2022 Volkswagen Passat Owners Manual - Jump-starting

Jump-starting

 Introduction

For technical reasons the vehicle must not be tow-started ⇒ .

If the engine cannot start because the 12-volt vehicle battery has drained, the 12-volt vehicle battery on another vehicle can be used to start your vehicle.

A suitable jumper cable is required for jump-starting.

The wire diameter for the jumper cable.

• For vehicles with gasoline engine: at least 25 mm².

For a vehicle with a 12 V vehicle battery in the luggage compartment, the jumper cable may only be connected to the jump-start points in the engine compartment.

WARNING

Using jumper cables and performing a jump-start incorrectly can cause the 12 V vehicle battery to explode, which can cause serious injuries. To reduce the risk of the 12 V vehicle battery exploding, heed the following:

• Always read and heed the warnings and safety precautions before working on the 12 V vehicle battery ⇒  Introduction.

• Please note that the vehicle battery supplying the power must have the same voltage (12 V) and approximately the same battery capacity (see the label on the vehicle battery) as the drained 12 V vehicle battery.

• Never switch the positive battery terminal with the negative terminal or connect the jumper cable incorrectly.

• Position the jumper cable so that it will never contact rotating components in the engine compartment.

• Follow the operating instructions provided by the manufacturer of the jumper cable.

• Follow the operating instructions for the vehicle providing the jump-start.

WARNING

During a jump-start, a highly explosive gas mixture builds up at the 12 V vehicle battery.

• Always keep fires, sparks, open flames, and lit cigarettes far away from the 12 V vehicle battery.

• Never use a cell phone while connecting and disconnecting the jumper cable.

NOTICE

A drained 12 V vehicle battery can freeze at temperatures around 32 °F (0 °C).

• Never charge a frozen or thawed 12 V vehicle battery.

• Always replace a frozen or thawed 12 V vehicle battery.

NOTICE

To avoid the risk of considerable damage to the vehicle electrical system, heed the following:

• Jumper cables that are connected incorrectly can cause a short circuit.

• There must be no contact between the vehicles. Otherwise, current could already be flowing when the positive battery terminals are connected.

• Only use a jumper cable with fully insulated terminal clamps.

NOTICE

Tow-starting can cause damages.

Jump-starting

 Please read the introductory information and heed the Warnings and Notice ⇒ andIntroduction.

Fig. 133 Diagram for connecting the jumper cables.

1. Vehicle with the drained 12 V vehicle battery that is receiving the jump-start.
2. Vehicle with the 12 V vehicle battery providing power that is providing the jump-start.
3. Suitable negative connection: preferably a jump-start point (negative connection), a large metal part that is bolted securely to the engine block, or the engine block itself.

NOTICE

Take note of the instructions on jump-starting in the other vehicle's Owner's Manual.

The drained 12 V vehicle battery must be connected correctly to the vehicle electrical system.

The vehicles must not touch each other. Otherwise, current could begin flowing when the positive battery terminal is connected.

Make sure the terminal clamps have sufficient contact with metal.

If the engine does not start, stop the starting process after ten seconds, and try again after approximately one minute.

If the engine still does not start, contact an authorized Volkswagen dealer or authorized Volkswagen Service Facility. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Connecting the jumper cables

Only connect the jumper cables in the sequence A – B – C – D fig. 133.

Never connect the black jump-start cable to the negative terminal – on the 12 V vehicle battery. Connecting to the negative terminal can lead to an incorrect evaluation of the status of the 12 V vehicle battery by the vehicle electronics.

1. Switch the ignition off on both vehicles ⇒ Starting and stopping the engine.

2. If necessary, open the cover on the 12 V vehicle battery in the engine compartment ⇒  Introduction.

3. Connect one end of the red  jumper cable A to the positive battery terminal + of the vehicle battery with the discharged 12-volt vehicle battery  fig. 133 ⇒ .

4. Connect the other end of the red  jumper cable B to the positive battery terminal + of the vehicle supplying the power  fig. 133 .

5. Connect one end of the black  jumper cable C preferably to a jump-start point (negative connection), otherwise to a large metal part that is bolted securely to the cylinder block or to the cylinder block itself of the vehicle supplying the power  fig. 133 .

6. Connect the other end of the black  jumper cable D to the jump-start point (negative connection), a large metal part bolted to the engine block, or to the engine block itself in the vehicle with the drained 12-volt vehicle battery  fig. 133 , ⇒ .

7. Route the jumper cables so that they cannot become caught in moving parts in the engine compartment.

Starting the engine

1. Start the engine in the vehicle that is providing current and allow it to run at idle.

2. Start the engine in the vehicle with the drained 12 V vehicle battery and wait two to three minutes until the motor is running “evenly”.

Removing the jumper cables

1. Before disconnecting the jumper cable, switch off the low beam headlights if they are switched on.

2. In the vehicle with the drained 12 V vehicle battery, switch on the blower for the air conditioner or the heating and fresh air system and the rear window defroster. This will reduce any voltage surges that may occur when disconnected.

3. With the engines running, disconnect the jumper cables only in the sequence D – C – B – A fig. 133.

4. Close the battery cover if necessary.

5. After successful jump-starting, have the 12 V vehicle battery checked by an authorized Volkswagen dealer or authorized Volkswagen Service Facility. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

WARNING

Performing a jump-start incorrectly can cause the 12 V vehicle battery to explode, which can cause serious injuries. To reduce the risk of the 12 V vehicle battery exploding, note the following:

• Always wear suitable protective eyewear and protective gloves, and never bend over the 12 V vehicle battery.

• Connect the cables in the correct sequence – first the positive cable, and then the negative cable.

• Never connect the negative cable to parts of the high-voltage system, the fuel system or to the brake lines.

• Make sure that the terminal clamps without insulation do not touch each other.

• Make sure that the cable that is connected to the positive battery terminal on the 12 V vehicle battery does not come into contact with any vehicle components that conduct electricity.

• Avoid discharging static electricity near the 12 V vehicle battery. Sparks could form and ignite the flammable gas that is released by the 12 V vehicle battery.

• Never jump-start a vehicle if the 12 V vehicle battery is damaged, frozen or thawed.

NOTICE

After successful jump-starting, have the 12 V vehicle battery checked by an authorized Volkswagen dealer or authorized Volkswagen Service Facility. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.