2010 VOLKSWAGEN JETTA Owners Manual

Booklet 3.2 Tips and Advice
Fuel supply
Applies lo ve hicl es: wi th a gasoline engi ne
Gasoline
The co rrect gaso line grades are lisred on a sti cke r inside the Juel fill er flap.
Octane roting
Octane rating indicates gaso line's a bility to re­
s ist en gin e da ma ging "k noc k" ca used by pre- ig­
n iti on. Therefo re, buyin g the correc t grade of
gaso line is very
to help p reven t pos­
s ibl e e ngin e damage and a loss of e ngin e perfor­
man ce.
T he recommende d gaso line oc ta ne rating for
yo ur eng ine ca n b e fo und on a la b el loca ted on
th e in sid e of the fu el fill er flap. This rat ing m ay
b e s pecifie d as AKI (CLC) o r HO N (ROZ).
Gaso lines mo st co mm onl y use d in the Unite d
States and
hav e th e fo llow ing octan e
ra tin gs that can usually be found on th e fill er
pump :
• Premi um Graci e: 91
96 AKI
• Reg ular
87 90 AK I
Unlead ed gasoline
Unleaded gasoline is ava ilab le throu ghout t he
U SA, C anada, and in most European countri es.
We recom men d th at yo u do not take your ve­
h icle
oxyge nates) if the
bl end ed mixture mee ts th e fo llowing criteria :
Blend of gaso lin e methanol (wood alcohol or
meth yl alco hol):
• Anti -kn ock ind ex mu st be 87 or hi gh er,
• Ble nd mu st co ntain no mor e th an 3% meth ­
a n o l,
• 131encl must co ntai n m ore tha n 2% co-so l­
ve nts.
Bl end of gasoline a nd ethan ol ( gra in alco hol or
e th yl alco hol) :
• Anti-knock index mu st b e 87 AK I or higher,
32 Checking and Filling
• Ble nd mu st n ot co ntain mor e than HJ% eth­
ano l.
Bl end of gaso line a nd MTBE:
• Anti -knock index must b e 87 AK I or high er,
•
m ust contain not more t han 15% MTB E.
Seasonally adjusted gasoline
Many gasolines are blen ded perfor m espe­
cia lly well for win te r or summer driv in g. D urin g
seaso nal ch ange-over, we su gges t that you fill up
busy sta tio ns where the seaso nal adju st­
ment is more like ly be mad e in tim e.
Note
• Do not use any fuel w ith octan e ra tings lowe r
than 07 /\K l or 9 1 otherw ise expensive en ­
g in e damage w ill occur.
• Do not use lea ded gaso lin e! Usin g le aded
gaso line
w ill seve re ly da mage vehicle 's cat­
a lyt ic co nverte r and its abilit y to re du ce ex hau st
e mi ssio ns.
• Met hanol fue ls th at do not meet th ese re­
q uir eme nts ma y ca use c orro sio n and dam age to
p las tic a nd rubber component s in th e fu el
sys te m .
• Do not u se fuels that fa il to meet the criteria
s p ecified above.
• If yo u are unable to dete rmine wheth er or
n ot
parti cul ar f uel bl en d m eets the sp eci fica ­
t io ns above, ask your service s ta tion o r its fu el
s u pplie r.
• Do not use f uel for whic h th e con te nt s
ca nn ot be identifie d.
• Fuel system damage and performan ce pro b­
l e ms r esultin g from the use of f uels diffe re nt
from those s peci fied above are
11 0 1 th e respo nsi­
bilit y of Vo lkswage n and are 1101 covered under
th e New Ve hicle or th e Emission Co ntrol
War ra n ties.

For the sake of e nvi ro nm ent
Just one tank or leaded gas will seriously re ­
duc e the of the catalyti c converter.
Applies lo vehicles : with o gasoline engine
Gasoline additives
Booklet 3.2 Tip s and Advice
Tip s
you notic e a lo ss o r economy or driv e­
ability and p erformanc e problem s using one or
these fuel blends,
reco mmend that you
sw itch to unbl endecl
Gasoline additives improve quality of the gasoline.
Gasoline quality influen ces en gine behavior, fi cie ncy . p erformanc e and serv ice F o r thi s
reason you sh ou ld always use good quality gaso­
lin e contai ning additives. These addi tives will
h elp
to p re vent corrosion, keep system
clea n and pr event depo sits from bui ldin g up in
the engin e.
good qualit y gasol ine with additives is not
a vai lable, or eng in e probl em s ari se, additives
ma y be added to the gasoline.
Applies to veh icles : wi th o Diesel e ngine
Diesel fuel
Always Diesel fuel No. 2 on Ly.
Serv ice s tation s offer ing Die sel are generally
l ocated on truck routes or maj or hi ghw ays . Di­
re cto ri es or Diese l
stat ions are usually avail­
ab le at Di esel station s.
Some state s in t he USA requir e perm its
to pur­
chas e Diese l Check w ith yo ur Stat e Motor
Ve hicle Department.
Die sel
may not be ava ilable outs id e th e US A
and Canada. Be sur e to check before trav elin g to
othe r co untrie s.
Winter opera tion
At te mp erat ur es below 20° F No. 2 loses its fluidity d ue to wax separation,
which may clog the filt er or tank and
kee p th e engin e running.
To help in p reve nting su ch co nditions, the
in your vehicle is au tomatica lly preheated. You
can also buy gasoline additives separat ely
and add them to the gaso line yourself
yo u h ave
probl ems star ting or the e ngine does not sm oot hly.
Not all gasoline addit ives are effec tive. W e rec ­
omme nd you use only genu ine Vo lkswagen gas
additives for gasoline e ngin es . T hese add itive s
a re ava ilabl e from your authorized Vo lk swage n
deal er. Yo u will also receive information on how
to use th em.
Do not mi x other gas additives with th e gas
Preheating th e makes operation or
yo ur vehicl e po ssib le wit h Di ese l fuel N o. 2
down to - 10° F (-24 ' CJ.
you expect tem perat ur es below 5° F (-15 ° C) ask
you r dealer w hethe r their Diesel f uel No. 2 is
sufficie ntly winterized the pr evailing te m ­
pe ratures.
not wint erized or insu fficient ly win te rized
D iese l has a lready thick ened to the extent
that t he engin e will not start, it can be re ctifi ed
by lea vin g th e ve hicle standing
some time in
a heated s helter.
It is normal that th e engine noise leve l (die­
se ling ) is lou der du ring th e warm-up period in
w int er. It i s also norma l that whi tish-b lue smok e
be emitted from t he tailpipe after startin g
and d uring warm -up. The amoun t or smoke de-
pend s on th e outs id e te mp erature.
Checking and Filling 33

Booklet 3.2 Tips and Advice
Do no t let your Diese l e n gin e idl e u1111 ecessa rily
afte r a co ld start. Drivin g off s low ly wi ll sho rten
th e wa rm -up peri od.
WARNING
• Neve r use "s tarting a ssist fluid s". The y
may be pot entiall y explosive or cause a "run ­
away" engine condition. This could result in
ser ious engine damage and personal injury.
• Do not use fuel line antifreeze offered for
gasoline engines.
Note
• Your Diese l engi ne ha s bee n sp eci fica lly de­
s ig ned
10 ope rate o n Die sel fu el o nl y. T here fore.
n eve r use home hea tin g oil o r reg ular gaso line.
Th e pro p erti es of th ese fuels
ca use se rious
damage fuel injection sys tem and th e
e n gin e. This could l ead to additional expense
and will al so affe ct your warrant y.
• If Die sel fuel should get o n any rubb er h ose,
it
b e w ip ed off imm ediat ely . T he n wash th e
con ta minat ed hose port io n w ith so ap and warm
wa te r. Do not allow D iesel f uel
remain on co n­
n ec ting hoses . Th ey may de velop leaks and
ca use se rious damage.
be taken when worki ng on engine or on components the
engine compartment.
an y work on the engine or
in th e engi ne compartment:
I. Move the se lecto r l eve r P (Park ).
2 . App ly the parking brake firm ly .
3. Sw itch off the engi ne a nd re mo ve the
key from th e igni tion.
4. Wai t for the engine lo coo l d ow n.
5. Keep children and oth ers awa y fro m the
vehicle.
6 . Open the eng ine hood
36 .
All se rv ice fluid s, spark plugs. bau er ies etc. a rc
co nstantl y being deve lo ped and improved. Au­
th ori zed Volkswage n dea le rs a re kept up- to-da te
by the m anufa ctur er. For this reaso n
recom ­
m end that you h ave these re placed b y an autho ­
ri zed Volkswagen dea le r. P lease re ad th e notes
bel ow. The engin e co mpartment of an y m otor
vehicle is a hazardous
WARNING
Propo sition 65 Warning:
34 Checking and Filling
Lt::, WARNING
• Eng ine ex hau st, some of its cons tituent s,
and certain vehicle components contain or
em it chemica ls known to the Stale of Ca li­
forn ia
cause ca ncer and birth defe cts and
r e produ cti ve harm. In addition , cer tain fluid s
co ntained in vehicle s and certain product s of
c omponent wear contain or emit chemical s
known lo the Stale of California to cau se
cancer and birth defects or other reproductive
h ar m.
• Batter y posts, terminals and related acces ­
so rie s co ntain le ad and lead compon ent s,
c h emi cal s known to th e S tate of Ca lifornia
cau se cancer and reprodu cti ve harm . Was h
hand s hand ling.
WARNING
The en g ine compa rtment of an y motor vehicle
i s a pot entiall y dangerou s area and ca n ca use
s er io us per sonal injury.
• Always use extrem e ca ution when doin g
an y wo rk in th e engine compart ment. Alwa ys
follow common ly acce pted safety practi ces

WARNING (continued)
and use co mmon se nse. Never r is k p ersonal
injur y.
• Never perform an y work in th e engi ne
c ompartm ent unl ess you know exactl y
to
ca rry o ut th e jo b ancl have the c orr ect tec h­
ni cal informati on and th e corre ct tool s! lf yo u
a re un certain about what to do, have th e w ork
performed b y an authori zed Volk swagen
d ealer or a qu alifi ed d ealers hip. Seriou s per­
s on al injur y m ay res ult fr om impr op erl y per ­
form ed wo rk.
• Neve r open th e eng in e ho od if you see
s team or coo la nt esca ping from the e ngi ne
com partm ent. I-l ot ste am or cool ant can cause
se riou s burn s. Always wa it until you no lo nge r
see o r h ear s te am or coolan t esca pin g fro m th e
e ng in e.
• Alw ays let t he en g in e coo l d ow n com­
pl ete ly before c aref ully openin g th e e ngin e
hood . I-l ot co mp on ent s w ill burn skin on co n­
ta ct.
• When th e engin e has coo le d d own and you
ar c r ead y to open th e engin e ho od:
- Rem ove the key from th e ig nition.
- Appl y th e parkin g brake firml y and put
th e se lec tor in P (P ar k).
- Kee p childr en and oth ers away from the
ve hicl e.
• Never reac h in to th e a re a aro und or to uch
th e ra diato r fa n. Co ntact w ith th e blad es can
r es ult in serio us pe rs on al inju ry. A lw ays re­
memb er that th e ra diato r fa n i s te mp erature­
con tro lled a nd can turn on su d d enl y
eve n
w hen th e e ng in e ha s bee n sw itch ed off for a
l o nger pe riod of tim e and the k ey has bee n r e­
mo ved fro m th e ig niti on .
• Never unscre w th e coo lant expan sio n tank
c ap when the en gin e is hot.
h o t e ngin e will
h eat th e coolant and put it unde r pr ess ure. Re­
mo ving
cap th at is under pressur e ca n res ult
in seriou s perso nal in jur y and /o r burn s.
• Alw ays prot ect fa ce, hand s a nd arm s from
h ot esca ping coo la nt or stea m b y cove ring th e
ca p with a la rge, thick rag.
• Turn the ca p slow ly and very ca refull y in a
co unt er-cl oc kw is e dir ec tion whil e ap ply in g
li g ht d ownwa rd press ure on the to p of the cap.
Booklet 3.2 Tips and Advice
,1i WARN ING (continued)
• Neve r spill flui ds on hot engine parts or ho t
ex haust sys te m . S pill ed fluid s can cau se a fire!
• Neve r sh ort -ci rc uit th e e lec trical sys te m ,
es pec iall y wher e the jump er ca bles a rc at ­
ta ch ed
Th e ba tter ies co uld explo de!
• Never leave a ny o bjec ts in th e eng in e co m­
p artm ent, fo r exa mpl e cle anin g rag s and to ols .
O bjec ts le ft b ehind can cau se m alfu nction s
and e ven
res .
• Neve r wo rk und er th e ve hicle unl ess y ou
h ave safe ly sec ured th e vehicle from m oving.
If yo u mu st wo rk und er the vehicl e with th e
w hee ls on th e gro und, always make sure the
ve hicl e is on leve l gro und , th e w hee ls arc
b locke d from m oving and th e key is not in the
i g niti on.
• Al ways supp ort yo ur ve hicl e w ith safet y
st and s if you have to w ork und erne ath it. T he
j ac k suppli ed
th e is no t stron g
e nough fo r thi s purpo se and can collap se
ca usin g se riou s pers on al injury.
• lfyo u have to perform a ch eck or re pair
w hen th e e ngin e is runnin g, ther e are mor e
ri sk s from th e rot ating pa rts , su ch a s the driv e
be lts, ge nera tor , ra diato r f an , et c., and from
th e hi gh -v olta ge ig niti on sys te m. Al ways use
ex trem e c are:
- Never to uch th e elec trical wirin g of th e
i g nition syste m.
- Always make s ure th at j ew elry, lo ose
clothi ng and lon g
do no t ge t ca ught in
r o ta tin g e ngin e part s. B efor e sta rtin g any
wo rk re move je w elry, tic back a nd cove r
h air , a nd do n ot wea r cl othin g th at can
han g dow n and get ca ught in mo vin g en ­
g in e part s.
- Alwa ys use ex trem e caution if th e acce l­
e ra tor pedal ha s to be d epr esse d to perform
ch ec k. Th e vehicl e could mo ve sudd enl y,
eve n if th e parkin g br ake is a ppli ed.
• If wor k on the fuel sys te m or th e elec trical
sys te m
ne cess ary:
- Alw ays disco nnect the b att eri es . Ma ke
s ur e th e ve hicle is unlo ck ed when disco n­
nec ting th e batter ies, o r th e a larm will go
off.
- Neve r sm oke.
Ch ecking and Filling 35

Booklet 3.2 Tips and Advice
WARNING (continued)
- Neve r wo rk near heate rs, wate r heaters
o f o th er open flames.
Always have an approved fire extin­
g ui sh er nearb y.
• To avoid e lect rica l sho ck and per sonal in ­
ju ry
the engi ne is running or being
s tarted:
n ever touch ignition cab les,
- neve r touch oth er com ponen ts of the
hi gh vo ltage e lectronic ig nition sys tem ,
never 1oucl1 the gas discharged (Xenon)
headli ght s w ir in g.
Opening the engine hood
in se riou s malfunctions and engine
damage!
<£> For th e sake of environment
Service fluid leaks are harmful to th e environ­
me nt. Regularly ch ec k th e ground underneath
yo ur vehicl e. If yo u find spot s of oil or othe r
fluids. have your veh icle c hec ke d b y you r autho­
ri zed Vo lkswage n dealer or a qualified
wo rksh op.
The engine hood is released from inside the
Fig . 3 Deta il of the footwe ll: the re lease lever far
t h e engine hood is loca ted in the loa twell an ihe
dr iver side
Before you open the engine hood, make
s u re that the windshield wiper arm s are
folded-up against the w indshie ld so that
the hood will not be damag ed when the
hood is opened .
Pull the release lev er underneath the in­
s trum ent panel in the directio n of the
arrow
3 . The engine hood is rele ased
from its latch by a spring
36 Checking and Filling
Fig. 4 Detail of the radia to r grill : release leve r fa r
opening the engine hood
Lift the engin e hood up at the release
l ever
4 (arrow ) and open the hood
until it is he ld up by the gas-filled strut.
WARN ING
Stop! Before working in the engine compart ­
ment, a lways read and heed a ll WARN INGS
34. The engine compartm ent of any
motor vehicle is a potentially dangerous area
ca n cause serious p erso nal injury.

Closing the engine hood
-Pull th e en gin e hood dow n un til th e
p re ss ure from t he str ut is re d uced.
- Then le t t he eng ine hoo d fall an d la tc h
in p lac e
do 1101 µress
If th e en gin e hood does no t clo se prop erly , o pen
i t a gain an d clo se i t pro perl y. W hen th e e ngin e
h oo d is properl y cl ose d, yo u ca n se e tha t it fits
flu sh w ith th e o ther body part s.
Engin e oil
Engine oil specifications
Booklet 3.2 Tips and Advice
WARNING
If the e ngin e hoo d is not cl ose d pro perl y, it
co uld fl y up and blo ck yo ur view w hile dri ving
ca usin g a cr ash and seriou s pers on al in ju rie s.
• After clo sin g t he en gin e hood , a lway s
c he ck th at the safet y lat ch has pro perly en ­
g ag ed. The en gine hood must b e flu sh with the
s urroundin g body parts .
• If you eve r noti ce that the en gin e hood
l a tc h i s no t p roperl y sec ured when th e vehicle
i s m ov ing, stop a t on ce a nd cl ose it.
• Neve r let anyo ne g et in th e way of the en­
g in e hood when clo sing it.
Th e engine oil must conform to exact specifi cat ions .
Yo ur engi ne w as fa ctory filled w ith an all-se aso n
hi gh qu ali ty engin e o il with viscos ity g ra d e o f
SAE Yo u can u se this o il ov er all t emp er­
a tur e ra nges for n orm al dri vin g.
I f y ou nee d to add oil b etwee n oil ch an ges , u se
h ig h quality synth etic- ba sed oil w ith cor rec t
s p eci ficat ion s. If eng in e o il visc osit y g ra d e
5W-4 0 is not a va ilabl e, yo u ca n als o u se SA E 5W-
30 .
T o ass ure th at th e o il yo u u se is of th e hig h es t
qu ali ty re q uir ed by yo ur vehicl e, the fo llow ing
t e rm s m ust app ear on th e o il co nt ain er sing ly o r
i n co mbination wit h oth er de sig n atio ns:
Ga soline engin e
• VW 500 00 . VW 505 OJ o r VW 502 00
•
Di esel engin e
• VW 505 0 1 41, " Im portan t in forma tion
fo r vehicl es with Diesel e n gin e wh en ad din g or
c h angin g engine oil"
G ene ral recomm endations
If SAE 5W-40 o r visc osit y g rad e oil is not
a va ilab le in yo ur be sur e to alw ays use a vis ­
c osity g rad e s uita b le for th e clim ate and sea­
so nal co ndi tions th at exis t wh ere
v e hi cle is
ope rat ed . A lwa ys mak e sure th at o il m eets
t h e qua lity s tandard s liste d abo ve.
Checking and Filling 37

Booklet 3.2 Tips and Advice
Engine oil consumption
I n ord er to provide effective lubri cation and
cooling of int ern al eng ine compo nents, all in­
t e rnal combu stion engines use a ce rtain amount
of oil. Oil co nsumpti on varies from en gi ne
to en ­
gine and may change significantly over the life of
th e e ngine. T ypicall y engin es whi ch have a
break -in period, us e mor e oi l during the break ­
in pe riod than they do after the break-in period,
wh en oil consumption has stabilized.
Vo lksw age n recommend s that you use the ty p e
of oil that m eets th e s pec ifica tion s described
=:p age 37 ,
oil sp eci fica tion s".
Und er norm al cond ition s, the rate of oil con ­
s umpti on d ep ends on the qua lity of the o il as
w ell as it s viscos ity, the
(revolu tions per
minut e) at w hich the en gin e is operated, the
outside te mperature. the ro ad conditions as we ll
as the amount of oil di lution by co nden sa tio n
wa ter or fuel residu e and
th e ox idati on level
of the o il. As engines o il co nsumption incr ease ove r time until r epla cement of wo rn
eng ine parts may become ne cessary.
of a ll of th ese vn riabl es, it is not p ossible to sp ecify standnrd or rate o f oil con­
s umpti on. For that re ason, urge you to ch eck
the oil level in yo ur en g in e a t regu la r int erval s,
pr efe rabl y every time yo u re fu el, a nd alwa ys be­
fore going on
long trip.
The oi l pre ssure light i s not an indicator of low
e n g ine oil level. If the warnin g light doe s not go
out or flashes while drivin g (above 1500 e ngin e
a buzzer will so und. It indicates that the
o il pr essure is too low . Stop the engine imm edi-
38 Checking and Filling
ate ly, check th e engine oil leve l and add oil if
n ecessa ry. If th e eng ine oil l eve l is no rmal, but
th e light continu es to flash, do not continu e to
operate the ve hicl e. Engine dama ge ma y occ ur.
If yo u believe your engine u ses excess ive
amount s of oil, we reco mme nd that you co nsult
yo ur
Volkswagen d ea le r so that th e
ca use of conce rn can b e prop erl y diag ­
n ose d. Keep in mind t hat th e acc urate m easure­
m ent of nil consumpti on require s great car e and
ma y ta ke so me tim e. Yo ur Vo lkswagen deale r h as
in stru cti ons ho w
meas ure o il co nsumpti on
nccurately.
WARNING
S top ! Before working in the engi ne co mpart­
ment, a lways read and heed all WARN INGS
34. T he engine compar tment of a ny
m oto r ve hicl e is a potentially dangerous area
an d ca n ca use s eriou s personal injury.
Note
• The engin e in your vehicl e dep en ds on o il to
lub ricate and cool all of its mo vin g parts . Th ere­
fo re th e e ngin e oi l mu st be ch ec ked reg ularly
and k ept at th e req uir ed l evel.
• Make it a habit to have the e ngin e n il leve l
c h ec ke d eve ry tim e you refuel.
• Lack of eng in e o il ma y caus e seve re engine
d amag e.
• The
pressure warni ng ligh t is not oil
l eve l indi cato r. ._

Booklet 3.2 Tips and Advice
Checking the engine oil level
engine dipst ick indi cates the level o f th e oil.
Fig . 5 Engin e oil dip st ic k with engine oil level ma rks
To get a true reading, th e vehicle must be
o n le vel ground. Before opening the en ­
g in e hood, a lway s read a nd heed all
WA RN INGS ,iage 34, "Safety is job No. I
wh en worki ng in the eng ine
men t" .
-
the engine and wait a few minute s
for the oil to return to t he oil pan.
- Raise the en gi ne hood ,iage 36.
- Pull ou t th e dip sti ck an d w ip e it clea n
w it h a rag.
- Rein sert dip sti ck; push it all the way in. -
Pull th e dip stick out again and check
th e oil le vel.
- After check ing t he o il lev el, plea se mak e
sure that th e dip sti ck is p ush ed back i n all
t h e way.
T he pos ition of th e dip sti ck is s how n in th e cor­
responding en gin e co mpartm ent diagram
3.3 " Technical Data."
You must no t add oil.
You ca n oil. The oil leve l ma y go into th e
A ran ge, but not abov e th e A ran ge.
You must add oil. Afte r addi ng o il, m ake th at th e oi l leve l is somewhe re wit hin th e range.
WARNING
Sto p! workin g in the e ngin e c ompar t­
m ent, a lways re ad and h eed all
34. The eng ine co mpartm ent of a ny
mot or ve hicle is a poten tiall y dan gero us a re a
and ca n cau se ser io us pe rso nal injur y.
Not e
If the engin e oil leve l is above l evel 5 do
no t start th e engine -th is could damage the cat­
a ly tic co nverter and the eng ine! Contac t an au ­
th orized Volksw agen dea le r o r
qu alifi ed
workshop.
Checking and Filling 39