Why does Jaguar XF have 2 batteries?

In addition, a sophisticated control system ensures that the Stop/Start operation only occurs when the car does not require the engine for other functions.” So the weeny 2nd battery on mine is just for stop/start restarting the engine, and the main battery is to keep everything else on during a stop.

How do you reset a Jaguar XF battery?

1 Switch off ignition. 2 Disconnect battery for 30 seconds reconnect battery (not required if battery changed). 3 Start the engine. 4 Confirm that the message “NOT CALIBRATED” or “APPLY FOOT AND PARK BRAKE” is displayed on the instrument cluster message centre.

How to change the alternator in a Jaguar XF?

Using a suitable ratchet, engage the ratchet into the square drive hole near bearing and take tension off of accessory belt and remove from alternator pulley. 6. Remove wiring connector from rear of alternator and unclip from engine mount bracket. Also remove main battery lead from alternator.

How do you remove an alternator from a car?

Once the belt is off just remove whatever bolts connect the alternator to the bracket and you’re good to go. Our model required the removal of three bolts: one at the front and two at the rear. With the old alternator in your hand you’re half way home.

Do you need to remove serpentine belt to change alternator?

As you loosen the bolts, the alternator will slide in the bracket under the tension of the belt. You may not need to remove the serpentine or accessory belt if it’s not damaged.

How to remove alternator from XF 2.7D V6?

Remove wiring connector from rear of alternator and unclip from engine mount bracket. Also remove main battery lead from alternator. 7. Remove alternator front upper mounting bolt then remove both lower bolts supporting alternator whilst removing. Lower alternator and rotate to sit as far forward as possible. 8.

How can I get an alternator out of my car?

With the belt pulled off of the alternator pulley and the wires disconnected, the alternator should come out freely. You may need to wiggle the alternator around some things in order to remove it. Keep track of how you worm the alternator out of the engine bay to help squeeze the new one in. Compare the new alternator to the old one.

As you loosen the bolts, the alternator will slide in the bracket under the tension of the belt. You may not need to remove the serpentine or accessory belt if it’s not damaged.

Where is the insert jack on an alternator?

Insert jack stands beneath the vehicle for safety once it’s jacked up. Remove the main power cable from the alternator. The main power cable will be the thick cable attached to the alternator that runs from the battery.

How to reset the battery in a Jaguar?

8 Release the foot brake. 9 Confirm that the brake warning lamp is no longer illuminated on the instrument pack and that “NOT CALIBRATED” message is no longer displayed in the message centre. 10 apply and release the EPB 5 times to ensure no error is present.