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Lotus Evora. Instruction - part 63

Lotus Service Notes

Section MR

Component Location

Other electrical components may be found as follows:

CDL module; passenger side of scuttle beam vertical face.

Alarm components; see sub-section MR.1.

Horns; one beneath the front end of each front longeron, aligned with apertures in the air intake duct.

Accessible after removal of front undertray.

Ambient air temperature sensor; mounted in RH side of the air intake duct, clipped to the undertray pylon.

Accessible after removal of front undertray.

Audio speaker cross-over units; one on each end of the scuttle vertical rear face.

Forward crash sensor; one on the outboard face of each front subframe longeron, towards the front. Ac-

cessible after removal of the front undertray.

Engine management components; see section EMR.

TPMS module; in boot, on back of LH wheelarch.

Reversing camera module; in boot, on LHS of rear transom.

MR.7 - AUDIO EQUIPMENT

Operating instructions for the unit fitted are contained in a separate booklet supplied by the equipment

manufacturer. The audio set will operate with the ignition key inserted, and in any of its positions, including

the ‘0’ lock position.

On cars fitted with a 2-DIN audio system and 175mm display screen, the following features are also in-

cluded:

AM/FM radio;

CD audio;

DVD video, operable only with the parking brake engaged;

i-pod to i-pod video interaction/control;

MP3 player;

Satellite navigation;

Integrated microphone for Bluetooth phone operation;

When set is switched on, automatic display from reversing camera when reverse gear is engaged.

Note that the screen should be cleaned occasionally with a lint free, spectacle polishing cloth.

Note

•

The ‘satnav’ system includes a road network safety camera database, which may be activated at the

owner’s request when the system is set up. If using the vehicle in territories where such a feature is illegal,

it is the owner’s responsibility to ensure that the system is de-activated.

•

Note that the quality of radio reception will vary according to audio equipment fitted and local area signal

strength.

Speakers: A main speaker is fitted into each of the door trim panels, and a high frequency ‘tweeter’ incorporated

into each end of the dash fascia panel. In addition, some cars are fitted with a single sub-woofer, low freqency

speaker in the right hand rear quarter trim panel.

Door speakers - Alpine LUK-SB01B (4-speaker base spec.):

145mm aperture, 63mm depth

Door speakers - Alpine LUK-SB02T: (4/5-speaker high spec.):

145mm aperture, 63mm depth

Sub-woofer - Alpine SWE 843 (5-speaker high spec.):

183mm aperture, 111mm depth

Tweeters - Alpine LUK-ST01:

42mm aperture, 12mm depth

Security: Some audio sets feature a removable front panel; For details, refer to the set manufacturer’s litera

ture.

Lotus Service Notes

Section MR

MR.8 - BATTERY, BATTERY CABLES & EARTHING POINTS

Battery

WARNING: POISON/DANGER - CAUSES SEVERE BURNS - KEEP OUT OF REACH OF CHILDREN.

Contains sulphuric acid - avoid contact with skin, eyes or clothing. If in contact with skin or eyes; flush

with copious amounts of water. Remove contaminated clothing. Seek immediate medical attention. If

ingested; seek immediate medical attention . Do not induce vomiting or give fluids to drink.

Batteries produce explosive gases. Keep sparks, flames and cigarettes away. Ventilate when charging

or using in enclosed space. Always shield eyes when working near batteries.

Battery Access

The 72 Ah VARTA BLUE dynamic battery is located at the left hand front of the rear luggage compartment,

protected by a plastic cover. No routine inspection or topping up of the electrolyte is required, but at intervals

specified in the Maintenance Schedule, the battery terminals should be checked for security and condition,

and protected with petroleum jelly.

To remove the battery, release the three

thumbscrews and remove the plastic cover.

Release the two screws and remove the

retaining clamp from the base of the battery.

Withdraw the battery sufficiently to allow the

cables to be disconnected (see below).

When lifting out the battery, be aware

of the considerable weight, and take all ap-

propriate precautions to safeguard personal

health.

Refit the battery, with its terminals to

the rear, by reversing the above procedure.

Remember to push on the breather pipe (if

applicable).

Disconnecting the Battery

If the battery is to be disconnected, the following precautions should be taken:

If the vehicle is fitted with security coded audio equipment, check that the code is available for entering

after battery reconnection.

ii) Wait for at least ten seconds after switching off the ignition to allow the engine management system to

adjust the setting of some components ready for re-starting.

iii) Ensure that all electrical loads (e.g. lights) are switched off.

iiv) Check that the security alarm is disarmed. If the battery is disconnected when armed, the alarm will be

triggered.

v) Disconnect the

negative (earth; black; ‘-’) battery cable first, and re-connect last. If the battery positive

terminal is inadvertently earthed (e.g. when using a spanner) whilst the negative terminal is still connected,

the resultant short circuit with heavy sparking and current flow could cause serious burns.

Battery Reconnection

Check again that all electrical loads are switched off.

ii) Connect the positive battery cable first, followed by the negative (earth) cable.

iii) Be aware that the vehicle security alarm may be triggered by the action of battery re-connection. Have

the alarm transmitter key ready to disarm the alarm (see ‘Vehicle Security Alarm’).

iv) After reconnection, a change in the engine performance characteristics may be noted for a period whilst

the computer controlled engine management system ‘re-learns’ some of its settings.

v) If necessary, enter the security code into audio equipment.

Battery Charging

Under conditions of normal daily use, it should not be necessary to use external battery charging equip-

ment. In a low usage regime, however, it is important to maintain the charge state of the battery using a trickle

charger, or an automatic battery management conditioner such as that available through Lotus After Sales.

Check battery terminal symbols;

Orientation may

differ Positive

terminal

Negative

terminal

Retaining

clamp

plate

BATTERY ACCESS (cover removed)

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Lotus Service Notes

Section MR

Starting difficulties may be encountered after an unattended period of 3 weeks. A battery conditioner is able to

continuously monitor battery charge state and switch on and off automatically in order to maintain the battery

in a fully charged condition without danger of damage through overcharging.

If the battery becomes discharged to the extent that the car cannot be started, the recommended course

of action is to fit a substitute battery whilst the original battery is trickle charged. If, in an emergency, the car

has to be ‘jump’ started, the subsequent conditions of car use may not allow for sufficient alternator charging of

the battery to achieve a fully charged state. The battery should be trickle charged by external means until 12.8

volts is recorded, which process may take 24 hours or longer. Putting the battery into service at a lower state

of charge will reduce the time period for which the car can be parked without subsequent starting concerns. A

battery left in a fully discharged state for a prolonged period, may not be recoverable to its original condition.

Unless using an automatic battery management charger, the battery should be removed from the car for

recharging, to a well ventilated area to avoid a build up of fumes in the luggage compartment and to prevent

damage to the car's electrical system. Observe the safety precautions listed above when removing the bat-

tery and take care to avoid sharp knocks or shocks, keeping the battery as upright as possible. Beware of the

considerable weight of a battery, and take necessary precautions against personal injury.

The recommended bench charge rate is 4 amps. When the battery is fully charged (12.8 volts), allow it

to stand for an hour before refitting into the battery well and reconnecting the leads - see above.

Quiescent Drain

With a fully charged battery, a car with no aftermarket electrical equipment fitted, all electrics switched

off, and the alarm system either armed or disarmed, will have a quiescent current drain of between 27 - 32 mA

dependent on audio and sat. nav. options. Under normal conditions, this should allow a park period of over

four weeks before starting difficulties may be encountered.

If current drain is found to significantly exceed specification, the cause must be established by isolating

components (e.g. at fusebox) and rectifying faults as necessary.

Battery Cables

Two red cables are connected to the battery positive post. One leads to the solenoid on the starter motor.

A second cable leads to the positive post fixed to the back of the cabin bulhead in the LHR wheelarch area,

and includes an 'in-line' 150A fuse. This post is linked via a cable routed through the LH sill area to the front

mounted positive post on the top of the passenger side scuttle, and from here to the main fusebox/relay panel

at the front of the passenger footwell.

A braided earth cable connects the negative battery terminal to the chassis rear earth point, on the inside

face of the LH siderail, at the LHF of the engine bay, accessible from beneath. Two further cables link this point

to the transmission casing, and to the rear fusebox and ECU mounting bracket at the LHR of the cabin.

WARNING: Before disconnecting a live feed cable from either post, first disconnect the earth cable from

the battery. Be aware of the danger of short circuits and sparks caused by a live feed cable contacting

the chassis or other metal components.

The rear positive post is mounted on a bracket which also secures the left hand end of the evaporative

emissions canister, and is accessible with the wheelarch liner and/or rear clamshell removed. Special care

should be taken to prevent sparks in this area. When re-connecting the rear positive post, note that two spac-

ers A075W4020Z should first be fitted onto each stud, before each pair of cables is assembled back to back,

with the battery and front fusebox cables on the front stud, and the alternator and rear fusebox cables on the

rear stud. Tighten the M8 retaining nuts to 16 Nm.

MR.9 - WIPER MECHANISM

The windscreen wiper mechanism comprises a uni-directional motor with an external rotary link, a con-

necting rod, and a pair of actuating links which join the connecting rod to the arms of the wiper spindle. This

mechanism provides the wiper with a motion which is slowed at each end of its travel in order to ease the

inertia loads during direction changes, to the benefit of refinement and durability. The motor and wheelbox are

mounted on a single pressed steel bracket which is bolted to the underside of the windscreen frame.

Lotus Service Notes

Section MR

To remove the wiper mechanism:

1. Remove the front clamshell (see sub-section BV.4).

2. Remove the wiper arm.

3. Remove the 4 retaining screws, and withdraw the windscreen gutter with drain tubes.

4. Unplug the harness connector from the wiper motor. Release the 4 cap head screws around the wiper

spindle that secure the mounting bracket to the windscreen frame, and the single screw at the motor end

of the bracket. Withdraw the wiper mechanism.

5. Re-assemble in the reverse order to removal, torque tightening the bracket bolts to 20 Nm.

Note that no service parts are offered for the wiper mechanism. Excessive wear in any part of the mecha-

nism, or motor is rectified by renewal of the complete assembly.

MR.10 - HARNESS ROUTING

The main harness runs from the main fusebox/relay station at the front of the passenger footwell, up to

the center underside of the scuttle, across to the passenger side and through to the top of the scuttle. Then it

runs across the full width of the scuttle to supply all the fascia components and to each of the separate door

harnesses. At the centre of the front bulkhead, a branch of the main harness penetrates the bulkhead and di-

vides along each side to supply the HVAC functions, ABS, lighting and other front mounted electrical equipment.

From the same junction at the front bulkhead, a further branch runs down the centre of the cockpit, beneath

the gearchange mounting channel to supply the fuel pump, with branches also running to each side behind

the seat mounting front cross-member and back to each rear quarter area. The RH branch supplies the roof

harness near the 'B' post area and continues through the rear bulkhead to supply the tailgate and rear lighting

harnesses. The LH branch connects to the engine management ECU and engine harness, then continues

through the bulkhead to supply the parking sensors and TPMS.

Main harness Roof harness

Tailgate harness

Rear

harness

Main fusebox/

relay station Door Rear fusebox

harness relay station

Engine harness

pl1701eg

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