2005 LOTUS ELISE driver

stopping distance, a locked wheel provides little or no steering
force, such that with both front wheels locked, movement of the steering wheel has no effect on car direction. With the anti-lock
system, even panic braking results in controlled deceleration and the retention of steering response. ABS is especially ad
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vantageous when braking on slippery road surfaces and in bad driving conditions, but it is important to realise that the ABS
cannot increase the friction level at the road surface, but can only make optimum use of the grip available.
WARNING: When driving in adverse weather, or on poor road sur
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faces, always be alert to the possibility of slippery condi
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tions and make the necessary allowance for increased stop
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ping distances. Failure to do so may result in an accident in which you or others may be killed or seriously injured.
Normal braking, controlled by the pressure applied to the
brake pedal, occurs when the road conditions allow for decel
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eration to be achieved without danger of wheel lock. The relative
speeds of the four wheels are continuously monitored by the
ABS when the brakes are applied, and if one or more wheels begin to lock, the brake pressure to that wheel(s) is modulated
by the ABS to help keep the wheel rotating and provide the
maximum controlled braking force. The wheels may appear
to lock momentarily as the wheel speed rapidly changes, and some tire noise (intermittent screeching) may be heard which is normal and will vary with road and tire conditions. Note that the
ABS does not function at speeds below 5 mph (7 km/h). When the ABS is activated, the driver is will feel a ‘pulsing’
sensation at the brake pedal as the fluid pressure is modulated, and also by audible clicking sounds. These signals indicate to
the driver that maximum braking is occuring, and that driving style should be modified to suit the conditions.
The minimum stopping distance is achieved by applying the
brakes firmly and steadily, and allowing the ABS to modulate
hydraulic pressure. The driver should not attempt to emulate
this process by ‘pumping’ the brake pedal, as modulation at the pedal will treat all four wheels similarly, rather than the individual
wheel control allowed by the electronics. An ABS tell tale lamp in the instrument panel is provided
to warn of any problems in the system and to indicate that the
Driving Controls
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integral self diagnostics have switched out the anti-lock function.
See ‘ABS tell tale lamp’.
WARNING:
• The increased control that ABS provides should not induce you to take more risks with your safety. ABS will
not prevent a skid caused by abrupt steering movements,
or attempting to corner too quickly.
• Always maintain a safe following distance from other cars relative to the road surface and weather conditions.
Obey all traffic laws.
• Risk of accidents due to inappropriate speed cannot be reduced even by ABS. The driver is responsible for the
judgement of safe speed.
• The control unit of the ABS is set for standard tire size. If non-standard Tires are fitted, the control unit may mis-
interpret the speed of the car, because of the variant data
it receives from the wheel speed sensors. Fitting non standard tires would seriously affect the performance of
your ABS.
• The amber ABS tell tale in the instrument panel should light for about 4 seconds following ignition switch on, and
then go out. If the lamp remains lit, or comes on whilst driving, a fault in the anti-lock brake system is indicated.
The base brake system will continue to operate normally,
but without ABS. The car can be driven but should be
checked and repaired at the earliest opportunity.
• Activation of the ABS will vary according to the level of grip available at the Tires. On dry surfaces, activation
will occur only with a high pedal pressure. On slippery
surfaces, only a low pressure will be needed.
• On loose or uneven surfaces, such as gravel or snow, a car with ABS may need a longer stopping distance. Allow
a greater distance between cars in these conditions.
Driving Controls
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Brake Fluid ReservoirUnder normal circumstances, there is no requirement for
routine 'topping up' of the brake master cylinder reservoir. A
visual safety check is all that is required. Every week, check the level of fluid in the brake fluid reservoir
located in the driver’s side of the front services compartment, beneath the access panel: Without disturbing the filler cap,
check that the level lies between the 'MA X' and 'MIN' marks moulded on the translucent reservoir body. As the brake pads
wear, the level will drop gradually from the 'MA X' mark towards the 'MIN', but if the level drops rapidly over a short period, have
your Lotus dealer investigate without delay. If the level is found
to be below the 'MIN’ mark, it is likely there has been some fluid loss, and that air will have entered the hydraulic system. The car
should not be driven until the fault has been investigated and rectified. Note that a single reservoir is used to supply both of
the independent hydraulic circuits for the front and rear brakes, and also serves the hydraulic clutch release circuit. If any fluid is to be added, first clean the surrounding area
to guard against dirt ingress before unscrewing the reservoir cap.
NOTICE: Spilled brake fluid can seriously damage the car’s paintwork and some plastic compoments, for example, the side
marker lamps. Take suitable precautions to protect the paintwork
from contamination, and in case of spillage, rinse the affected area with water immediately: DO NOT WIPE.
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BRAKE FLUID RESERVOIR CAP
Servicing & Maintenance
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Always use the size and type of tires recommended
in this handbook.
• Using incorrect tires or tires which are excessively worn or improperly inflated can cause a crash in
which you can be killed or seriously injured.
• Please note your car is not fitted with a low tire pressure tell tale lamp so it is especially important
that you regularly check the tire pressures.
When driving on wet roads, surface water is squeezed
out from between the tire and road. However excessive
speed or water depth can overwhelm the water clearing capability of the tread and lead to a condition called 'aq
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uaplaning' or ‘hydroplaning’, where the tire rides on a film of water and provides little or no grip on the road surface,
leading to a loss of control. This condition is more likely
to occur with worn tires having little depth of tread, or with incorrect tire pressures. Drivers should keep a vigilant check on tire wear and condition, and moderate their
speed in adverse weather conditions.
Tire Care Wear indicators are moulded into the bottom of the
tread grooves at intervals around the tire, indicated by small pointers on the outer tread blocks. The tires should
be replaced before being worn to this minimum legal
tread depth. The cold tire pressures should be checked every week,
or every 1,000 miles (1,700 km), whichever is the sooner,
and corrections made as necessary. See ‘Technical Data’
at the back of the handbook for tire pressures. For track
use, tire condition and pressures should be checked be
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fore each run. Under-inflation will cause excessive wear, rapid deterioration of the tire sidewalls and heavy steering,
whereas over-inflation results in a hard ride and increased susceptibility to tire damage. Both conditions will cause a degradation in the handling qualities. It is important that the tire pressures are adjusted only
when the Tires are cold (when the car has been standing for a minimum of 3 hours, or driven less than 1 mile), as the pressures may increase by 0.3 - 0.5 bar (4 - 8 lb/in²)
when the Tires are warmed to normal running temperature.
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Use a good quality proprietary tire pressure gauge and always replace the tire valve dust cap to prevent the
ingress of dirt and moisture into the valve, which could cause leakage. Many fuel filling stations provide tire inflation facilities,
which specific usage instructions should be carefully fol
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lowed. For tire pressure information, refer to ‘Technical
Data’ or the Certification Label on the driver’s door jamb
(see page 121).
Replacement Tires When replacing tires, refer to the ‘Technical Data’ sec
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tion in this handbook, or consult your dealer to check the current Lotus specification and recommendations. Do not
use tires which differ from these specifications.
WARNING: Note that some tread patterns are directional, so
that the tire must be fitted onto the wheel with regard
to which side of the car the wheel is to be used. In
these cases, a direction of rotation arrow is included in the tire sidewall markings.
When balancing the wheel and tire assemblies, the
wheels should be located by the centre spigot hole - NOT by the wheel bolt holes. In order to maintain the correct
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Direction of rotation arrow
Tires & Wheels
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characteristics and climates.
Traction - AA, A, B, C: The traction grades, from highest to lowest are: A A, A, B, and C. They represent the tires ability to stop on wet pavement as measured under con
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trolled conditions on specified government test surfaces of asphalt and concrete. A tire marked ‘C’ may have poor
traction performance.
WARNING: The traction grade assigned to this tire is based
on braking (straight ahead) traction tests and does
not include acceleration, cornering, hydroplaning, or
peak traction characteristics.
Temperature - A, B, C: The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when
tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire
life, and excessive temperature can lead to sudden tire fail
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ure. The grade ‘C’ corresponds to a level of performance
which all passenger car Tires must meet under Federal Motor Car Safety Standard No. 109. Grades ‘B’ and ‘A’ represent higher levels of performance on the laboratory
test wheel than the minimum required by law.
WARNING: The temperature grade for this tire is established
for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive load
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ing, either separately or in combination, can cause
heat buildup and possible tire failure.
These grades are moulded onto the sidewalls of pas
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senger car tires. All passenger car tires must conform to Federal safety requirements in addition to these grades.
Tire Placard/Label The tire and loading Information label stuck on the
driver’s door jamb specifies the correct size and pres
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Tires & Wheels
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sure of tires to be used on the Elise. It also specifies the total weight the car can carry, called the car capacity
weight. This includes the weight of driver, passenger and luggage. Also to be found on the driver’s door jamb is the Cer
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tification label (‘Manufactured by Lotus Cars Ltd.’) which stipulates the Gross Car Weight Rating (GV WR). The
GVWR includes the weight of the car, occupants, fuel and luggage. Never exceed the GVWR or the Gross Axle
Weight Rating (GAWR) for either the front or rear axle. The maximum load which may be carried in the rear luggage compartment is 110 lb (50 kg). Note that the Elise is not designed to tow a trailer, and no such attempt should be
made.
WARNING: Do not exceed the GVWR, or front or rear GAWR.
Exceeding these limits may cause unstable handling or car or tire damage which could cause a crash
in which you or others could be seriously injured or killed.
The Elise should never be used to tow a
trailer.
Federal Motor Car Safety Standards require Lotus to in
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clude the following verbatim statement in this handbook:
Steps for Determining Correct Load Limit:
1) Locate the statement “The combined weight of occupants and cargo should never exceed XXX pounds”
on your car’s placard.
2) Determine the combined weight of the driver and pas
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senger that will be riding in your car.
3) Subtract the combined weight of the driver and pas
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senger from XXX kilograms, or XXX pounds.
4) The resulting figure equals the available amount of cargo and luggage load capacity. For example, if the
“XXX” amount equals 1400 lbs. and there will be five 150 lb. passengers in your car, the amount of available cargo and luggage load capacity is 650 lbs. (1400 - 750
(5 x 150) = 650 lbs.)
Note: Maximum load to be carried in the Elise rear lug-
gage compartment is 110 lb (50 kg).
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5) Determine the combined weight of luggage and cargo being loaded on the car. That weight may not safely exceed the available cargo and luggage load capacity
calculated in Step 4.
6) Your Elise should never be used to tow a trailer
In the case of the Elise:
• The combined cargo and luggage load capacity is 551
lb (250 kg).
• The maximum load in the luggage compartment is 110
lb (50 kg).
• The maximum combined weight of the driver and pas
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senger is 441 lb (200 kg).
WARNING: Exceeding any of the above loadings may cause
unstable handling or car or tire damage which could cause a crash in which you or others could be seri
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ously injured or killed.
Tire Markings Designation:Example; Yokohama Advan A048 195/50 R16 84W
Yokohama = manufacturer. Advan A048 = tire model. 195 = nominal section width in mm. 50 = height of tire cross-section expressed as percentage of width. R =
radial construction. 16 = rim diameter in inches. 84 =
load capacity index, indicating the load in kg the tire can carry at the speed corresponding to the speed rating. W
= speed rating indicating the speed (in this case 168 mph) at which the tire can carry the load corresponding to the load capacity index.
Tire Identification Number: On the left hand sidewall as fitted to the car. Commences with DOT (Department of
Transpor tation) followed by a two digit manufacturing plant code, a two digit tire size code, a three digit tire construction code, and a four digit date code for the week
and year of production.
‘LTS’
: Indicates Lotus specific construction.
Tires & Wheels
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