Note: For general information on battery maintenance and charging, refer to Chapter 1, Section 11 Guides.
Disconnecting the battery
1. When carrying out repairs, it is always recommended to disconnect the battery. In principle, if the battery needs to be disconnected without removing it from the vehicle, it is enough to disconnect only the wire from the negative terminal, but in order to avoid any unforeseen accidents, it is recommended to disconnect both wires and close the battery with a protective cover (with appropriate equipment).
Attention: The negative wire is always disconnected first and connected last!
2. There are several systems installed on the vehicle that require a constant power supply. Disconnecting the battery inevitably leads to the erasure of the information stored in the memory of the engine management system about the optimal settings, turning off the clock, destroying the security code entered into the radio receiver, etc. Please read the following guidelines carefully before disconnecting the battery:
- a) On models equipped with a single lock, do not forget to remove the key from the ignition and put the key in your pocket - when the battery is connected, all doors will automatically lock;
- b) Disconnecting the battery will erase all accumulated tuning parameters from the ECM memory (except for basic settings). These parameters include: idle speed, maximum speed and fault codes of the self-diagnosis system. If necessary, read the diagnostic data before disconnecting the battery (see Section 3). After connecting, all the lost settings will be restored automatically, however, this will require some time for the control system, during which the engine may operate unstably in various modes;
- c) If the battery was disconnected while the anti-theft alarm was on, the system will remain in the same mode after the battery is connected. An audible alarm can be triggered when the battery terminals are connected;
- d) On models equipped with a trip computer, disconnecting the battery will also delete all user data entered during the operation of the computer;
- e) The infotainment system installed in the car is equipped with a security code, before disconnecting the battery, make sure that you have the correct combination to activate the equipment. The security code can be found in the owner's manual for the infotainment system and must be kept outside the vehicle. In case of loss of the combination, seek help from the specialists of the Opel branded service station.
Note: On models produced since 2005, the security code is recognized by the electronic system without the intervention of the owner and its input when connecting the battery is not required.
3. You can avoid the unpleasant consequences of disconnecting the battery using an external power source - detailed rules for using such devices are given in their operating instructions. As a rule, such power sources are connected to the cigarette lighter socket, after which the standard battery can be safely disconnected. The current generated by the source should be enough to power the memory of the control module, prevent blocking the radio and keep the clock working.
Attention: Some of these devices can supply enough current to the system for normal operation of other power consumers. Before servicing electrical components, make sure that the corresponding consumer is completely de-energized!
4. After connecting the battery, it is necessary to coordinate the electric drives of the windows and the top hatch (with appropriate equipment) (see chapter «Controls and methods of operation»).
Purchasing a new battery
5 When buying, you must choose a new battery with the same nominal voltage - 12 V, and a capacity (measured in ampere-hours (Ah)), that the replacement battery had.
6. Depending on the generator installed on the engine, the engine starting system and the number of electricity consumers, a battery with a capacity of 36 Ah / 44 Ah / 55 Ah / 60 Ah / 66 Ah / 70 Ah can be installed on the car. The battery capacity corresponding to a particular car is indicated in the technical documentation attached to it upon sale. If during operation it is necessary to change the number of electricity consumers, for example, when installing new equipment, consult an Opel service station, they will advise in detail on the possibility of such changes, help select, install and make appropriate adjustments to the motor electrical equipment. Otherwise, if a battery with a smaller capacity than the required capacity is used, this will lead to a constant overcharging of the battery, boiling of the electrolyte and gradual destruction of the battery plates, as a result, the battery life will sharply decrease. In addition, the output capacity may be insufficient to start the engine, especially during cold starts in the winter season. The purchase of a battery larger than the nominal capacity does not give a gain in terms of its service life, because. constant undercharging will lead to sulfation of the plates. Using a battery with an excessively high starting current can burn the starter windings.
7. Modern technology allows the production of batteries that reliably ensure the functioning of all systems with minimal maintenance (see Chapter 1, Section 11). If you follow the rules of operation, the battery lasts for 3-4 years. However, it must be borne in mind that the control of the engine on modern vehicles, including the models discussed in this manual, is carried out through electronic systems. The number of electronic equipment has also increased to ensure the convenience and comfort of the driver and passengers. All electronic equipment is very demanding on the constancy and magnitude of the voltage in the mains. Therefore, if there is a need for frequent charging of the battery, its starting properties have deteriorated, etc. Don't put off buying a new battery - it will save you a lot more expensive electronic system repairs.
Removal and installation
Note: Please read the above instructions carefully before disconnecting the battery.
8. Turn off all electrical consumers and wait approximately 1 minute to remove the internal electrical voltage on the electronic circuits.
9. The battery is installed in the left front corner of the engine compartment and on some models can be placed in a protective casing.
10. If equipped, open the cover of the protective cover, loosen the nut of the terminal lug and disconnect the wire from the negative terminal (see resist. illustration).
11. If applicable, lift the protective cover and disconnect the positive cable.
12. Remove the mounting bolt, remove the mounting bracket and remove the battery from the engine compartment (see illustration 9.10).
13. If necessary, unscrew the mounting bolts and remove the battery installation tray (see resist. illustration) - do not forget to release the electrical wiring, connectors and hoses that are attached to the pallet from all intermediate clamps.
14. Installation is carried out in the reverse order to the dismantling of the components. Before connecting the battery, it is necessary to clean its surfaces and terminals from traces of oxide and dirt (see chapter 1). Lubricate the terminal blocks with petroleum jelly after connecting the wires.
Attention: The negative wire must be connected last! Do not reverse the battery poles when connecting the wires - this can cause serious damage to the generator and other electrical equipment!
Make sure the battery is secure.
15. After connecting the battery, it is necessary to coordinate the electric windows and the top hatch (with appropriate equipment) (see chapter «Controls and methods of operation»).
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