Discovery 2. Manual — part 395
MAINTENANCE
PROCEDURES
10-7
Road wheels
Remove
1. Mark the wheel to stud relationship to ensure
that the wheels are refitted in the same
position.
2. Loosen wheel nuts. Raise the vehicle to a
wheel-free condition and remove the wheel
nuts.
Tyres
Check
1. Check tyres for compliance with manufacturer's
specification; visually for cuts, lumps, bulges,
uneven tread wear and depth.
2. Check tyre pressures, condition and tread
depth. Measure the tread depth across the
width of the tyre and around the circumference.
Brake pads, discs and calipers
Check
1. Check front and rear brake pads for wear,
ensure all pads are wearing evenly.
2. Check brake discs for signs of cracking,
excessive scoring or oil contamination.
3. Check calipers for signs of fluid leaks.
4. Clean excessive deposits of brake dust from
pads, calipers and disc shields using brake
cleaner.
Road wheel speed sensors
Inspect
Front wheel
Rear wheel
1. Inspect each sensor harness for damage.
MAINTENANCE
10-8
PROCEDURES
Brake fluid
Replace
1. Replace brake fluid.
Fuel filter - diesel engine
Replace
1. Replace filter element.
Td5, REPAIRS, Element - fuel filter.
Fuel filter sedimenter
Drain
1. Position suitable container beneath fuel filter.
2. Disconnect multiplug from sedimenter.
3. Rotate sedimenter anti-clockwise until water
flows from drain tube.
4. Allow to drain until diesel fuel flows from drain
tube.
5. Rotate sedimenter fully clockwise.
6. Connect multiplug.
Road wheels
Refit
1. Apply anti-seize compound to wheel hub
centre.
2. Refit road wheels to original hub position.
Tighten wheel nuts to 140 Nm (103 lbf.ft).
Radiator/Intercooler
Check
1. Visually check radiator/intercooler for external
obstructions, remove debris.
2. Visually check fan blades for damage.
Ambient air Temperature and pressure
sensor
Check
1. Check ambient air temperature and pressure
sensor for damage.
MAINTENANCE
PROCEDURES
10-9
Doors, bonnet and fuel filler flap
Check
1. Check operation of each door, door lock,
bonnet catch and fuel filler flap. Ensure doors
close securely.
Lubricate
1. Lubricate door locks, hinges, check straps,
bonnet catch and fuel filler flap.
Air suspension intake filter
Check
1. Check condition of filter and that filter is clean,
replace if necessary.
Anti-freeze
Replace
1. Replace anti-freeze.
ADJUSTMENTS, Drain and refill.
ADJUSTMENTS, Drain and refill.
Cooling system
Check
1. Check cooling, intercooler and heating systems
for leaks; hoses and oil pipes for security and
condition.
2. Check accessible hose clips for tightness.
3. Check coolant level, top-up if necessary.
Top-up
1. With engine cold, remove expansion tank filler
cap.
2. Top-up with recommended mixture of coolant
until level reaches mark on expansion tank.
LUBRICANTS, Anti-Freeze Concentration.
3. Fit expansion tank filler cap.
MAINTENANCE
10-10
PROCEDURES
Spark plugs - V8 engine
Replace
Take great care when fitting spark plugs not
to cross-thread plug, otherwise costly
damage to cylinder head will result. It is
essential that correct grade of spark plugs
are fitted. Incorrect grade of spark plugs
may lead to piston overheating and engine
failure. Use only approved spark plugs, use
of unapproved spark plugs may cause the
misfire detection system to malfunction.
1. Disconnect battery earth lead.
2. Noting their fitted position, disconnect ht leads
from spark plugs.
3. Remove 8 spark plugs.
4. Ensure that gap of new spark plugs is 1.0
±
0.05 mm (0.040
±
0.002 in).
Do not attempt to clean or adjust gaps. If a
spark plug problem exists, try substituting
defective spark plug(s) with new one(s).
CAUTION: Do not attempt to clean or adjust
spark plug gaps. If a spark plug problem
exists, try substituting the defective spark
plug with a new one.
5. Fit spark plugs and tighten to 20 Nm (15 lbf.ft).
6. Connect ht leads to spark plugs.
7. Connect battery earth lead.
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