Switching the hazard warning light system on/off
WARNING Danger of accidents due to concealed lighting systems
If you open the rear doors by 90°, the rear lighting systems are concealed.
other road users cannot see the vehicle or can see it only with difficulty
Therefore, in these or similar cases, secure the vehicle in accordance with national regulations, e. g. with the warning triangle.
Press the
button.
button. If you operate a turn signal indicator while the hazard warning light system is switched on, only the turn signal lamps on the relevant side of the vehicle will light up.
The hazard warning light system will switch on automatically in the following situations:
The airbag is deployed
The vehicle is heavily braked from a speed of more than
70 km/h to a standstill.
The hazard warning light system will automatically switch off when the vehicle regains a speed of more than
Remove fire extinguisher
WARNING Risk of accident due to an incorrectly secured fire extinguisher in the driver's footwell
A fire extinguisher may impede pedal travel or block a depressed pedal.
This jeopardises the operating and road safety of the vehicle.
The fire extinguisher can be flung around and injure the driver or other vehicle occupants.
Always store and secure the fire extinguisher in the bracket.
Do not remove the fire extinguisher while driving.
Open the fastener of the 
holder.
holder. Remove the fire extinguisher from the holder.
fire extinguisher from the holder. On vehicles with a swivelling front seat, the holder with the fire extinguisher is on the side of the seat box.
Carefully read the instructions on the fire extinguisher and familiarise yourself with its use. Have the fire extinguisher refilled after each use and checked every one or two years. It may otherwise fail in an emergency.
Observe the legal requirements for the country you are currently in.
Removing the warning triangle
The warning triangle is located in the stowage compartment in the driver's door.
Take the warning triangle out of the stowage compartment.
Removing the first-aid kit (soft sided)
The first-aid kit (soft sided) is located in the stowage compartment in the co-driver door.
Remove first-aid (soft sided) kit from the stowage compartment.
Check the expiry date on the first-aid kit (soft sided) at least once a year. Replace any expired or missing contents.
Observe the legal requirements of the country in which you are currently driving.
QR codes for rescue card
The QR code stickers are affixed to the B-pillar on the driver's and front passenger side. In the event of an accident, emergency services can use the QR code to quickly determine the corresponding rescue card for your vehicle. The current rescue card contains the most important information about your vehicle in a compact form, e.g. the routing of the electric lines.
Further information can be obtained at Mercedes-Benz rescue card homepage
Starting assistance and charging the 12 V battery
WARNING Risk of explosion from a frozen battery
A discharged battery may freeze at temperatures slightly above or below freezing point.
During starting assistance or battery charging, battery gas can be released.
Always allow a battery to thaw before charging it or performing starting assistance.
If the warning/indicator lamps do not light up in the instrument cluster at temperatures around or below freezing, it is highly probable that the discharged battery has frozen.
In this case, observe the following points:
Do not give the vehicle starting assistance or charge the battery.
The service life of a battery that has been thawed may be reduced drastically.
The starting behaviour may deteriorate, particularly at low temperatures.
It is recommended that you have a thawed battery checked at a qualified specialist workshop.
WARNING Risk of explosion due to explosive mixture of gases
An explosive mixture of gases can escape from the battery during charging and starting assistance.
Fire, naked flames, smoking and creating sparks must be avoided.
Make sure there is adequate ventilation.
Do not stand over the battery.
WARNING Danger of chemical burns from the battery acid
Battery acid is caustic.
Avoid contact with the skin, eyes or clothing.
Do not lean over the battery.
Do not inhale battery gases.
Keep children away from the battery.
Immediately rinse battery acid off thoroughly with plenty of clean water and seek medical attention immediately.
Starting assistance
NOTEDamage caused by numerous or extended attempts to start the engine
Numerous or extended attempts to start the engine may damage the catalytic converter due to non-combusted fuel.
Avoid numerous and extended attempts to start the engine.
Do not use a rapid charging device to start the vehicle. If your vehicle's battery is discharged, the engine can be jump-started from another vehicle or from a donor battery using jump leads. For this purpose, the vehicle has a jump-start connection point in the engine compartment.
When jump-starting, observe the following points:
The battery is not accessible in all vehicles. If the other vehicle's battery is not accessible, starting assistance is to be provided using a donor battery or a starting assistance device.
You may only jump-start the vehicle when the engine and exhaust system are cold.
If the battery is frozen, do not start the vehicle. Let the battery thaw first.
Starting assistance may only be provided using batteries with a nominal voltage of 12 V.
Only use jump leads that have a sufficient cross-section and insulated terminal clamps.
If the battery is fully discharged, attach the donor battery for a few minutes before attempting to start. This charges the discharged battery a little.
Make sure that the two vehicles do not touch.
Jump leads and further information regarding starting assistance can be obtained at any qualified specialist workshop.
Ensure the following before connecting the jump lead:
The jump leads are not damaged.
Parts of the terminal clamps which are not insulated do not come into contact with other metal parts while the jump leads are connected to the battery.
The jump leads do not touch moving parts when the vehicle is started, such as the V-belt pulley or the fan.
Apply the parking brake.
Vehicles with automatic transmission:
shift the transmission to position 
. Vehicles with manual transmission:
shift to neutral. Switch off all electrical consumers, e.g. audio equipment, blower.
Switch off the vehicle and remove the key.
Open the bonnet More.
Connecting and disconnecting the jump lead
Example: jump-start connection point
Push contact protection cover of the jump-start connection point towards the rear of the vehicle against the spring pressure as far as it will go.
of the jump-start connection point towards the rear of the vehicle against the spring pressure as far as it will go. Positive terminal 
of the jump-start connection point is visible.
Terminal connection diagram
Remove the cover from positive terminal 
of the donor battery.
of the donor battery. Connect the positive terminal clamp of the jump lead to positive terminal of the donor battery, and then to positive terminal of the jump-start connection point.
of the donor battery, and then to positive terminal of the jump-start connection point. Connect the negative terminal clamp of the jump lead to negative terminal of the donor battery, and then to earth contact 
of your own vehicle.
of the donor battery, and then to earth contact of your own vehicle. Start the engine of the donor vehicle and run it at idling speed.
Start the vehicle and let the engine run for a while.
Before disconnecting the jump leads, switch on an electrical consumer in your own vehicle, e.g. the rear window heater or the lighting.
Disconnect the negative terminal clamp of the jump lead from earth contact and then from negative terminal of the donor battery.
and then from negative terminal of the donor battery. Disconnect the positive terminal clamp of the jump lead from positive terminal on the jump-start connection point, and then from positive terminal of the donor battery.
on the jump-start connection point, and then from positive terminal of the donor battery. Contact protection cover is automatically returned forwards to its original position by the spring force and the jump-start connection point is closed.
Position the cover on positive terminal of the donor battery.
of the donor battery. Have the battery checked at a qualified specialist workshop.
Charging the 12 V battery
NOTE Damage to the electronics due to unapproved chargers
If you charge an installed battery with a charger not approved for Mercedes-Benz, the on-board electronics can be damaged.
Only use a charger approved for Mercedes-Benz which permits charging in the installed condition.
Only charge the battery via the jump-start connection point.
A battery charger specially adapted for Mercedes-Benz vehicles and tested and approved for Mercedes-Benz is available as an accessory.
Further information is available from any Mercedes-Benz service centre. Read the operating instructions for your charger before charging the battery.
Recharge the battery more frequently if you use the vehicle mainly for short trips and/or drive at low outside temperatures.
Connect the battery charger to the positive terminal and earth contact in the same order as when connecting the donor battery in the jump-starting procedure.
If a battery is not fitted and not in service, you should charge it every three months. This helps to counteract self-discharging and prevent damage to the battery.
12 V battery care
NOTE Battery discharge due to leakage currents
Dirty battery terminal clamps and battery surfaces cause leakage currents. This can lead to the battery discharging.
Keep the battery terminals and battery surfaces clean and dry.
NOTE Damage to the battery housing due to improper cleaning
If you use cleaning agents containing fuel, these can damage the battery housing.
Do not use cleaning agents containing fuel.
NOTE Damage to the battery due to self-discharge
If dirt gets into the battery cell, the self-discharge of the battery is increased and the battery can be damaged.
Only clean the battery with the cell caps screwed in.
Observe the following points on battery care:
Regularly check the battery terminals and the fastening of the negative cable to the chassis to ensure that they are firmly seated.
Lightly grease the undersides of the battery terminal clamps with acid-resistant grease.
Only clean the battery housing with commercially available cleaning agents.
Notes on electrical fuses
WARNING Risk of accident and injury due to overloaded lines
If you manipulate or bridge a faulty fuse or if you replace it with a fuse with a higher amperage, the electric line could be overloaded.
This could result in a fire.
Always replace faulty fuses with specified new fuses containing the correct amperage.
If the new fuse which has been inserted also blows, have the cause traced and rectified at a qualified specialist workshop.
The fuse allocation chart and the information on the fuses can be found in the "Fuse allocation chart" Supplement.
Notes on flat tyres
WARNING Risk of accident due to a flat tyre
A flat tyre strongly impairs the vehicle's driving characteristics, as well as its steering and braking characteristics.
Do not drive with a flat tyre.
Replace the flat tyre with the spare wheel. Alternatively, consult a qualified specialist workshop.
You will find a sticker with the Mercedes-Benz Service24h telephone number e. g. on the B-pillar on the driver's side, for example.
For vehicles with a spare wheel, information in the event of a flat tyre can be found under "Wheels and tyres" More.
Overview of permitted towing methods
WARNING Risk of accident due to limited safety-related functions during the towing process
Safety-related functions are limited or no longer available in the following situations:
the vehicle is switched off.
the brake system or power steering system is malfunctioning.
the energy supply or the on-board electrical system is malfunctioning.
When your vehicle is towed away, significantly more effort may be required to steer and brake than is normally required.
Use a tow bar.
Make sure that the steering wheel can move freely before towing the vehicle away.
WARNING Risk of accident when towing with steering wheel lock
If the steering wheel lock is engaged, you will not be able to steer the vehicle.
When towing with a tow rope or tow bar, always switch on the vehicle.
WARNING Risk of accident when towing a vehicle which is too heavy
If the vehicle to be tow-started or towed away is heavier than the permissible gross mass of your vehicle, the following situations can occur:
the towing eye may become detached.
the vehicle/trailer combination may swerve or overturn.
Before tow-starting or towing away, check if the vehicle to be tow-started or towed away exceeds the permissible gross mass.
Details on the permissible gross vehicle weight of your vehicle can be found on the vehicle identification plate More.
NOTE Damage to the vehicle due to automatic braking
When the following functions are activated, the vehicle brakes automatically in certain situations:
Active Brake Assist
Active Distance Assist DISTRONIC
HOLD function
To avoid damage to the vehicle, deactivate these systems in the following or similar situations:
when towing
in a car wash
NOTE Damage due to incorrect connection of the tow bar or improper use of the towing device
Only connect the tow rope or tow bar to the towing eyes or the trailer tow hitch.
Do not use the towing eyes to recover a vehicle.
NOTE Damage due to pulling force being too high
Pulling away abruptly can damage the vehicles if the tractive forces are too high.
Pull away as straight, slowly and smoothly as possible.
NOTE Damage due to improper towing with a tow rope
If you ignore safety and protective measures when towing with a tow rope, this can result in damage to the vehicle.
Observe the following points:
Secure the tow rope on the same side on both vehicles.
Secure the tow rope to the towing eyes.
Do not exceed the legally prescribed length of the tow rope.
Mark the tow rope in the middle, e.g. with a white cloth (30 x 30 cm ). This will make other road users aware that a vehicle is being towed.
During the journey, observe the brake lamps of the towing vehicle and maintain the distance so that the tow rope does not sag.
Do not use steel cables or chains to tow your vehicle.
NOTE Damage due to towing the vehicle at too high a speed or too far
Towing the vehicle at too high a speed or too far can damage the drivetrain.
Do not exceed a towing speed of 50 km/h .
Do not exceed a towing distance of 50 km .
NOTE Damage to the automatic transmission when towing due to shifting into transmission position
If you open the driver's or co-driver's door when towing, it can lead to the automatic transmission shifting to position and becoming damaged.
Shift the automatic transmission to position 
.
. Do not open any doors during the towing process.
When towing, observe the legal requirements for the country in which you are driving.
Mercedes-Benz recommends transporting your vehicle in the case of a breakdown, rather than towing it away.
If the vehicle's transmission is damaged, have it carried on a transporter or trailer.
 Both axles on the ground |  Front axle raised |  Rear axle raised | |
|---|---|---|---|
Vehicles with manual transmission and front-wheel drive | Yes, maximum | Yes, maximum | No |
Vehicles with manual transmission and rear-wheel drive | Yes, maximum | No | Yes, if the steering wheel is fixed in the centre position with a steering wheel clamp. Yes, for a maximum of |
Vehicles with automatic transmission | Yes, maximum | No | Yes, if the steering wheel is fixed in the centre position with a steering wheel clamp. Yes, for a maximum of |
Vehicles with all-wheel drive (4x4) | Yes, maximum | No | No |
If the transmission cannot be shifted to position , have the vehicle transported More. A towing vehicle with lifting equipment is required for vehicle transportation.