oil AUDI A6 2011 User Guide
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Page 113 of 370
![AUDI A6 2011 User Guide On the road -_______________ __.
Switching the ignition on
-Press the [S TART] button once to the firs t stage to switch
on on ly the igni tion .
Starting the engine
-Step o n t AUDI A6 2011 User Guide On the road -_______________ __.
Switching the ignition on
-Press the [S TART] button once to the firs t stage to switch
on on ly the igni tion .
Starting the engine
-Step o n t](/img/6/57593/w960_57593-112.png)
On the road -_______________ __.
Switching the ignition on
-Press the [S TART] button once to the firs t stage to switch
on on ly the igni tion .
Starting the engine
-Step o n the bra ke.
Mov e the selector leve r to the P or N position ~& .
- Press the [START ] button to the seco nd stage to sta rt the
engine .
After a co ld eng ine is started, there may be a br ief per iod of increased
no ise because oil pressure m ust first build up in the hydraulic valve
adjusters. Th is is no rma l and no t a cause for conce rn .
If the engine does not start immediately, stop trying after 10 seconds
and then t ry to res tart the engine abou t 30 seconds later .
& WARNING
Never allow the eng ine to run in confined space s -danger of
asphy xiation.
0 Note
Avoid high engine speeds, fast acceleration o r heavy eng ine loads
wh ile the engine is st ill cold. This cou ld damage t he eng ine .
For the sake of the environment
Do not a llow the e ngine to warm up with the veh icle s tat ionary . St art
driving rig ht away. I n this way you avoid unnecessary emissions.
Con tro ls a nd e quip
m en t Vehicle
OP-eration
(I) Tips
If you open the d river 's door whe n the ignition is sw itched on, a
buzzer sounds and the message
Ignition is on appea rs i n the instru
me nt clu ster display. Ple ase swit ch the ign it ion off. •
Applies to v ehicles : w ith Co nven ience key
Switching engine off with the !STOP] button
- Bring yo ur ve hic le to a co mplete s top.
Fig. 103 Conv enien ce
ke y:
ENG INE ST OP
button
- Move t he se lector lever to t he P or N posit ion.
- Press the (STOP ] button~ fig. 103 .
Pressing the ! STOP] button once sw itches off the engine and t he igni
tion. If yo u press the
!S TO P] button again fo r more than 1 second,
the steer ing is locked, prov ide d that the selector lever is in the P posi
t ion ~& -
Emergency OFF function
If necessary, the engine ca n be switched off with the selecto r lever in
th e R, Do r S posit ions . To do so, step on th e brake pedal and press
and hold the
I S T OP I button (vehi cle spee d m ust be less than 6 mph
/ 10 km/h. .,,_
Vehicle care Do-it-yourselt service iTechnical data
Page 117 of 370

On the road Ill
----------------
• Please also exercise exceptional care when you drive up or down
steep ramps or drive over cu rbs or other obstacles, for which the
vehicle is not designed, because components of the vehicle close to
the ground, such as bumper covers, spoilers and suspension and
exhaust system components , may become damaged. •
Starting off with a trailer
To prevent rolling back unintentionally on an incline, do
the following:
- Keep the switch pulled and depress the accelerator . The
parking brake stays applied and prevents the vehicle from
rolling bac kward .
- You can re lease the switch once you are sure tha t you are
deve loping enoug h forward momentum at the wheels as
you depress the accelerator.
Depend ing on the we ight of the rig (vehicle and trailer) and the
sever ity of the incline, you may roll backwards as you start. You can
prevent ro llin g backwards by holding the park ing bra ke sw itch pulled
out and accelera ting - just as you would when starting on a hill with a
conventional hand brake. •
Emergency braking
In the event that the conventional brake system fails or
locks.
- Pull the switch and cont inue to pull it to slow your ve hicle
w ith the parking brake in an emerge ncy.
- As soon as you re lease the sw itch or acce lerate, the
braking process stops .
Controls and equip
ment Safety first
If you pull the switch and hold it above a speed of about 5 mph (8
km/h),
the eme rgency brak ing f unct io n is ini tia ted. The vehicle is
braked at all four wheels by activat ing the hydraulic brake system .
Brake performance is similar to making an emergency stop=>& .
So that emergency b raking is not act ivated by mistake, an aud ible
warning tone (buzzer) sounds when the switch is pulled. As soon as
the swi tch is released, or the accelerator pedal is depressed, eme r
gency braking stops.
& WARNING
Emergency braking should only be u sed in an emergen cy, when
the normal foot brake ha s failed or th e brake pedal i s ob structed.
Us ing the park ing b rake to perf orm emergency braking will slow
your v ehicl e as if you had made a full brak e app lic ation . Th e law s
of physics cannot be suspen ded even w ith ESP and it s associated
c omponent s (AB S, ASR , EDS ). In corn ers and when road or
weather condit ion s are bad , a full brake application can cause the
v eh icle t o skid or the rear end to bre ak awa y- r isking an a ccident. •
Driver messages in the instrument cluster
Caution : V ehi cle park ed too steep
Th is message appears whe n the parking brake is applied on an incline
that exceeds abo ut 30%.
I n this case the b raking power of the parking brake may
not be
adequate
to prevent the vehicle from rolling unintentionally.
Plea se re leas e park ing brak e
This message appears , when a gear is se lected and the accelerator
peda l is dep ressed - release the parking brake . .,
Vehicle care Technical data
Page 140 of 370

lffll.___A_ u_ d_i_ s_ id_ e_ a_s _s_ i_ s _t _________________________________________________ _
Deactivating
- Press the button again . T he indicator light o n the b utton
goes out.
The system works at speeds faster tha n 19 mph (30 km/h) .
& WARNING
• Imp roper reliance on the side assist system can cause collisions
and seriou s per sonal injury:
- Never rely only on s ide ass ist when changing lanes.
- Alway s che ck rear view mirror s to m ake sure that it i s safe to
change lanes.
• Side a ssist cannot detect all vehicles under all condition s
danger of accident!
• Side a ssi st cannot detect vehicle s in time to alert you when
they approach from beh ind at very high speed, or fall drop back
very quickly .
• The radar sen sor's
v is ion can be reduced or entirely blocked by
rain , snow, and heavy spray . This can result in side as sis t not
adequately detecting vehicle s or , in some cases, not detecting
them at a ll. Alway s keep an eye on the dir ection you are traveling
and the rele vant area around the vehicle.
• Please note that side assist indicates there are approaching
vehicles , or vehicles in you r blind spot, only after you r vehicle has
reached a driving speed of at lea st 19 mph (30 km/h).
• Side assist signal doe s not work around t ight corners (turning
radius les s than 328 feet , or 100 m).
• Side assist is no replacement for the driver 's full attention . The
driver alone is respon sible for lane change s and s imilar driving
maneuvers. Always keep an eye on the direction you are traveling
and the relevant area around the vehicle.
0 Note
• T o ensure that you do not adversely affe ct s ide as sist , do not block
the area on the rear b umper where the radar sensors are located with
fo reign objects (such as st ic kers or b icycle ra cks).
• Make s ure that the signal light on the o utside mi rror is not
bloc ked by stic ke rs or othe r items.
[I) Tips
• Side ass ist automatica lly deac tivates if it detects that the radar
sensors are blocked=>
page 144. The indicator light on the button
goes out.
• Th e area on the bumper w he re the radar sensors are located must
c ons istent ly rema in free of snow, i ce, a nd he avy soiling so that s ide
assist can function properly. Follow the add itiona l notes on
=>
page 144.
• Add it iona l tinting on t he front side windows can ma ke it harder to
see and correctly u nders tand the s ig nal light on the outs ide mirro r.
• For Decla ration of Compliance to United States FCC and Industry
Canada regulations=>
page 349. •
Applies to vehicl es : w it h side ass ist
Sensor detection area
, D i
Fig. 131 S chem ati c
illustrat io n : S ensor
detection are a
~
Page 248 of 370

Intelligent technology!_ _______________________________________ _
Low brake fluid l evel
Ma lf u nctions can occ ur in the brake system if the brake fluid level is
too low . T he brake flu id level is monitored e lec tron ically .
Brake lining wear statu s
Brake lining wear may be checked by visua l inspection of the condi
t ion of t he brake pads through the open ings in the whee l. If neces
sary, the wheel may be removed fo r thi s inspection~
page 320,
"Changing a whee l".
& WARNING
• You should p erform braking maneuvers for the purpo se of
cleaning the brake system only if road condit ions permit. Other
road u sers must not be put at risk - you may cau se an accident!
• Befo re descending a steep grade, reduce speed and sh ift t rans
mission into a lower gear or lower driving range. Do not ride the
brakes or hold the pedal down too long or too often. Th is could
cause the brake s to get hot and diminish braking efficiency.
• Do not "ride the b rakes " by resting your foot on the pedal when
you do not intend to brake. Thi s may cau se the brakes to overheat ,
premature wear and increased stopping distance.
• Under certain climatic and operating condition s such as
passing through water, driving in heavy rain or after washing the
vehicle, the effectiveness of the brake s can be reduced. In winter ,
ice can accumulate on the brake pads , linings, discs and drums.
Carefully apply brakes for a test. Brake s will dry and ice coating s
will be cleaned off after a few careful brake applications.
• Driving for an extended period of time on salt-covered roads
without using your brakes can also affect brak ing efficiency. Clean
off accumulated salt co ating from brake disc s and pads with a few
careful brake applications.
• If you damage the front spoiler , or if you in stall a different
spoiler , be sure the air flow to the front brakes is not obst ructed.
Otherwi se the brake system could overheat reducing the effective
ness of the entire brake system .
& WARNING (c on tinued )
• Failure of one brake circuit will impair the braking capability
resulting in an increa sed stopping di stance. Avoid driving the
vehicle and have it towed to the nearest Audi dealer or qualified
workshop. •
Brake booster
The brake booster adds extra brakin g po wer.
Th e bra ke booster wor ks with vacuu m pressure which is created on ly
when the eng ine is running ~& .
& WARNING
• Never let the vehicle roll to a stop with the engine shut off.
• If the brake booster is not working , for e xample when towing
y our vehicle , or be cause the brake booster has somehow been
damaged , the brake pedal must be pressed considerably harder to
make up for the lack of boo ster assistance. •
Functioning of Anti-Lock Brake System
(ABS)
AB S prevents the wh eels from locking up under braking .
The ABS co ntrib utes effe ctive ly to ve hicl e con tro l s in ce i t preven ts t he
wheels from
locking when the brakes are applied . This means that the
vehicle remains steerable and is less likely to s kid.
With ABS you do not need to pump the brake. Just hold the brake
pedal down.
However, do not expect t he A BS to sho rten b raking di stan ce u nder all
circumstances. W hen driving on grave l or on newly fa llen snow on top
of icy s urfaces, braking distance may be even longer, therefore, under .,_
Page 254 of 370

Driving and environment
New brake pads
Remember that new brake pads do not have a f ull braki ng
e ff e ct during the first 250 miles (400 kilometers) after they
are i nsta lle d.
New bra ke pads have to be "b ur nished in " before they have opt ima l
grab=> &.
Dur ing the break -in period, you sho uld avoid putting severe loads on
the brakes . Severe loads incl ude, for example, sudden hard braki ng,
in particu lar at very high s peeds or, for examp le, on mountai n passes.
& WARNING
New brake pads don 't have the be st stopping power and must be
" broken -in " during the initial 100 to 150 miles (150 to 200 kilo
meters ) of normal cit y driving. You can compensate for thi s by
pressing th e brak e pedal more firmly. This also applies lat er wh en
new pad s are installed. n
Avoid damaging the vehicle
W hen yo u are d riving on poor roads, or over c urbs, steep ram ps, etc.,
ma ke c ert ain that low-lying pa rts such as spoilers and exhaust system
parts do not bottom out and get damage d.
Thi s is espe cially t rue for veh icle s wi th low-slung chass is (spor ts
chassis)* and fully loaded vehicles.
Driving through water on roads
Note the following to avoid vehicle damage when driving throug h
water, fo r example on flooded roads: •
The water must not be any higher than the bottom of the vehicle
body .
• Do not dr ive faster than wa lking speed.
& WARNING
After driving through water , mud, slush , etc. , the brake s may be
slow to take effect because of wet brake rotors and pads.
Dry the
brakes first by braking carefully to restore the full b rak ing effect.
0 Note
Vehicle components such as the engine, transmission, suspension o r
elect rical sys tem can be seve rely damaged by dr iv ing t hrough w ater.
[ i ] Tips
• Check t he de pth of the wa ter bef ore dr iv ing thro ugh it.
• Do not stop the vehicle, drive in reverse or switch the engine off
when drivi ng throug h wate r.
• Keep in mind that oncoming vehicles may create waves t hat raise
t he wate r level a nd make i t too deep fo r yo ur veh icle to drive th ro ugh
safe ly.
• Avoid dr iv ing through sa lt water because i t can cause corros ion. •
Catalytic converter
--
It is very impor tant that your emission control system
(catalyti c converter) is functioning properly t o ensure
that y our vehicle i s run ning i n an en viro nme ntally sou nd
man ner.
- A lways us e lead-fr ee gasoline=> page 273, "F uel supp ly".
- N ever run the tan k down all the way to empty. .._
Page 255 of 370

Driving and environment
------------------------------------------------'
-Nev er p ut too much motor oil in yo ur eng ine=:> pag e 284 ,
"A dd ing eng ine o il 't=:r.".
- N ever try to push- or tow-star t your ve hicle.
Th e catalyt ic conve rter is an eff ic ient "clean-up" device built into the
ex ha ust system of the vehicle . The catalytic converter burns many of
t he pollu tan ts i n the exhaust gas be fore they are re leased into the
atmosphere.
Th e excl usive use o f un leaded fuel is crit ic all y import ant for the lif e of
the catalytic converter and proper funct io ni ng of the engine.
& WARNING
• Do not park or ope rate the vehicle in areas where the hot
exhaust sy stem may come in conta ct with dry grass, bru sh, fuel
spill or othe r materi al which can cause a fire .
• Do not apply additional undercoating or rustproofing on or
near the exhaust manifold , exhaust p ipes , catalytic converter or
heat shi eld s. During driving, the sub stance u sed for und ercoating
could o verheat and cause a fire.
0 Note
• Be aware that just one tank filling w it h leaded fuel will already
ser iously degr ade the performance of the catalyt ic converter.
• Do not exceed the correct engine oi l level =>
page 284.
• Do not dr ive until t he fuel tank becomes com plete ly em pty. The
engine could misfire. Unbu rned fue l co uld also get into the exhaust
sys tem and t his co ul d cause t he ca talyt ic converter to ove rheat.
• Do not turn off the ignition while the vehicle is moving.
• Do not continue to operate your vehicle under these conditions, as
otherwise fuel can reac h the cata lyti c conve rter. This co ul d res ult in
over heat ing of the converter, requir ing its rep lacement.
• T o ass ure eff icient operat ion of the Emission Cont rol System:
Controls and equip
ment Safety first Vehicle operation
-
Have your vehicle maintained properly and in accordance with
t he se rvi ce recom menda tions i n your W arran ty
& Mai ntenan ce
booklet.
- Lac k of proper mai nte nance as well as im proper use o f th e
veh icle w ill impair the function of the emiss io n cont rol system and
c o uld lead to d amage.
~ For the sake of the environment
Even when the Emiss ion Contro l System is operating properly, the
exhaust gas can have a s ulfur-like exhaust gas smell under some
operating states . This depends on the sulfur content of the fue l being
used. Using a differe nt brand of fuel may help, or filli ng the tank with
lead-free super g rade gasoline. •
Operate your vehicle economically
and minimize pollution
General
Yo ur p ersonal sty le o f driving will determine the eco nom y
of your vehicle, as well as exhaust and noise levels .
Fuel economy, envi ronmenta l impact, and wear on your engine,
bra kes and tires la rgely depend on t hree fac to rs:
• your persona l dr iv ing style
• operati ng conditio ns
• technical limitations
If you an tici pat e wh at yo u nee d to do nex t an d drive eco no m ic ally,
you can easily cut your fuel consumpt io n by 10-15 percent. This
se ct io n w ill give you s ome tips on how yo u can he lp the env ironme nt
and your pocketbook .
Vehicle care Do-it-yourself service Technical data
Page 257 of 370

Driving and environment
------------------------------------------------'
The amount of oil used is related to engine load and speed.
It is normal for the oil consumption of a new engine to reach its
lowest value after a certain mileage has been driven .
You must drive your vehicle about 3,000 miles (5,000 kilometers)
before you can properly assess oil consumption.
This also applies to fuel consumption and engine output .
0 Note
• Have your vehicle maintained properly and in accordance with the
service recommendations in your Warranty
& Maintenance booklet.
Lack of proper maintenance as well as improper use of the vehicle w ill
impair the function of the emission control system and cou ld lead to
damage.
• Do not alter or remove any component of the Emission Control
System un less approved by the manufacturer.
• Do not a lter or remove any device, such as heat shie lds, switches,
ignition wires, valves, which are designed to protect your vehicle's Emission Contro l System and other important vehicle components. •
Fewer short trips
Fuel consumption will always be relatively high on short
trips .
-Try to avoid driving short distances with a cold engine.
The eng ine and catalytic converter have to reach thei r optima l oper
ating temperature
to reduce fuel consumption and noxio us em is
sions effectively.
Just after starting, a cold engine in a mid -size car only achieves a fuel
economy of 6-8 miles per gallon (30-40 l/l00km). After about a half
a mile, fuel economy climbs to 12 mpg (20 l/100 km). After about
2.5 miles (4 km), the engine is at its proper operating temperature
Controls and equip
ment Safety first Vehicle operation
and fuel economy has
reached a normal level. So you can see that you
should avoid short trips whenever possible.
The
outside temperature is also cr it ical in th is regard . Your car
consumes more fuel in the winter than in the summer. •
Vehicle care Do-it-yourself service Technical data
Page 263 of 370

____________________________________________ C_l_e _a_ n_ i n--= g=--- a_n_ d----' p,__ r_o _t_ e_ c_ t_ i _o_ n __ _
Under certain circumstances, weekly washing may be necessary .
Under other conditions, a monthly washing and waxing may be
adequate.
After the winter, the underside of the vehicle shou ld be thoroughly
washed, p referably in a profess ional car wash.
& WARNING
Always read and heed all WARNINGS and other information
~page 260. •
Automatic car wash
The vehicle can be washed in almost any modern auto
matic car wash.
Th e vehicle paint is so durable that the vehicle can normally be
washed without problems in an automatic car wash . However, the
effect on the paint depends to a lar ge exten t on the design of the
facility, the filtering of the wash water, the type of wash and care material, etc. If the paint has a dull appearance after going through
the car wash or is scratched, bring this to the attention of the oper
ator immediately . If necessary, use a different car wash.
Before going thro ugh a car wash, be sure to take the usual precau
tions such as closing the windows and power roof. Factory installed
antennas must not be removed.
If you have installed additional accessories on the vehicle -such as
spoilers, roof rack, etc. - it is best to ask the car wash operator if these
should be removed.
& WARNING
Always read and heed all WARNINGS and other information
~page 260. •
Safety first
Washing the vehicle by hand
A lot of water is needed when washing a vehicle by hand.
-Before you star t washing, make sure you have read and
understood the WARNINGS~
& in "General informa
tion" on
page 260.
- First soak all dried dirt until it is soft, then rinse it off .
- As you clean your vehicle, start with the roof and work your
way down to the bottom, using a sponge, a sponge glove
or a clean brush.
- Rinse the sponge or the sponge glove often, flush ing it
clean each time .
- Use special car shampoo only for very persistent dirt.
- Rinse the car thoroughly with water.
- Use a chamois leather to gently wipe the exterior dry.
Use a separate sponge for cleaning the wheels, door sills and other
regions exposed to road dirt. In this way, you will not scratch the
paint with coa rse particles imbedded in the sponge the next time you
wash the car.
& WARNING
• Do not clean the underside of the chassis, fenders, wheel
covers, or other hard to reach parts without protecting your hands
and arms. You may cut yourself on sharp-edged metal parts.
• Always read and heed all WARNINGS and other information
~page 260. _..
Vehicle care Technical data
Page 266 of 370

-~_C_ le_ a_n_ i_ n_ g=- a_ n_d__. p_ ro_ t_e _c_ t_ i_o _n ___________________________________________ _
Plastic and vinyl
Plastic needs special care.
Use a clean, damp cloth or sponge to remove dust and light surface
dirt. For other soil, use a lukewarm all-purpose cleaning solution or a
mild saddle soap for vinyl trim . Remove water spots and traces of
soap with a clean, damp cloth or sponge. Use a clean, soft cloth to rub
dry.
Grease, tar or oil stains can be removed with a clean cloth or sponge
soaked with all-purpose cleaner or with a solvent designed especially
to clean vinyl.
Occasionally apply a colorless vinyl or leather preservative to retain
the material 's luster and pliability.
& WARNING
Always read and heed all WARNINGS and other information
:::> page 260. •
Aluminum trim
Use only neutral-pH products to remove spots and deposits from
aluminum surfaces. Chrome care products and alkaline cleaners will
attack aluminum surfaces and can damage them over time .
& WARNING
Always read and heed all WARNINGS and other information
=>page 260. •
Touch-up paint
Minor paint damages should be touched up immediately.
- Use either a touch-up paint stick or spray paint to cover
minor scratches and nicks.
Your Audi dealer has touch-up paint for minor scratches and stone
chips . Scratches should be touched up soon after they occur to
prevent corrosion.
If a spot starts to rust, however, a simple touch-up job will not be
enough. The affected surface must be sanded smooth and coated
with an anti-rust primer before the painted finish can be restored.
The number for the original vehicle paint can be found on the vehicle identification label=>
page 340.
& WARNING
Always read and heed all WARNINGS and other information
=>page 260. •
Windows
Clear vision to all sides.
Clean all windows regularly to remove road film and carwash
wax buildup.
- Remove snow from windows using a brush.
- Use a plastic ice scraper to remove ice from windows and
mirrors.
- Remove other residue on the windows with a spray-on glass cleaner.
- Wipe the windows dry with a clean piece of cloth or
kitchen paper towel.
Page 270 of 370

-~_C_ le_ a_n_ i_ n_ g=- a_ n_d___. p_ ro_ t_e _c_ t_ i_o _n ___________________________________________ _
detergent. Apply the water with a damp cloth o r sponge a nd pat the
fabr ic dr y wi th a n ab sorb ent , dr y clot h.
Sta ins from choco late or makeup should have dete rge nt paste (e.g.
ox -gall soap) ru bbed into them . Afterwards, remove t he soap w ith
w at er ( damp s ponge).
Alcoho l can be used to treat sta ins from grease , oil, lipstick or a ba ll
po int p en. Melte d gre ase o r dye mus t be p atted o ff usi ng absorbe nt
material. It may be necessary to ret reat t he areas with detergent
paste a nd water .
In the case of ge nera l soili ng o f th e upholste ry an d cover mater ia l, we
recommend hiring a specialist that has the equ ipment to clean the
sea t cover s and o ther fab ric su rf a ces by sh am poo ing and s pray
extractio n.
& WARNING
Always read and heed all WARNINGS and the information
~ page 260 .
(I) Tips
Ope n Velcro fasteners on yo ur clothing can damage the sea t cover.
Please make su re t hat Velc ro fasteners are closed .•
Plastic parts and instrument panel
Always use a clean cloth moistened in clear water to clean t hese
a reas. For pers iste nt dirt use a n Audi appr oved
solvent-free plas tic
cleaner /protectant.
& WARNING
Solvents can change the properties of some plastics and make it harder for the airbag to deploy.
& WARNING (co ntinued )
• Never clean the instrument panel or the surface of airbag
modules with cleaning products that contain solvents.
• Products containing solvents will make the surface of this part
porous.
• Serious injuries can result if plastic parts come loose when the
airbag is deployed .
• Always read and heed all WARNINGS and other information
~page 260.
0 Note
Cleaning agents contai ning solvents will attack the mate rial and can
c hange the w ay it behave s.•
App lies to vehicles: with na tural leather
Natural leather
A udi makes gre at effo rts to main tain the propert ies,
natura l loo k and f eel of inte rio r le a th er .
General
We offe r m any di fferen t types o f lea ther on ou r ve hicl es. Most are
differen t types of nappa leat her, which has a smooth s urface and
comes in va rious co lo rs .
Th e int ensity of the colo r de ter min es th e vi sual cha ra cte ris tic s an d
appea rance. If the s urface o f the leathe r has a typical natu ral look,
t hen the le a the r is a nappa lea ther tha t has bee n left in a relat ively
natura l condition. This leat he r offers partic ularly good comfort a nd
brea thes wel l. Fine veins, closed gr ains, insec t bit e s, sk in fol ds , and
subt le variations i n color rema in v isib le. These character ist ics demon
stra te t hat the ma ter ia l is na tural.
N at ural nappa leat her i s not cov ered by a colo r finish.
It is therefor e
more sensitive to soiling and wea r, which is somethin g you need to ..,