Lotus Elise Service Notes page 598

Lotus Service Notes
Exige
Breather hoses, vacuum Pines & IAC
To MAP sensor
& intake resonator
control system
Purge rail
To charcoal
canister purge
port
Breather
connection
to backplate
IAC connection
to backplate
IAC stepper motor
Fuel pressure
regulator valve
connection
IAC connection to underside
of throttle bodies
Air Cleaner: The Exige uses two identical Pipercross conical foam air cleaner elements contained within the air
intake trunking; a primary filter mounted at the inlet end of the trunking, and a secondary filter mounted
immediately after the resonator valve at entrance to the airbox. When the vehicle is operated in a relatively
clean environment, the primary filter should be cleaned every 'A' service, and the secondary filter every 'B'
service, but where a dusty or smog laden atmosphere prevails, more frequent servicing will be required dependent
on the level of pollution. When removing either filter, take care not to contaminate the engine side of the duct
or airbox with dirt. Follow the filter manufacturer's cleaning instructions:
1. Dislodge any large embedded dirt by tapping the filter gently. Brush with a soft bristle brush to remove other
dirt.
2. Spray Pipercross foam air filter cleaner liberally onto the entire filter. Let soak for 10 minutes.
3. Never use other cleaning agents e.g. gasoline, caustic strong detergents or solvents. Never use steam
cleaners or a high-pressure car wash. Doing so will invalidate the warranty.
4. Rinse off the filter with low-pressure tap water from the clean side to the dirty side. This will remove dirt and
not drive it into the filter.
5. Always let excess water drain from the filter Let the filter dry naturally. Never use compressed air; open
flame or hot air dryers.
6. After cleaning the filter, Pipercross Dirt Retention Additive (DRA) must be re-applied. Pipercross DRA is a
very efficient high tack polymer. Never use motor oil, diesel fuel, ATF or WD40.
7. Re-install the filters and intake ducting.
Note that the intake trunking is marked with an arrow indicating the direction of airflow for optimum perform-
ance.
2000 / 03
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