Volkswagen Polo Owners Manual: How to start the engine using jump leads

Volkswagen Polo Owners Manual / Starting the engine with jump leads / How to start the engine using jump leads

Fig. 191 How to connect the jump leads when starting vehicles without start/stop system: discharged battery Ⓐ and battery providing assistance Ⓑ

Fig. 192 How to connect the jump leads when starting vehicles with start/stop system: discharged battery Ⓐ and battery providing assistance Ⓑ

First read and observe the introductory information and safety warnings

Vehicle with discharged battery that is being jump-started.
Vehicle with vehicle battery that is supplying power and jump-starting the other vehicle.
Suitable earth connection. A solid metal part that is firmly bolted to the engine block, the engine block itself or, where fitted, the screwed-in towing eye at the front .

The discharged vehicle battery must be properly connected to the vehicle's electrical system.

The vehicles must not touch. Otherwise electricity could flow as soon as the positive terminals are connected.

Ensure that the battery clamps have good metal-to-metal contact with the battery terminals.

If the engine does not start immediately, switch off the starter after about 10 seconds and try again after about half a minute.

The steps should only be carried out in the specified order.

Attaching the jump leads

Switch off the ignitions in both vehicles .

Open the battery cover (if there is one) in the engine compartment or open the cover of the positive jump lead connection point .

Connect one end of the red jump lead to the positive terminal or , or to the jump lead connection point of the vehicle with the discharged battery Ⓐ .

Connect the other end of the red jump lead to the positive terminal ⊕ in the vehicle providing assistance Ⓑ.

In vehicles without start/stop system: connect one end of the black jump lead to the negative terminal ㊀ in the vehicle providing assistance Ⓑ .

In vehicles with start/stop system: connect one end of the black jump lead Ⓧ to a suitable earth connection, to a solid metal part that is securely bolted onto the cylinder or to the cylinder block itself .

Connect the other end of the black jump lead Ⓧ to a solid metal component that is bolted firmly to the engine block of the vehicle with the flat battery, to the engine block itself or, if necessary, to the screwed-in towing eye at the front. Do not connect it to a point near the battery Ⓐ .

Position the leads in such a way that they cannot come into contact with any moving parts in the engine compartment.

Starting the engine

Start the engine of the vehicle providing assistance and let it run at idle.

Start the engine of the car with the discharged vehicle battery and wait two or three minutes until the engine is running smoothly.

Removing the jump leads

Before disconnecting the jump leads, switch off the dipped beam headlights if they are switched on.

Turn on the heater blower and rear window heater in the vehicle battery with the discharged battery. This helps minimise the voltage peaks generated when the leads are disconnected.

With the engines running, disconnect the jump leads in the exact reverse order to the instructions given above.

Close the vehicle battery cover.

WARNING

Jump starting the vehicle incorrectly can cause the battery to explode, which can lead to serious injuries. Please note the following in order to reduce the risk of the battery exploding:

All work on the vehicle battery and the electrical system can cause serious chemical burns, fire and electric shocks. Always read the warnings and safety information before carrying out any kind of work on the vehicle battery .

Always wear suitable eye protection and never lean over the vehicle battery.

Attach the connector cables in the correct order – the positive cable first, followed by the negative.

Never connect the negative cable to parts of the fuel system or to the brake lines.

The non-insulated parts of the battery clamps must not be allowed to touch. The jump lead attached to the positive vehicle battery terminal must not touch metal parts of the vehicle.

Check the window on the vehicle battery using a torch if necessary. If the display is light yellow or colourless, do not jump start the vehicle. Seek expert assistance.

Avoid electrostatic discharge in the vicinity of the vehicle battery. The gas emitted from the vehicle battery could be ignited by sparks.

Do not use jump leads to start the engine if the vehicle battery is damaged or if it is or has ever been frozen.

Positive and earth jump lead connection points

Fig. 190 In the engine compartment: jump lead connection point, positive ⊕ First read and observe the introductory information and safety warnings The positive jump lead connection point is i ...

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