Rover 75. Service Manual - part 8
Brakes
Brakes
FOOT BRAKE
Electronic brake force distribution
For added safety, the hydraulic braking system operates through
Your car is equipped with Electronic Brake force Distribution
dual circuits. If one circuit should fail, the other will continue to
(EBD), which, in order to maintain braking efficiency,
function, but increased brake pedal travel, greater pedal pressure,
automatically proportions the distribution of braking forces
and longer stopping distances will be experienced.
between front and rear axles, under all load conditions.
In the event of a brake failure where only one circuit is
For example; under light loads EBD applies less effort to the rear
operational, the car should be brought to a halt as soon as traffic
brakes in order to maintain vehicle stability; however if the car is
conditions safely allow. DO NOT continue driving - seek
heavily laden or towing, then more effort will be applied to the
qualified assistance.
rear brakes.
The EBD system incorporates a monitoring system, which checks
Servo assistance
that all electrical components are in working order when the
The braking system is servo assisted, but ONLY while the engine
starter switch is turned on and also at frequent intervals while the
is running. Without servo assistance greater brake pedal effort is
car is being driven. The EBD monitoring system is linked to the
necessary to safely control the car, resulting in longer stopping
brake system warning light on the instrument panel. If this light
distances. Always be aware of the following:
illuminates while driving, or remains illuminated for more than
• NEVER allow the car to freewheel with the engine turned off.
three seconds after the starter switch is turned on, there is a fault
• ALWAYS take particular care when being towed with the
with the braking system, and EBD may not be available. If this
engine turned off.
occurs, stop the car as soon as safety permits and seek qualified
If the engine should stop for any reason while driving, bring the
assistance immediately. DO NOT drive the car with the brake
car to a halt as quickly as traffic conditions safely allow, and DO
system warning light illuminated.
NOT pump the brake pedal lest the braking system lose any
Wet conditions
remaining servo-assistance available.
Driving through water or even very heavy rain may adversely
NEVER move the car without the engine running because
affect braking efficiency. Dry the braking surfaces by intermittent
brake servo assistance may not be available. The brakes will
light application of the foot brake, after first ensuring that you are
still function, but more pedal pressure will be required to operate
at a safe distance from other road users.
them.
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Brakes
Brake system warning light
Brake pad wear indicator
The warning light on the instrument panel should
The road wheels are fitted with brake pad wear sensors. When a
illuminate for about 3 seconds as a bulb check whenever
brake pad wears to a predetermined point, the sensor activates the
the starter switch is turned to the second position, and also
instrument panel warning light/display. The warning will remain
illuminate whenever the handbrake is applied (provided the starter
active until the worn brake pad is replaced.
is switched to the second position).
If the warning light illuminates while driving, or fails to extinguish
2
when the handbrake is fully released, a fault with the braking
system is indicated. Check the brake fluid level; if the light
continues to illuminate, seek qualified assistance before
continuing.
If the brake warning light illuminates while driving, bring the
car to a halt as quickly as traffic conditions and safety permit
and seek qualified assistance before continuing. DO NOT drive
with the warning light illuminated.
Brake pads
Brake pads require a period of bedding in. For the first 800 km,
you should avoid situations where heavy braking is required.
Remember that regular servicing is vital to ensure that all the brake
components are examined for wear at the correct intervals, and
changed when required to ensure long term safety and optimum
performance.
DO NOT rest your foot on the brake pedal while driving; this
may overheat the brakes, reduce their efficiency and cause
excessive wear.
115
Brakes
HANDBRAKE
ANTI-LOCK BRAKES (ABS)
DO NOT drive with the handbrake applied, or apply the
ABS cannot overcome the physical limitations of stopping the
handbrake while the car is in motion; this could result in loss
car in too short a distance, cornering at too high a speed, or the
of control, prevent the anti-lock braking system from functioning
danger of aquaplaning, i.e. where a layer of water prevents adequate
correctly, and may even cause damage to the rear brakes.
contact between the tyres and the road surface.
The fact that a car is fitted with ABS must never tempt the driver
into taking risks that could affect his/her safety or that of other road
users. In all cases, it remains the driver's responsibility to drive
within normal safety margins, having due consideration for
prevailing weather and traffic conditions.
The purpose of the anti-lock braking system (ABS) is to prevent
the wheels from locking while braking, thereby enabling the
driver to retain steering control of the car.
Under normal braking conditions, (where sufficient road surface
H2693a
friction exists to reliably bring the car to a halt without the wheels
locking), ABS will not be activated. However, should the braking
The handbrake operates on the rear wheels only. To apply the
force exceed the available adhesion between the tyres and the road
handbrake, pull the lever up. Always apply the handbrake FULLY
surface causing the wheels to lock (on slippery roads, for example),
whenever you park the car.
then ABS will automatically come into operation.
To release, pull the lever up slightly, depress the button (arrowed
This will be recognisable by a rapid pulsation felt through the
in illustration) and fully lower the lever.
brake pedal.
When parking on a steep slope, do not rely on the handbrake alone
to hold the car. On manual gearbox models, leave the car parked
with the gearbox in a low forward gear when facing uphill and in
reverse gear when facing downhill. On automatic gearbox models,
selection of ‘P’ (park) will lock the transmission and, together with
the handbrake, prevent the car from rolling away.
116
Brakes
Braking in an emergency
ABS Warning light
The ABS incorporates a monitoring system, which
DO NOT pump the brake pedal at any time; this will
checks that all the electrical components are in working
interrupt operation of the ABS and may increase braking
order as soon as the starter switch is turned on, and also at frequent
distance.
intervals during a journey.
If an emergency situation occurs, the driver should apply full
The warning light on the instrument panel is an important part of
braking effort even when the road surface is slippery. The anti-
this system. The light should illuminate for approximately 2
2
lock braking system will constantly monitor the rotational speed of
seconds when the starter switch is turned to the second position
the wheels and vary braking pressure to each according to the
and then extinguish.
amount of traction available. This will ensure that the wheels do
If the warning light fails to extinguish or illuminates while driving,
not lock and that the car is brought to a halt in the shortest possible
a fault has been detected by the self-monitoring system and full
distance for the prevailing road surface conditions.
ABS control may not be available. If this occurs, consult your
NOTE: On soft surfaces such as powdery snow, sand or gravel, the
dealer at the earliest opportunity.
braking distance required by the anti-lock braking system may be greater
NOTE: The normal (non-ABS) braking system remains fully operational
than for non-ABS braking, even though improved steering would be
and is not affected by partial or full loss of the ABS. However, braking
experienced. This is because the natural action of locked wheels on soft
distances may increase.
surfaces is to build up a wedge of surface material in front which assists the
car to stop.
No matter how hard you brake, you should be able to continue
steering the vehicle as NORMAL.
However, always remember that anti-lock braking operates only
AFTER the driver has already lost control. ABS cannot reliably
compensate for driver error or inexperience.
117
Traction Control
Traction Control
ELECTRONIC TRACTION CONTROL*
Manual override
The purpose of electronic traction control is to aid traction,
thereby helping the driver to maintain control of the car in
situations where one or both of the driving wheels are spinning
(for example, if one wheel is on ice and the other on tarmac).
The traction control system monitors the driving speed of each
wheel individually. If spin is detected on one wheel, the system
automatically brakes that wheel, transferring torque to the
opposite, non-spinning, wheel. If both wheels are spinning, the
system will reduce engine speed in order to regulate wheel rotation
until traction is regained.
NOTE: The individual wheel braking feature of the traction control
system will not operate at road speeds above 100 km/h. The engine torque
H2786b
reduction feature continues to function up to the car’s maximum speed.
Traction control is entirely automatic in operation. However, the
system can be manually overridden by pressing the traction control
Warning light
disable switch (see illustration). The system will then remain
On cars equipped with the standard instrument panel
disabled until the switch is pressed a second time, or until the
(no message centre), the light flashes while the traction
starter switch is turned off.
control system is operating (cars equipped with a message centre
feature a traction control message, which appears for a minimum
NOTE: When driving with snow chains fitted, it is recommended that
of 4 seconds).
traction control be disabled.
The light also illuminates as a bulb check (for approximately 3
seconds) when the starter switch is turned on and illuminates
continuously whenever traction control is manually disabled. If
there is a fault with the system, the warning light will fail to
extinguish and remains illuminated even when the car is stationary.
In this case you should seek qualified assistance at the earliest
opportunity.
118
Parking Aid
Parking Aid
PARKING AID*
Parking aid in operation
With the starter switch turned to the second position, the parking
The parking aid is not infallible. It is for guidance only! The
aid operates automatically whenever reverse gear is selected and is
sensors may not be able to detect certain types of obstruction,
switched off as soon as reverse is deselected.
e.g. narrow posts, small objects close to the ground, objects above the
level of the boot on saloon models and some objects with
When reverse is selected a short ‘bleep’ will sound to confirm that
non-reflective surfaces.
the system is working (Note that a one second delay will occur
before the ‘bleep’ sounds).
2
1.5m
NOTE: If a longer, higher pitched, sound is emitted (for a duration of
35cm
5 seconds) when reverse gear is selected, this indicates a fault with the
system - contact your dealer for assistance.
While reversing:
• If an obstruction is located within the 1.5 m range of the rear
parking aid sensors or 60 cm of the corner sensors, the warning
commences chiming. As the car moves closer to the
obstruction, the chimes are transmitted more rapidly.
• Once the obstruction is within 35 cm of the rear bumper, the
chimes merge into a continuous warning tone.
H3002b
60cm
NOTE: In the case of cars equipped with factory fitted towing
Four ultrasonic sensors, situated in the rear bumper, scan an area
equipment, the parking aid will not operate while a caravan or trailer is
behind the car searching for obstructions. If an obstruction is
hitched to the car.
detected, the sensors calculate its distance from the rear of the car
• If the distance between the car and an obstruction to the side of
and communicate this information to the driver by sounding
the car remains unchanged for over three seconds, the warning
warning chimes. It is important to remember that the system is no
chimes cease.
more than an AID to parking. It is not foolproof in operation, nor
is it a substitute for observation and personal judgement.
Keep the sensors free from dirt, ice and snow. If deposits build
up on the surface of the sensors, their performance may be
impaired. When washing the car, avoid aiming high pressure water
jets directly at the sensors from close range.
119
Audio System
122
Audio System Identification
123
Radio Reception
124
Radio Data System
125
Remote Audio Controls
3
126
CD32 - Audio System
141
Harmony - Audio System
3
150
Symphony - Audio System
162
CD Changer Unit
164
Care of Cassette Player and Tapes
165
Satellite Navigation
178
Satellite Navigation System Settings
180
Security Code
Audio System Identification
Audio System
Audio System Identification
AUDIO SYSTEM SPECIFICATION
This section of the handbook covers only those audio systems
fitted as standard to cars within the model range at the time of
manufacture.
If, at the time of ordering your car, you specified a different audio
system, it will have been fitted by your dealer before you took
delivery of your car. In this case, you will have received an
additional operating manual detailing the features and operation of
AS0013
your audio system, which should be used in place of the
Harmony Audio System
instructions that follow.
You are requested to read the audio operating instructions
carefully in order to gain maximum enjoyment from the system.
AS0031
AS0014
CD32 Audio System
Symphony Audio System
NOTE: The Symphony audio system is also available with optional
satellite navigation (see ‘Satellite Navigation’).
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Radio Reception
Radio Reception
RADIO RECEPTION
FM transmitters can only broadcast over a limited range and good,
clear signals will only be received in the immediate area of the
transmitter. When travelling, it may be necessary to re-tune the
radio from time to time, to offset the effects of moving from one
transmitter area to another.
While RDS automatic retuning eases this problem, some manual
retuning may still be needed (especially for local stations) in areas
of weak reception.
The broadcast range for good stereo reception (usually within a 50
to 65 km radius of the transmitter) is noticeably less than it is for
mono.
3
FM Signals (like light waves) travel in a straight line, so large
obstacles, such as tall buildings, can shield the car from the signal
causing distortion or loss of reception (known as dead spots).
Distortion can also occur if FM signals received directly from the
transmitter mix with signals which have been reflected by
ICE 0052A
obstructions such as mountains, hills and tall buildings (this is
known as multi-path distortion).
Distortion, interference and lack of signal clarity, are often
attributed to a fault in the radio - this is rarely the case.
Problems of this kind are usually caused by phenomena such as
atmospheric conditions, signal strength, hilly terrain, tall buildings,
bridges and even electrical interference from power lines.
Please remember: A car radio receives signals while the vehicle
is in motion (unlike a domestic set) - constantly changing direction
and moving away from, or nearer to, the transmitter whilst
negotiating terrain with widely differing reception characteristics.
Some interference is to be expected from time to time.
123
Radio Data System
Radio Data System
RADIO DATA SYSTEM (RDS)
Receiving RDS stations
Your radio is equipped with RDS (Radio Data System). RDS is
Harmony and Symphony audio units are automatically in the RDS
being introduced in European countries and operates on the FM
mode whenever the FM waveband is selected. On the CD32
waveband. The system enables the audio unit to receive other
audio RDS is selectable (see ‘RADIO CONTROLS’, page 130).
information in addition to radio signals. Depending upon the
With RDS active, whenever an RDS radio station is received, the
specification of the audio unit fitted to your car, these may include:
station name illuminates in the display. The audio constantly scans
•
the programme service name: enables the set to display the radio
all alternative frequencies on which that station can be received,
station name instead of the frequency.
and automatically switches to the strongest available signal.
•
alternative frequencies for the FM radio station being received: enables
This is particularly useful on long journeys where the car travels
the audio unit to automatically select the strongest available
through different transmitter areas serving the same radio station.
signal, thereby maintaining the best possible reception.
NOTE: On Harmony and Symphony audio units this facility can be
•
a traffic and/or news information facility: enables the audio unit to
deactivated or reactivated by your dealer.
give priority to traffic and/or news information broadcasts over
other radio, tape or CD programmes.
Local radio and regional broadcasts
•
an alarm announcement facility: enables the set to give priority to
Reception of most local radio stations is intentionally limited to a
emergency information broadcasts; e.g.very serious accidents or
comparatively small area around the transmitter.
natural disasters.
Once the limit of the reception range is reached, it is unlikely that
•
EON (enhanced other networks): enables the audio unit to
the RDS facility will be able to locate an alternative frequency for
broadcast traffic and/or news information from radio stations
the local radio station being received.
other than the one to which the radio is currently tuned
(provided they are all members of a linked network).
Note that in some countries, certain broadcasting companies
•
PTY (programme type): enables the audio unit to be programmed
transmit regional programmes on the FM waveband, either
to select broadcasts of a specific programme type.
continuously or periodically during the day. This may result in the
audio unit changing between a number of different regional radio
NOTE: In some countries, not all FM radio stations broadcast RDS.
stations within the radio programme you have selected.
If a non-RDS station is received, these features will not be available.
NOTE: On Harmony and Symphony audio units, this facility can only
be deactivated or reactivated by your dealer. On the CD32 audio, the
feature is selectable (see ‘REG ON’ and ‘REG OFF’ in ‘MENU
CONTROL FUNCTIONS’, page 140).
124
Remote Audio Controls
Remote Audio Controls
REMOTE AUDIO CONTROLS
Search control
NOTE: On some cars (those equipped with a high-line navigation unit),
a single, brief operation of the search control (either up or down), will
activate a change of pre-set.
Lift or press down to change to the next or previous radio station
on the selected waveband.
During tape or CD play, lift the control to move forward to the
next track, or press down to return to the start of the current track.
Operate the control repeatedly to move forward or back through
several tracks at a time.
3
H2724
Volume control
Lift or press down to increase or decrease volume.
Mode select control
Press to change to tape or compact disc play, or to return to radio
tuner mode. The mode change will only be effected if a tape or
disc has been loaded.
125
CD32 - Radio
CD32 - Radio
DETACHABLE CONTROL PANEL
For added protection against theft, remove the control panel and
IMPORTANT
take it with you when you leave the car. DO NOT leave the
• DO NOT subject the control panel to severe shocks, or expose it
control panel inside the car.
to direct sunlight or other sources of heat.
• Avoid direct skin contact with the electrical contacts on the back
of the control panel. Periodically, clean the contacts on the back
of the control panel and the matching contacts on the audio unit
with a clean, dry, lint-free cloth. Use methylated spirits if
available.
• When replacing the control panel, do not press the display.
AS0028
Removing the control panel
Press the release button (arrowed in illustration) to unlock the
control panel, then pull the control panel away from the audio unit
as shown.
If the audio unit is switched on when the control panel is removed,
the unit switches off automatically and switches back on when the
control panel is replaced.
NOTE: If a CD is loaded, it need not be ejected before removing the
control panel.
Replacing the control panel
Place the right side of the panel into position, then push the left-
hand side into the front of the audio unit until it clicks into place.
126
CD32 - Radio
SOUND CONTROLS
3. Audio selection control
Use in conjunction with the
and
controls (5) to adjust
bass, treble, balance and fader levels. Note that different bass and
1
2
5
treble levels can be set for each sound source (e.g. radio, or CD).
Bass: To increase or reduce bass response:
1. Press the AUDIO control - (‘BASS’ shows in the display).
2. Press
or
to adjust bass response.
•
‘BASS +7’ = maximum bass
•
‘BASS 0’ = normal bass
•
‘BASS -7’ = minimum bass
Treble: To increase or reduce treble response:
AS0030
6
3
4
3
1. Press the AUDIO control - (‘BASS’ shows in the display).
1. On/off button
2. Press either or until ‘TREB’ appears in the display.
Press to switch on (the display shows ‘CODE’ followed by
3. Press
or
to adjust treble response.
‘ROVER’). Press and hold for at least two seconds to switch off.
•
‘TREB +7’ = maximum treble
•
‘TREB 0’ = normal treble
NOTE: The audio unit can be operated without the starter switch turned
•
‘TREB -7’ = minimum treble
on. However, it will switch off automatically after one hour in order to
avoid draining the battery.
Balance: To adjust the balance between right and left speakers:
1. Press the AUDIO control - (‘BASS’ shows in the display).
2. Volume control
2. Press either or until ‘BAL’ appears in the display.
The volume can be adjusted in steps from 0 to 66. Rotate to left
3. Press the
or
to adjust the right/left balance.
or right (the volume level is shown in the display).
•
‘BAL +9’ = maximum sound from RIGHT
The volume can also be adjusted using the remote switches on the
•
‘BAL 0’ = equal balance
steering wheel (see ‘REMOTE AUDIO CONTROLS’,
•
‘BAL -9’ = maximum sound from LEFT
page 125).
NOTE: If you have a car telephone with a mute signal output connected
to the stereo system, radio or CD play automatically mutes to a preset
volume level while the telephone is in use (see ‘Muting the sound’,
page 128).
127
CD32 - Radio
Fader: To adjust the balance between front and rear speakers:
Muting the sound
1. Press the AUDIO control - (‘BASS’ shows in the display).
Briefly press the on/off button (1) (‘MUTE’ appears in the
2. Press or until ‘FADER’ appears in the display.
display). The volume will instantly reduce to a preset level. The
3. Press
or
to adjust the front/rear balance.
preset volume level can be adjusted as follows:
•
‘FADER +9’ = maximum sound from FRONT
1. Press the MENU button (6).
•
‘FADER 0’ = equal balance
2. Press the
control until ‘MUTE LVL’ is displayed.
•
‘FADER -9’ = maximum sound from REAR
3. Press the
controls to adjust the volume.
4. Press the MENU button twice to store the setting.
4. X-Bass control
Use the X-BASS feature to boost bass responses at low volume.
Setting the power-on volume
Separate levels can be set for each sound source (e.g. radio, or CD).
The default volume (the volume level present when the audio unit
is switched on) can be adjusted, as follows:
1. Press the X-Bass control.
2. Repeatedly press either the
or
controls (5) until the
1. Press the MENU button (6).
required setting is displayed.
2. Press
until ‘ON VOL’ is displayed.
•
‘X BASSOFF = feature switched off.
3. Press or to reduce or increase the volume.
4. Press the MENU button twice to store the setting.
•
‘X BASS 1 = minimum boost.
•
‘X BASS 2 = medium boost.
NOTE: If ‘LAST VOL’ is selected, the power-on volume will be the
•
‘X BASS 3 = maximum boost.
same as the volume level that was set when the unit was last switched off,
3. Press the X-Bass control to store the required setting.
provided this did not exceed volume level 38.
NOTE: After 8 seconds without further adjustment, all audio settings are
stored and the selection mode (including X-BASS) cancels automatically.
128
CD32 - Radio
Output level display
Illuminated bars flash in the display to provide a graphic indication
of the sound control settings as they are adjusted. At other times,
the display symbolises the radio’s output level. The output level
display can be enabled or disabled as follows:
1. Press the MENU button (6).
2. Press the
control until ‘PEAK LVL’ is displayed.
3. Press or
to select ‘PEAK ON’ or ‘PEAK OFF’.
4. Press the MENU button twice to store the setting.
Treble reduction feature (HICUT) - FM only
HICUT improves reception in poor operating conditions. If
interference occurs, the treble is automatically reduced. The
3
feature can be enabled or disabled as follows:
1. Press the MENU button (6).
2. Press the
control until ‘HICUT’ is displayed.
3. Press the or controls to select ‘HICUT 1’ (treble
reduction activated), or ‘HICUT 0’ (no treble reduction).
4. Press the MENU button to store the setting.
129