Vehicle Maintenance Mercedes A-Class (W168)
Vehicle care
Car wash Environmental protection laws prohibit washing cars in unauthorized places. If the car is often washed in automatic car washes, the rotating brushes of the car...
Car wash Environmental protection laws prohibit washing cars in unauthorized places. If the car is often washed in automatic car washes, the rotating brushes of the car...
Starting the engine using an auxiliary battery
Precautionary measures If the prescribed procedure is not followed, there is a risk of burns from acid released from the battery. In addition, there is a risk of injury...
Precautionary measures If the prescribed procedure is not followed, there is a risk of burns from acid released from the battery. In addition, there is a risk of injury...
Towing a car
The towing rope should only be attached to the installed towing hooks. Towing rules 1. Turn on the ignition on the towed vehicle. This is necessary so that the steering,...
The towing rope should only be attached to the installed towing hooks. Towing rules 1. Turn on the ignition on the towed vehicle. This is necessary so that the steering,...
Jacking up a car
To perform a large number of maintenance and repair works on a car, it must be placed on stands or raised with a jack or lift. Mercedes has provided special points for...
To perform a large number of maintenance and repair works on a car, it must be placed on stands or raised with a jack or lift. Mercedes has provided special points for...
Maintenance — list of works
The driver is notified and maintenance dates are monitored by the computer program Active Service System, or "ASSYST" for short. Service dates are displayed on the...
The driver is notified and maintenance dates are monitored by the computer program Active Service System, or "ASSYST" for short. Service dates are displayed on the...
Maintenance — works
This chapter covers all maintenance work on various systems, units and assemblies of the vehicle that must be performed as part of maintenance. The necessary wearing...
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This chapter covers all maintenance work on various systems, units and assemblies of the vehicle that must be performed as part of maintenance. The necessary wearing...
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Engine bay — visual inspection
A visual inspection of the condition of the following pipelines, hoses, and their connections should be carried out to ensure that they are tight, free of chafing,...
A visual inspection of the condition of the following pipelines, hoses, and their connections should be carried out to ensure that they are tight, free of chafing,...
Engine Oil and Oil Filter — Replacement
Required special equipment: a) if the oil is taken away, then oil sampling device; oil collection container; b) if the oil is drained, then inspection pit or lift and...
Required special equipment: a) if the oil is taken away, then oil sampling device; oil collection container; b) if the oil is drained, then inspection pit or lift and...
Coolant — Checking the Level
Materials required: antifreeze; distilled water. Examination The coolant level should be checked regularly, approximately every 4 weeks and at least before each long...
Materials required: antifreeze; distilled water. Examination The coolant level should be checked regularly, approximately every 4 weeks and at least before each long...
Coolant — Checking Concentration
Necessary control and measuring instruments: hydrometer for measuring the coolant concentration or the HAZET 4810-B measuring device for checking the electrolyte density...
Necessary control and measuring instruments: hydrometer for measuring the coolant concentration or the HAZET 4810-B measuring device for checking the electrolyte density...
V-belt — checking condition
1. Turn off the ignition. The gearbox should be in neutral. 2. Disconnect plug 1 of crankshaft position sensor 2 to prevent the engine from starting when the starter...
1. Turn off the ignition. The gearbox should be in neutral. 2. Disconnect plug 1 of crankshaft position sensor 2 to prevent the engine from starting when the starter...
Exhaust system — visual inspection
Warning! Jacking up the vehicle and placing it on jack stands is associated with the risk of injury. For this reason, familiarize yourself with the safety precautions...
Warning! Jacking up the vehicle and placing it on jack stands is associated with the risk of injury. For this reason, familiarize yourself with the safety precautions...
Spark plugs — removal and installation
Cars with gasoline engines Tools required: long spark plug wrench 16mm (for example, HAZET 4766) with an outer tube diameter of 23 mm (see illustration 12.0). Materials...
Cars with gasoline engines Tools required: long spark plug wrench 16mm (for example, HAZET 4766) with an outer tube diameter of 23 mm (see illustration 12.0). Materials...
Fuel filter — removal and installation
Warning! No open flames near the workplace! No smoking! The workplace must be equipped with a fire extinguisher! Ensure good ventilation of the workplace. Fuel vapors...
Warning! No open flames near the workplace! No smoking! The workplace must be equipped with a fire extinguisher! Ensure good ventilation of the workplace. Fuel vapors...
Air filter — replacing the filter element
Materials required: replaceable filter element. Removal 1. Unscrew 5 bolts (see arrows in the illustration) using a T25 socket head cap screw driver for the Torx head...
Materials required: replaceable filter element. Removal 1. Unscrew 5 bolts (see arrows in the illustration) using a T25 socket head cap screw driver for the Torx head...
Gearbox. Main gear
In accordance with the maintenance plan, the following work must be performed on the specified units: CV joint covers. Perform a visual inspection of the condition....
In accordance with the maintenance plan, the following work must be performed on the specified units: CV joint covers. Perform a visual inspection of the condition....
Gearbox — visual inspection for leaks
No special tools required. Materials required: gearbox oil approved for use by Mercedes-Benz. Examination Transmission oil leaks may occur in the following places: at...
No special tools required. Materials required: gearbox oil approved for use by Mercedes-Benz. Examination Transmission oil leaks may occur in the following places: at...
Suspension and steering
In accordance with the maintenance plan, the following work must be performed on this unit: Power steering hydraulic drive. Check the fluid level and top up if...
In accordance with the maintenance plan, the following work must be performed on this unit: Power steering hydraulic drive. Check the fluid level and top up if...
Steering Cuffs — Check
No special tool required. Examination Warning! Jacking up a vehicle or placing it on jack stands is dangerous. Therefore, it is recommended that you familiarize yourself...
No special tool required. Examination Warning! Jacking up a vehicle or placing it on jack stands is dangerous. Therefore, it is recommended that you familiarize yourself...
Ball joint caps — check
No special tools or devices are required. Warning! Jacking up a vehicle or placing it on jack stands is dangerous. Therefore, it is recommended that you familiarize...
No special tools or devices are required. Warning! Jacking up a vehicle or placing it on jack stands is dangerous. Therefore, it is recommended that you familiarize...
Power Steering — Checking Fluid Level
Materials required: hydraulic fluid approved for use by Mercedes-Benz or ATF oil. ATF = automatic transmission fluid. Examination Conditions for performing the check:...
Materials required: hydraulic fluid approved for use by Mercedes-Benz or ATF oil. ATF = automatic transmission fluid. Examination Conditions for performing the check:...
Rear Suspension Trailing Arm Support Play — Check
Vehicles with identification number ***515 389 inclusive. Warning! Jacking up a vehicle or placing it on jack stands is dangerous. Therefore, it is recommended that you...
Vehicles with identification number ***515 389 inclusive. Warning! Jacking up a vehicle or placing it on jack stands is dangerous. Therefore, it is recommended that you...
Brakes, tires, wheels
In accordance with the maintenance plan, the following work must be performed: Brake system. Visually check the tightness and condition of the pipes, hoses, brake...
In accordance with the maintenance plan, the following work must be performed: Brake system. Visually check the tightness and condition of the pipes, hoses, brake...
Brake fluid — checking the level
Necessary tools and materials: dOT 4 specification brake fluid. Examination The expansion tank 1 with brake fluid is located in the rear part of the engine compartment...
Necessary tools and materials: dOT 4 specification brake fluid. Examination The expansion tank 1 with brake fluid is located in the rear part of the engine compartment...
Brake pads — checking residual thickness
The remaining thickness of the outer brake pads can be checked through a hole in the wheel rim, if the vehicle configuration allows it (see illustration 24.0). If such a...
The remaining thickness of the outer brake pads can be checked through a hole in the wheel rim, if the vehicle configuration allows it (see illustration 24.0). If such a...
Drum brake shoes — checking the remaining thickness
Warning! Jacking up or jacking up a vehicle can be dangerous. It is therefore recommended that you familiarize yourself with the safety precautions in Chapter " Jacking...
Warning! Jacking up or jacking up a vehicle can be dangerous. It is therefore recommended that you familiarize yourself with the safety precautions in Chapter " Jacking...
Parking brake — checking operation, running-in and adjustment
The parking brake shoes are driven by cable rods. Checking the parking brake 1. Perform a test drive and stop on a road with a slope. 2. Apply the parking brake to three...
The parking brake shoes are driven by cable rods. Checking the parking brake 1. Perform a test drive and stop on a road with a slope. 2. Apply the parking brake to three...
Brake fluid — replacement
Tools required: a socket wrench for unscrewing the bleed nipple of the brake hydraulic drive; transparent hose with an internal diameter of 6 mm; brake fluid collection...
Tools required: a socket wrench for unscrewing the bleed nipple of the brake hydraulic drive; transparent hose with an internal diameter of 6 mm; brake fluid collection...
Wheels and tires
Depending on the model and configuration, MERCEDES A-class vehicles may be equipped with tubeless radial tires and wheels of different sizes. When installing tires or...
Depending on the model and configuration, MERCEDES A-class vehicles may be equipped with tubeless radial tires and wheels of different sizes. When installing tires or...
Body — interior equipment
In accordance with the maintenance work plan, the following must be performed: Hood. Lubricate the hinges. Seat belts. Check condition and functionality. Cars without...
In accordance with the maintenance work plan, the following must be performed: Hood. Lubricate the hinges. Seat belts. Check condition and functionality. Cars without...
Seat belts — visual inspection
Warning! The noises that occur when the seat belts are retracted are caused by the automatic belt retractor mechanism. Never lubricate the mechanism to eliminate these...
Warning! The noises that occur when the seat belts are retracted are caused by the automatic belt retractor mechanism. Never lubricate the mechanism to eliminate these...
Dust/Combination Filter — Replacement
No special devices or tools are required. Materials required: depending on the configuration, a dust filter or a combined one. Attention! Cars with air conditioning are...
No special devices or tools are required. Materials required: depending on the configuration, a dust filter or a combined one. Attention! Cars with air conditioning are...
Towing hitch — checking, cleaning, lubrication
Necessary consumables: liquid transmission oil, motor oil, universal grease. Cleaning 1. Remove the cover that covers the hole for the towbar pin with the ball head. 2....
Necessary consumables: liquid transmission oil, motor oil, universal grease. Cleaning 1. Remove the cover that covers the hole for the towbar pin with the ball head. 2....
Electrical equipment — maintenance
In accordance with the maintenance plan, the following work must be performed: Signal lights, symbol lights and interior and trunk lights. Check for proper operation....
In accordance with the maintenance plan, the following work must be performed: Signal lights, symbol lights and interior and trunk lights. Check for proper operation....
Windscreen wipers — checking the rubber bands of the brushes
1. Move the wiper arms forward and position the blades vertically. 2. Wipe the rubber bands of the wipers with a soft cloth soaked in glass cleaner. 3. Check the...
1. Move the wiper arms forward and position the blades vertically. 2. Wipe the rubber bands of the wipers with a soft cloth soaked in glass cleaner. 3. Check the...
Battery — Checking the Electrolyte Level
Necessary tools and materials: distilled water. Checking and increasing the electrolyte level The amount of electrolyte in the battery, installed as standard at the...
Necessary tools and materials: distilled water. Checking and increasing the electrolyte level The amount of electrolyte in the battery, installed as standard at the...
Service notification and control device
After performing scheduled maintenance work, the previous service message must be cleared from the instrument cluster display and the next service date must be entered....
After performing scheduled maintenance work, the previous service message must be cleared from the instrument cluster display and the next service date must be entered....
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