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Battery sealing plugs
On batteries with visible min and max markings, electrolyte level only needs to be checked visually.
Electrolyte level must be between min. and max. markings.
On batteries where the outer min. and max. markings are difficult to see or the visibility of the electrolyte
level cannot be guaranteed due to the opaque battery housing, the sealing plugs must be removed. Then it
is possible to check electrolyte level by a visual inspection of the battery interior.
The electrolyte level must meet the inner electrolyte level marking (plastic bar). This corresponds to the
outer max. mark.
TIRES: CHECKING CONDITION, WEAR PATTERN AND TREAD DEPTH AND ADJUSTING TIRE
PRESSURE.
Tires, checking
Delivery inspection
Check running surfaces and side walls for damage, remove foreign materials, if necessary.
Inspection service
eye color display.
If batteries are equipped with plugs for production reasons, these are
covered with plastic film.
Before performing visual check, carefully and lightly knock magic eye with
handle of a screwdriver.
This removes air bubbles.
Read "magic eye" color display.
NOTE:
If electrolyte level is too low, battery loses capacity (loses performance)
because the cell plates dry out. If the cell plates are not covered by
electrolyte, the plates and plate bridges start to corrode causing the
function of the battery to diminish. After a while the battery does no longer
function. The battery becomes useless.
WARNING:
If the electrolyte level is below them in. marking, the battery must be
replaced! --> - 27 - STARTER, GENERATOR, CRUISE CONTROL
NOTE:
For reasons of safety only tires of same type and tread pattern should be
fitted on a vehicle!
On All Wheel Drive vehicle tires of the same type and tread pattern must
be used. Otherwise the center differential may be damaged.
2008 Audi A6 Quattro
Maintenance Maintenance Procedures
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Page 9