2023 Mercedes E-CLASS Engine Compartment User Manual

2023 Mercedes E-CLASS Engine Compartment User Manual

This tutorial will show the 2023 Mercedes E-Class engine compartment’s superior engineering, efficient design, and high-performance components for a powerful and smooth ride. Learn about this premium sedan’s heart.

2023 Mercedes Benz E-Class Specs, Price, Features, Mileage (Brochure)

Engine Compartment

Opening and closing the hood
Risk of accident due to driving with the hood unlocked

The hood may open and block your view.

• Never release the hood when driving.
• Before every trip, ensure that the hood is locked.

WARNING
Risk of accident and injury when opening and closing the hood The hood may suddenly drop into the end position. There is a risk of injury for anyone in the hood’s range of movement.

• Do not open or close the hood if there is a person in the hood’s range of movement.

WARNING
Risk of burns when opening the hood. If you open the hood in the event of an over-heated engine or fire in the engine compartment, the following situations may occur:

• You may come into contact with hot gases.
• You may come into contact with other escaping hot operating fluids.
• Before opening the hood, allow the engine to cool down.
• In the event of a fire in the engine compartment, keep the hood closed and call the fire service.

WARNING
Risk of injury due to moving parts Components in the engine compartment may continue to run or start unexpectedly even when the drive system is switched off.

Observe the following if you must open the hood:

• Switch off the vehicle.
• Never touch the danger zones surrounding moving components, e.g. the rotation area of the fan.
• Remove jewellery and watches.
• Keep items of clothing and hair away from moving parts.

WARNING
Risk of injury from touching live components The ignition system and the fuel injection system operate with a high voltage. You could receive an electric shock.

• Never touch components of the ignition system or fuel injection system when the vehicle is switched on.

The live components include the following, for example:

• Ignition coils
• Fuel injectors
• Electric lines to the ignition coils and the fuel injectors

WARNING
Risk of burns from hot parts in the engine compartment
Certain parts in the engine compartment can be very hot, e.g. the engine, the cooler, and parts of the exhaust system.

• Allow the engine to cool down and only touch parts described in the following.

WARNING
Risk of injury from using the windshield wipers when the hood is open If the windshield wipers start moving when the hood is open, you could be trapped by the wiper linkage. Always switch off the windshield wipers and the vehicle first if you need to open the hood.

Opening the hood

• To release the hood, pull on handle 1.

• Push handle 2 of the hood catch upwards and lift the hood until it opens automatically.

Closing the hood

• Lower the hood to a height of around 8 in (20 cm) and then allow it to fall, applying a little force as you let it go.
• If the hood can still be lifted slightly, open the hood again and close it with a little more force until it engages correctly.

Engine oil
Checking the engine oil level using the oil dipstick

WARNING
Risk of burns from hot parts in the engine compartment

Certain parts in the engine compartment can be very hot, e.g. the engine, the cooler and parts of the exhaust system.

• Allow the engine to cool down and only touch parts described in the following.

Requirements

• The engine has an oil dipstick. If not, the engine oil level can be checked only with the on-board computer.

Depending on the engine, the oil dipstick may be installed in the engine compartment in different locations. The waiting time before checking the oil level when the engine is at normal operating temperature is five minutes.

• Park the vehicle on a level surface
• Pull oil dipstick 1 out and wipe off.
• Slowly slide oil dipstick 1 into the guide tube as far as it will go and pull it out again after approximately three seconds.
• Oil level is correct: oil level is between 2 and 3.
• Oil level too low: oil level is at 3 or below.
• Oil level too high: oil level is above 2.
• If the oil level is too low, add 1.1 US qt (1 liter) of engine oil.
• If the oil level is too high, drain off excess engine oil. Consult a qualified specialist workshop.

Checking the engine oil level using the on-board computer

• The engine has been warmed up.
• The vehicle is parked on a level surface. R The engine is running at idle speed.
• The hood is closed.

The engine oil level is determined during driving. Determining the engine oil level can take up to 30 minutes with a normal driving style and even longer with an active driving style.

On-board computer:
4 Service 5 Engine Oil Level One of the following messages will appear on the instrument display:

• Measuring Engine Oil Level measurement of oil level is not yet possible.
• Repeat the request after a maximum of 30 minutes of driving.
• Engine Oil Level OK and the bar display for indicating the oil level on the instrument display is green and is between “min” and “max”: the oil level is correct.
• R Engine Oil Level Add 1,1 qts. and the bar display for indicating the oil level on the instrument display is orange and is below “min”:
• Add 1.1 US qt (1 l) of engine oil. Reduce Engine Oil Level and the bar display for indicating the oil level on the instrument display is orange and is above “max”:
• Drain off any excess engine oil that has been added. To do so, consult a qualified specialist workshop.
• For Engine Oil Level Switch Ignition On
  Switch on the vehicle to check the engine oil level.
• Engine Oil Level System Inoperative: The oil level sensor is defective or not connected.
• Consult a qualified specialist workshop.
• Engine Oil Level System Currently Unavail.

Close the hood.

Adding engine oil
Risk of burns from hot parts in the engine compartment  Certain parts in the engine compartment can be very hot, e.g. the engine, the cooler and parts of the exhaust system.

• Allow the engine to cool down and only touch parts described in the following.

WARNING
Risk of fire and injury from engine oil If engine oil comes into contact with hot parts in the engine compartment, it may ignite.

• Make sure that no engine oil is spilt next to the filler opening.
• Allow the engine to cool off and thoroughly clean the engine oil from parts before starting the vehicle.

NOTE
Engine damage caused by an incorrect oil filter, incorrect oil or additives

• Do not use engine oils or oil filters which do not correspond to the specifications explicitly prescribed for the service intervals.
• Follow the instructions on the service interval display for changing the engine oil and observe the prescribed change intervals.
• Do not use additives.

NOTE
Damage caused by refilling too much engine oil can damage the engine or the catalytic converter.

• Have excess engine oil removed at a qualified specialist workshop.

Depending on driving style, the vehicle consumes up to 0.9 US qt (0.8 litres) of oil per 600 miles (1,000 km). The oil consumption may also be higher than this when the vehicle is new or if you frequently drive at high engine speeds.

• Turn cap 1 counter-clockwise and remove it.
• Add engine oil.
• Replace cap 1 and turn it clockwise until it engages.
• Check the oil level again.

Checking the coolant level
Risk of burns from hot component parts in the engine compartment Certain component parts in the engine compartment can be very hot, e.g. the engine, the cooler and parts of the exhaust system.

• Allow the engine to cool down and only touch component parts described in the following.

WARNING
Risk of scalding from hot coolant
If you open the cap, you could be scalded.

• Let the motor cool down before opening the cap.
• When opening the cap, wear protective gloves and safety glasses.
• Open the cap slowly to release pressure.

• Park the vehicle on a level surface.
• Check the coolant temperature display on the instrument display.
  The coolant temperature must be in the bottom quarter of the temperature indicator.
• Slowly turn cap 1 counter-clockwise to release overpressure.
• Continue turning cap 1 counter-clockwise and remove it.

The coolant level is correct in the following cases:

• If the engine is cold, the coolant is up to marker bar 2.
• If the engine is warm, the coolant is up to 0.6 in (1.5 cm) over marker bar 2.
• If necessary, refill with coolant that has been approved for Mercedes-Benz.
• Further information on coolant.

Adding washer fluid to the windshield washer system
Adding washer fluid to the windshield washer system parts in the engine compartment Certain parts in the engine compartment can be very hot, e.g. the engine, the cooler and parts of the exhaust system.

• Allow the engine to cool down and only touch the parts described in the following.

WARNING

• Risk of fire and injury from windshield washer concentrate

Windshield washer concentrate is highly flammable. It could ignite if it comes into contact with hot engine parts or the exhaust system.

• Make sure that no windshield washer concentrate spills out next to the filler opening.
• Remove cap 1 by the tab.
• Add washer fluid.
• Further information about the windshield washer fluid.

Keeping the air/water duct free

• Keep the area between the hood and the windshield free of deposits, e.g. ice, snow or leaves.

FAQ

Useful Link

View Full User Guide: Mercedes-Benz E-CLASS SEDAN 2023 User Manual

2023 Mercedes Benz E-Class Specs, Price, Features, Mileage (Brochure)

2023 Mercedes E-CLASS Cleaning and Care User Manual