Battery terminal JAGUAR XJ 2004 X350 / 3.G Owners Manual

2 - 6 Security and Locks
Key transmitter battery renewal
When the battery needs renewal there will be a significant
decrease in the effective range of the key transmitter. To renew
the battery, follow the procedure below:
• Insert a small, flat-blade, screwdriver at an angle of about 45 degrees, into the slot on th e back of the key transmitter
as shown ( A). Apply light pressure to the screwdriver and
lever the screwdriver forward to separate the two halves of
the key transmitter. Finally, pu ll the transmitter from the key
body.
• Insert the screwdriver into th e slot between the transmitter
covers adjacent to the key stowage area as shown ( B).
Apply light pressure to the screwdriver and lever the
screwdriver downward to separate the covers.
• Unscrew and remove the small screw ( C) and remove the
printed circuit board, taking care not to touch the battery
terminals. Remove the battery and dispose of it safely.
• Fit a new battery cell, type CR2032 (available from your
Jaguar Retailer), with the si de marked with the positive
symbol (+) downwards in the battery receptacle.
Avoid touching the new battery as moisture/oil from the
fingers can reduce the life of the battery and corrode the
contacts.
• Replace the printed circuit board making sure to engage the board under the securing tabs (D ), and secure with the
screw.
• Refit the cover and click into place with thumb pressure.
• Slide the transmitter back onto the key body until it clicks
into place.

Roadside Emergency 6 - 5
Caution:
1. If using a jump start vehicle, under no circumstances should the
vehicles come into contact with
each other. This could establish an
earth connection, which may
cause sparks and damage.
2. Do not run the engine of the jump start vehicle when boost starting a
Jaguar vehicle. If the jump start
vehicle’s engine is running and
the jump leads ar e disconnected,
damage to the Jaguar vehicle’s
electrical system will result.
3. The booster battery voltage must not exceed 12 volts.
The procedure must be followed exactly,
being careful not to cause sparks:
1. Unclip the battery positive (+) terminal cover.
2. Attach one end of the red jump lead to the positive (+) terminal of the
booster battery and the other end to
the positive (+) terminal of the
discharged battery. Make sure that a
good connection is made.
Caution: Do not connect the negative
jump lead directly to the negative (–)
terminal of the discharged vehicle. 3. Attach one end of the black jump lead
to the negative (–) terminal of the
booster battery and the other end to
the earth stud on the left-hand side of
the spare wheel well.
4. Start the engine.
5. When started, allow the engine to idle for five minutes before disconnecting
the cables.
6. Disconnect the black jump lead from the earth point and the booster battery
negative (–) terminal. 7. Disconnect the red jump lead from the
positive (+) terminals of both
batteries.
8. Refit the cover to the positive (+) terminal.
9. Close the trunk floor panel.
After starting the engine, it may be
necessary to reset th e electric parkbrake
as described on page 4 - 34. See also After
battery reconnection on page 7 - 16.

Maintenance 7 - 13
Battery
A low maintenance battery specifically
designed for use with this vehicle is fitted
below the luggage compartment floor.
!WARNING:
California Proposition 65:
Battery posts, terminals and related
accessories, contain lead and lead
compounds. Wash hands after
handling.
!WARNING:
1. The cell plugs and vent pipe must
be in place at all times when the
battery is in the vehicle. Failure to
fit, or incorrect fitting of these
items is potentially hazardous.
2. To avoid injury do not use an open flame or cause an electric spark
when checking the battery.
Hydrogen gas generated by the
battery is flammable and may
explode. 3. Do not connect any 12 volt
equipment (for example a 12 volt
lead lamp) directly to the battery
terminals. Use the accessory
sockets to temporarily connect
Jaguar approved accessories.
4. Do not let battery acid electrolyte come into contact with skin or
eyes. If you get any in your eyes or
on your skin, immediately rinse
with cold water and consult a
doctor.
Caution:
1. Switch off the ignition before disconnecting battery terminals.
Always disconnect the earth
terminal first and reconnect last.
2. Do not let battery acid come into contact with painted surfaces or
fabric.
The exterior of the battery should be
occasionally wiped clean to remove any
dirt or grease.
If a new battery is to be fitted, it must be
the same type as the original.
The use of unapproved batteries is not
recommended and coul d invalidate the
vehicle warranty. Note:
The service life of the battery is
dependent on its condition of charge.
It must always be sufficiently charged for
the battery to last an optimum length of
time.
We recommend that the battery charge is
checked frequently if the vehicle is used
mostly for short distance trips, or if it is
not used for long periods of time.
Battery/ignition isolator switches
Non-approved battery isolator switches,
which disconnect the power supply to all
electrical circuits, are not recommended.
Generator
To prevent damage to the generator,
do not run the engine while the battery
or any of the charging circuit cables are
disconnected.
The generator has polarity-sensitive
components that may be irreparably
damaged if subjected to incorrect
polarity. Ensure that the battery earth
lead is always connected to the battery
negative terminal.

Maintenance 7 - 15
Check/Top Up Battery
Electrolyte
In normal climates this must be carried
out at least once a year. In hot weather/
climates the electrolyte level must be
checked at least every three months.
Fold the luggage compartment floor panel
forwards (see page 6 - 4).
Unscrew the six cell plugs. Check that the
electrolyte is level wi th the plastic level
indicator ( A). If necessary, top up with
distilled water but do not overfill.
If illumination is required, use a hand-
held flashlight to in spect the electrolyte
level.
Refit the six cell plugs and refit the
battery cover.
Battery Charging
!WARNING:
1. Batteries produce combustible gas (hydrogen) when being charged.
The battery must be removed
from the vehicle before charging
commences.
2. Never charge or boost a frozen battery.
To disconnect the battery, refer to
Battery lead disconnection on
page 7 - 16.
When charging the battery ensure that
the charge voltage is the same as the
nominal voltage of the battery.
Switch off the charge r before connecting
or disconnecting terminal connections to
avoid sparks and short circuits.
Ensure that the charger positive (+) lead
is connected to the positive (+) terminal
of the battery and the negative (–) lead is
connected to the nega tive (–) terminal of
the battery.
Do not remove or loosen any of the cell
plugs when charging the battery.
Check and, if necessary, top up the
electrolyte level when the battery is fully
charged.
SULFURIC ACID can
cause blindness or severe
burns
FLUSH EYES
IMMEDIATELY WITH
WATER
GET MEDICAL HELP FAST
General warning on the label:
KEEP OUT OF THE REACH OF
CHILDREN
DO NOT TIP
KEEP VENT CAPS TIGHT AND LEVEL

7-16 Maintenance
Battery lead disconnection
Caution:
1. Under no circumstances should a battery be discon nected whilst
the ignition circuit is live,
as permanent damage to the
instrument cluster may occur.
2. Disconnect the negative lead (earth terminal) first.
Fold the luggage compartment floor panel
forwards (see page 6 - 4).
Slacken the negative lead pinch bolt and
disconnect the negative (–) battery lead.
Slacken the positive lead pinch bolt and
disconnect the positive (+) battery lead. Battery lead connection
Note:
Upon battery reconnection the
security system will be armed. Opening
any protected entry will sound the alarm.
Make sure that a key or key transmitter is
available.
Caution: Do not overtighten the
pinch bolts.
Clean the battery posts and coat the post
bases with petroleum jelly.
Connect the positive (+) lead, tighten the
pinch bolt and clip the positive terminal
cover on the battery. Connect the
negative (–) lead and tighten the pinch
bolt.
After the battery ha s been reconnected
and the ignition swit ch is turned to
position ‘II’, the message centre display,
if fitted, will initially show an erroneous
reading i.e.––––––. Thiswill remain
until after the bulb check sequence, when
the correct recorded mileage will be
displayed. This is a normal function of the
instrument cluster.
After battery reconnection
After reconnecting the battery:
• Reset the electric parkbrake; refer to Parkbrake on page 4 - 34. • Reset the electrically operated
windows anti-trap function; refer to
Window Anti-trap Protection on
page 4 - 30.
• The trip computer will lose all recorded trip data and all trip
functions will be reset to zero.
The vehicle total odometer reading is
retained.
• If the battery is disconnected for more than 72 hours the radio preset
channels will need to be reset.
• Where fitted, the TV preset channels may need to be reset. Refer to the
Jaguar Touch-screen Handbook.
• Reset the clock to the correct time.
The engine electronic control system
adapts to certain characteristics of the
vehicle. These adaptations are lost if the
battery is disconnected.
On reconnection, therefore, some slightly
abnormal drive symptoms may occur and
the vehicle may need to be driven
10 miles (16 kilometres) or more while
the control system re-adapts.

Maintenance 7 - 25
Electrical Accessories
!WARNING:
Alterations to the electrical system,
including the fitting of accessories not
designed for this Jaguar, will cause
damage to the electrical circuits and
systems. In some circumstances this
could result in a malfunction or fire.
All accessory work should be
entrusted to a Jaguar Retailer.
Caution:
1. Under no circumstances must the power supply be obtained directly
from either battery terminal.
2. The use of non-approved accessories can reduce the battery
capacity and charge period to an
unacceptable level, therefore,
Jaguar cannot acce pt any liability
for the fitment of any such item.
Earth Points
If an accessory needs to be connected to
an earth point, consult a Jaguar Retailer.
Caution: Under no circumstances
must holes be drilled in the
bodywork to accept earth terminals.