2006 Alfa Romeo 166 differential

155 VEHICLE INACTIVITY
If the vehicle is to be left inactive for
long periods the following precautions
should be noted:
– House the vehicle under a cover in a
dry and possibly ventilated place.
– Engage a gear.
– Release the handbrake.
– Clean and protect the paintwork by
applying silicon wax.
– Cover the rubber windscreen wiper
blades with talcum powder and raise
them off the glass.
– Open the windows slightly.
– Cover the vehicle with a cloth or per-
forated plastic cover. Do not use compact
plastic covers which prevent the humidity
on the surface of the vehicle from evapo-
rating.
– Inflate the tyres to a pressure of 0.5
bars above normal. If possible rest the
tyres on wooden planks and periodically
check the pressure.– Switch off the alarm system (if fit-
ted) with the remote control, then deacti-
vate it with the emergency key.
– Disconnect the terminals from the
battery poles (negative pole first) and
check the battery charge. When the vehi-
cle is in storage, this check should be car-
ried out once a month. If the no-load volt-
age is less than 12.5V, recharge the bat-
tery.
REMOVING FROM STORAGE
Before using your vehicle after a long
period of inactivity the following opera-
tions should first be carried out:
– Do not dust the outside of the vehi-
cle.
– Visually check that there are no
leaks (oil, brake and clutch fluid, engine
coolant etc.).
– Replace the engine oil and filter.
– Check:
Gearbox-differential oil level
Brake-clutch fluid level
Level of engine coolant fluid.– Check the air cleaner and replace if
necessary.
– Check tyre pressure and ensure that
they are not damaged, cracked or cut. If
they are they must be replaced.
– Check the state of the drive belts in
the engine bay.
– Connect the cables of the battery af-
ter checking that the charge is adequate.
– Re-activate the alarm system, if fit-
ted, using the emergency key.
– With the gear lever in neutral start
the engine and allow the engine to run
for a few seconds whilst repeatedly
pumping the clutch pedal.

205
thousands of kilometres 20 40 60 80 100 120 140 160 180
Change fuel filter (diesel versions)•••••••••
Change air cleaner cartridge (petrol versions)••••
Change air cleaner cartridge (diesel versions)•••••••••
Check and top up, if required, fluid levels (brakes/hydraulic clutch, power steering,
windscreen washer, battery, engine coolant, etc.)•••••••••
Replacement of timing gear drive belt (*) and Poly-V accessory drive belt•
Replacement of spark plugs (petrol versions)•
Check operation of engine control systems (through diagnostics socket)••••
Check manual gearbox and differential oil level (petrol versions)••
Change engine oil and oil filter •••••••••
Change brake fluid (or every 24 months)•••
Check dust/pollen filter•••••••••
(*)Or every 4 years in harsh conditions (cold climates, stop and go city traffic).
Or every 5 years, regardless of the mileage.

211
PROTECTIVE SHIELD UNDER
ENGINE
The car is fitted with a protective shield
under the engine.
IMPORTANTWhen changing the en-
gine oil and filter, checking and changing
the gearbox and differential oil, this pro-
tection should be removed. This operation
should be carried out by Alfa Romeo Au-
thorized Services.
CHECKING ENGINE OIL LEVEL
Fig. 3:3.2 V6 24V version
Fig. 4:JTD 20V Multijet version
The engine oil level should be checked
when the vehicle is standing on a level
surface a few minutes (about 5) after the
engine has been switched off.
Remove the dipstick (A), clean it, then
re-insert it completely, remove it once again
and check that the level is between the
MIN and MAX marks on the dipstick.The interval between the MIN and MAX
marks corresponds to approximately 1
litre of oil.
Max. engine oil consumption is usually
400 grams every 1000 km.
When the car is new, the engine needs
to run in, therefore the engine oil con-
sumption can only be considered sta-
bilised after the first 5000-6000 km.
fig. 3 - 3.2 V6 24V version
424PGSm
fig. 4 - JTD 20V Multijet version
A0D0113m

236 SERVICING
Unleaded petrol with no less than 95 R.O.N.
(EN228 Specification)Diesel fuel for motor vehicles
(EN590 Specification) 3.2 V6 24V JTD 20V
Multijet
Fuel
Capacity of fuel tank 69 litres 69 litres– reserve of 9 litres 9 litres
Engine oil (quantity
for periodical change, including
the oil filter change) 5.90 litres 5.0 litres
Gearbox/differential oil
(except versions with electronic
automatic gearbox) 2.0 litres 1.45 litres
Engine cooling system 10.3 litres 9.1 litres
Windscreen washer fluid
reservoir capacity 7 litres 7 litres

244
Mechanical gearbox and
differential 3.2 V6 24V engines
Mechanical gearbox and
differential JTD 20V Multijet
engines
Power steering
CV joints
Hydraulic brake and clutch
controls
Cooling circuits
Proportion: 50% water and
50% Paraflu UP
To be used diluted or undiluted TUTELA CAR
TECHNYX
TUTELA CAR
MATRYX
TUTELA GI/A
TUTELA STAR 500
TUTELA TOP 4
for ALFA ROMEO
PARAFLU UP
TUTELA
PROFESSIONAL SC 35 Synthetic-based oil, grade SAE 75W-85,that passes API GL 4 Plus specifications
100% synthetic oil, grade SAE 75W-85, that passes API GL 4 specifications
Lubricant for transmissions that passes "ATF DEXRON II D LEV" specifications
Lithium-soap-based grease with molybdenum bisulphate, NLGI 2 consistency
Synthetic fluid, F.M.V.S.S. n. 116, DOT 4, ISO 4925, SAE J-1704,
CUNA NC 956-01
Protective with antifreeze action for cooling systems, red colour, based on
inhibited monoethylen glycol and organic formula, that passes
CUNA NC 956-16, ASTM D 3306 specifications
Mixture of alcohol and surfactants CUNA NC 956-11
Use Fluid and lubricant specifications Genuine fluids Applications
for correct car operation and lubricants
Lubricants and greases
for transmission
Brake fluid
Protective agent
for radiators
Windscreen and rear
windowwasher fluid
IMPORTANT Do not top-up or mix with products having different properties