coolant temperature JAGUAR XF 2009 1.G Owners Manual

Towing
184

Diesel engine vehicles
The diesel engine management system
incorporates sensors to determine optimum
performance. It is also designed to protect the
engine when arduous conditions are
encountered during towing. When ambient
temperature exceeds 40°C (104°F), the engine
coolant temperature may increase above
normal operating level. If this occurs, the
management system will initiate a series of
actions to restore norma l operating conditions.
The actions may include:
• A message centre message.
• Engine performance reduction.
• Air conditioning syst em cycling. The
system temperature output will fluctuate
between hot and cold, in order to dissipate
engine heat. If engine overheat persists,
the air conditioning will move to
continuous heat output.
It is advisable to bring the vehicle and trailer to
a convenient stop and allow the engine to idle
until normal temperature is restored. Do not
turn off the engine.
Trailer electrical connection
Note: The rear parking sensors are
automatically disabled when the trailer
electrical conne ction is made using Jaguar
approved towing equipment.
The vehicle's electrical system has been
designed to support all towing requirements,
and comply with legal requirements for the
specific territory in which the vehicle is first
sold.
LEVELLING
To maintain vehicle stabilit y, it is essential that
the trailer is loaded so that it remains parallel to
the ground. This is particularly important when
towing twin axled trailers.
CAUTION
Only connect appr oved electrical
circuits, which are in good condition to
the trailer socket. Connecting incorrect, or
faulty circuits may seriously damage the
vehicle's electrical circuits.
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Maintenance

Weekly checks
•Engine oil level (non- electronic dipstick
vehicles). See ENGINE OIL CHECK - V6
Petrol engines (page 197).
• Engine coolant check. See ENGINE
COOLANT CHECK (page 204).
• Brake fluid level. See BRAKE FLUID
CHECK (page 206).
• Power steering fluid level. See POWER
STEERING FLUID CHECK (page 208).
• Screen washer fluid level. See WASHER
FLUID CHECK (page 209).
• Tyre pressures and condition. See TYRE
CARE (page 217).
• Operate air conditioning. See AUTOMATIC
CLIMATE CONTROL (page 116).
Note: The engine oil level on V6 petrol engines,
should be checked more frequently if the
vehicle is driven for prolonged periods at high
speeds. The engine oil level on diesel and V8
petrol engines is checked automatically at all
times by the electronic dipstick.
Severe driving conditions
When a vehicle is operated in severe
conditions, more frequent attention must be
paid to servicing requirements.
Severe driving conditions include:
• Driving in dusty and/or sandy conditions.
• Driving on rough and/or muddy roads
and/or wading. •
Driving in extremely hot or cold
conditions.
• Driving in areas using road salt or other
corrosive materials.
• Towing a trailer or driving in mountainous
conditions.
Contact your Dealer/Authorised Repairer for
advice.
Emission control
Your vehicle is fitted with various items of
emission and evaporati ve control equipment,
designed to meet specific territorial
requirements. You should be aware that
unauthorised replacemen t, modification or
tampering with this equipment by an owner or
repair shop, may be unlawful and subject to
legal penalties.
In addition, engine se ttings must not be
tampered with. These have been established to
ensure that your vehicle complies with
stringent exhaust em ission regulations.
Incorrect engine settings may adversely affect
exhaust emissi ons, engine performance and
fuel consumption. The y may also cause high
temperatures, which will result in damage to
the catalytic converter and the vehicle.
Road testing dynamometers (rolling
roads)
Because your vehicle is equipped with anti-lock
brakes, it is essential that any dynamometer
testing is carried out only by a qualified person,
familiar with the dynamometer testing and
safety procedures practised by
Dealers/Authorised Repairers.
CAUTION
Ensure that you take notice of any
message centre information and
warnings relating to engi ne oil level (V8 petrol
and diesel engines only). Top-up the level
when advised to do so. See ENGINE OIL
CHECK - V8 Petrol engines (page 199).