recommended oil AUDI S4 2008 Owners Manual

Driver information system
38Applies to vehicles: with battery power warning systemBattery power

If battery power drops to a level at which you may encounter prob-
lems when starting the engine, th e display will show the symbol

and the driver message Low battery charge: Battery will be charged
while driving .
Please bear in mind that the star ting ability of the engine may be
impaired while this message is shown.
Message comes on and goes out again
If the message appears in the displ ay after the ignition is switched
on or while driving, and goes out again after a period of time, the
battery has been charged up again sufficiently while the vehicle was
being driven.
Message comes on and does not go out
If the message appears in the displ ay after the ignition is switched
on or while driving, and does not go out again, the battery is not
being maintained at the proper power level. Starting reliability may
be impaired. You should have the battery checked by a qualified
workshop as soon as possible.
Engine oil level (without dipstick)

 Add oil, max. 1L. You may continue driving.
If the  symbol lights up in conjunction with this driver message,
add not more than 1 litre of oil at the next opportunity
⇒ page 259 .
Check engine oil level (with dipstick)

 Please check oil level If the
 symbol lights up in conjunction with this driver message,
please check the engine oil level as soon as possible ⇒page 258 .
Top up the oil at the next opportunity ⇒page 259 .
Engine oil sensor defective


Oil level ! Sensor defective
If the 
symbol lights up, take the vehicle to a qualified workshop
and have the oil level sensor checked. Until then it is advisable to
check the oil level every time you fill up with fuel ⇒page 258 .
Applies to vehicles: with diesel engine and diesel particulate filterDiesel particulate filter obstructed


Particle filter. See Owner's Manual
When the symbol

lights up you can assist the self-cleaning func-
tion of the filter by driving accordingly. You should drive at a speed
of at least 60 km/h (engine speed about 2,000 rpm) for about
15 minutes in 4th or 5th gear, or with the selector lever in position S
on vehicles with automatic gearbox*. As a result of the increase in
temperature the soot in the filter will be burned off. The symbol will
disappear once the cleaning proce ss has been completed success-
fully.
If the symbol

does not go out, please contact a qualified work-
shop and have the fault rectified.
For further information on the diesel particulate filter ⇒page 229 .
WARNING
It is essential that you adjust your speed to suit the weather, road,
terrain and traffic co nditions. The recommended driving speed
must never lead to the driver disregarding the traffic regulations.
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