Mercedes-benz 2013 CLA Class User Manual download pdf (Page 309)

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 second battery using jump

leads. Observe the following points:

The battery is not accessible in all vehicles. If the other vehicle's battery is not accessible,

jump-start the vehicle using a second battery or a jump-starting device.

Vehicles with a petrol engine: only jump-start the vehicle when the engine and exhaust

system are cold.

Do not start the engine if the battery is frozen. Let the battery thaw first.

Jump-starting may only be performed from 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, leave the battery that is being used to jump-start connected

for a few minutes before attempting to start. This charges the empty battery a little.

Make sure that the two vehicles do not touch.

Make sure that:

the jump leads are not damaged.

bare parts of the terminal clamp do not come into contact with other metal parts while the

jump leads are connected to the battery.

the jump leads cannot come into contact with parts which can move when the engine is

running, such as the V-belt pulley or the fan.

Secure the vehicle by applying the electric parking brake.

Manual transmission: depress the clutch pedal fully and shift to neutral.

Automatic transmission: shift the transmission to position P.

Turn the key to position 0 in the ignition lock and remove it.

Switch off all electrical consumers, e.g. rear window heating, lighting etc.

Open the bonnet.

Jump-starting

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Breakdown assistance

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Mercedes-benz 2013 CLA Class User Manual Page 309