Lotus Elise S1 Service Notes page 323

Lotus Service Notes Section JH
Do NOT use DOT 5 silicone fluid, or any fluid which has been exposed to the atmosphere for more than a
brief period, or any fluid suspected of being wet, dirty or contaminated. Do not overfill. Replace the filler cap
securely.
Some service operations, such as replacing brake pads, will result in the displacement of fluid from the
hydraulic circuit back into the reservoir. In order to prevent fluid overflowing from the reservoir, it may be neces-
sary to remove some fluid using a 'squeeze bulb' type tool.
Renewal of Brake Fluid
Brake fluid aborbs water from the atmosphere over a period of time (hygroscopic), resulting in a lowering of
the boiling point of the fluid, and corrosion of the hydraulic system. For optimum safety and brake performance,
the brake fluid should be renewed every twelve months.
The fluid may be changed and bled of air using pressure or vacuum assisted equipment, or standard
manual techniques. Each brake caliper is provided with a bleed nipple for this purpose. The clutch release
system hydraulic fluid should be changed at the same time.
JH.3 - FRONT BRAKE PAD REPLACEMENT
Pad thickness may be checked with the wheel removed without disturbing the caliper.
Alloy discs Iron discs
Standard pad thickness (excluding backplate); 10.0 mm 9.0 mm
Minimum pad thickness (excluding backplate); 2.5 mm 2.5 mm
If the thickness of any pad is below the specified minimum, the axle set of pads should be renewed. Note
that different brake pads are used for aluminium and iron discs.
Aluminium discs: These pads are identified by a stencilled number on the backplate commencing with 'BXDV If
desired, self adhesive anti-squeal overlays (A111J0122F) may be fitted to the pads after approx. 0.75mm of wear
has taken place, but some loss of pedal 'feel' will be incurred.
Iron discs: These pads are factory fitted with anti-squeal overlays and marked 'Brembo 07.5505.30/40'. The
overlay is assymetric and is marked with a directional arrow - ensure the arrow on all four pads points in the
direction of forward disc rotation.
1. To remove the brake pads; Remove the securing split pin and withdraw the lower of the two pad retaining
pins, taking precautions to restrain the anti-rattle spring. Remove the second retaining pin and the anti-rattle
spring plate. Withdraw the pads from the caliper. Measure the lining thickness and renew the axle set of
pads if any lining is below 2.5 mm.
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