dipstick. Adding about 1 more liter will raise the oil level to the maximum on the dipstick. Close the filler cap.

9. Start the engine and let it run for a few minutes. Check for oil leaks around the filter and the drain plug on the pan. Note that the oil pressure light may stay on for a few seconds as the oil fills all the passages and oil reservoirs in the engine.

10. Turn off the engine and wait a few minutes for the oil to drain into the pan. Check the oil level and top up if necessary.
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The article has been verified: Levin Kirill Glebovich
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Primary and secondary maintenance actions
Maintenance Specifications
Engine bay and maintenance intervals
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