open hood VOLKSWAGEN JETTA 2008 User Guide

Booklet 3.2 Tips and Advice
Checking the coolant level and topping off
The correct coolant level is important for correct functioning of the engine cooling
system .
Fig. 7 In the engine compartment: coolant expan­
s ion tank
To get a true reading, the vehicle must be
on level grou nd. Before opening the en­
gine hood, always read and heed all
WARN INGS
34, is job No. l
when working in the eng ine compart­
If th e coo lant level drops too low,
th e wa rning text
STOP Ch eck coolant
O w ner's manual!
is disp layed in the instru­
ment cluster and t he engine coo lant
level/temperatu re wa rning lig h t lights up.
Opening the coolant e xpansion tank
- Switc h off the eng ine and allow it to
coo l.
- To prevent scald in g, cove r the cap
8011 the expansion tank with a thick
cloth and ca refu lly un screw the
Checking coolant level
- Look into the open coo lant expansion
tan k and read off the coo lant leve l.
- If th e leve l is belo w the
mark , top
off w ith coolant.
Topping off coolant
- Only use new coolant.
44 Checking and Filling
Fi g. 8 In the engine compar tment: cap of coola nt
expansion tank
-Do not fill above the upper mark.
Closing the coolant expansion tank
-Reinsta ll the cap
pos itio n of t he coo lant expa nsion tank i s
show n in the corre spo ndin g en gin e co mpart ­
overview 3.3 'Technical data."
Make sure that the coola nt meets the required
s p eci fications
43. Do not use a different
typ e of add itive if coolant addit ive G 12 i s not
avai lable. In this case use only water and bring
coola nt co ncentrati on back up to th e corr ect
l eve l as soo n as po ssible by to pping off with the
s p ec ified addi tive
43 .
A lways top off wi th
Do not fill above the upper mark. Otherwi se the
excess ive coo la nt be pressed out of the
coo ling sys tem w hen th e engine is hot.
T he
additive G 12 (purp le) may be mixed
w ith G 12 (pink) and a lso with G 1 1.
WARNING
Stop! Before working in the e ngine compart­
ment, a lways read and heed all WARNINGS
34. The engine compar tment of an y
motor vehicle i s a poten tially dangerous area
and can cause serious personal injury.

fluid reservoir has a black cap.
Fig. 12 I n the engine compartm ent : c ap of the
brake fluid reservoi r
To get a read in g, the ve hicl e be
on leve l g round . Before opening th e
g in e hood, always rea d and hee d all
WA RN INGS
34, "Sa fety is job No. 1
w hen wo rkin g in the eng ine com par t·
m ent' '.
H ead off fluid leve l a t the tran s­
par ent brak e fluid reservo ir. IL sho uld
ways be be twee n th e "M IN" and "MAX"
m arks .
Bookl et 3.2 Tips and Advic e @
• Never move the w indshi eld wiper o r sh ield wiper arm manu ally· this co uld cause
damage!
• To prevent damage to the wiping sys te m,
ways loose n blades froze n to th e g lass befor e ting th e wi pers
Th e loca tion of the brak e flu id reservo ir is show n
in the correspo nding engin e co mpartm ent over·
v iew
3 .3 "Tec hnical Data. " T he brake
fluid reservoir has a black cap 12 .
Th e fluid leve l drops slightly w hen th e hide is bein g use d and as the pads are to mat ically a dju ste d as they wea r dow n.
Howe ver, if the leve l goes
no ticeab ly i n a time, o r drops below th e "MIN " mark,
ther e ma y be a lea k in the brake syste m. If th e
brak e fluid leve l drops too low, the wa rnin g tex t
STOP . Brake fluid stop vehicle! i s disp layed i n the
instrumem cluste r an d the brake system
warning lig ht light s up . If this hap pens, imm edi ·
ate ly take the ve hicle to an auth orized Vo lk­
s wa gen d ealer ship, or qua lified workshop a nd
have the brak e sys te m insp ecte d.
WARNING
Stop! Before wo rk in g in the en gin e compart­
ment , a lways read and h eed all WARN IN GS
34 . Th e engine compar tme nt of any
motor vehicle is a pot entia lly dan gerou s area
and can ca use ser io us perso nal injur y
Checking and Filling 47

Booklet 3.2 Tips and Advice
The electrolyte level be checked reg ularly in high-mileage vehicles, in hot
cou ntri es and in older batteries.
- Open the engine hood and open the
batt ery cover at the front.
- C heck th e co lor display in the round
w ind ow at the top of the battery.
- If there are air bubb les in the window,
tap the w indow gent ly un til they disp erse .
Th e positio n of th e battery is sh ow n in th e corre ­
spo ndin g engine compart ment diagram
3.3. Th
e ro und window ("magic eye '') on th e to p of
t h e batt ery chang es color, d epending on the
c harg e le vel and ele ctrolyt e le vel of the ba ttery.
I f th e c olor in the w indow i s co lor less or bri gh t
ye llow . the elec trol yte le vel of the battery is to o
I la ve the ba tte1y ch ec ked by a q ualifi ed
d eal ers hip ..
The col ors g ree n and b la ck ar c use d b y the work­
s h op t o diagno se the battery.
Charging and replacing vehicle batteries
All work with the vehicle battery req uir es specia l know ledge.
Have th e batteries checked by auth orized
Vo lkswagen deale r o r qua lified workshop be­
t ween regular ma inten an ce i nt erva ls if you of te n
driv e short distance s or i f th e vehicle is not
driven for lo ng peri ods.
I f the bat te ry has discharged and you have prob­
l ems starting th e ve hicle, the battery might be
damaged . If thi s happens, we re comme nd you
h ave the ve hicle batte ry c hecked by an autho­
ri ze d Vol kswag en dealer
it w ill he erly recha rged o r re pla ced.
C har ging vehicle batteries
T he c har ging of the vehicl e batt eri es s hould be
l ef t to an aut horized Vo lkswage n deale r o r qual­
ifi ed workshop, b ecau se your ve hicle is
equipp ed w ith specia l batteri es th at mu st b e
charg ed in a contro lled e nvironm ent.
50 Checking and Filling
Rep lacing a battery
T he batt eries have been specia lly deve lo ped for
th eir lo cat io ns and they have specia l sa fe ty fea ­
Genui ne Volkswage n batte ries me et th e m aint e­
nan ce, and safety sp ecificat io ns
fo r you r ve hicl e.
WARNING
• u se on ly maint en an ce -fr ee or
cycle -free, leak-proof batteries with the same
s pecification s and dimen sions as the ori ginal
e quipm ent batt ery. S pecifi cation s are liste d
on the batt ery hous ing.
• Before sta rtin g
work on th e batteries,
a lways rea d and heed a ll in
"Loca tion of battery" on page 49.

WARNING (continued )
hide. The doors can be lock ed using the re­
mote control key or the powe r lock button.
Th is co uld res ult in peop le bein g trapped in
th e ve hicl e.
•
build -up in th e passenger com part ­
ment an d lu ggage compartmen t o f a parked
Fuses
Changing a fu se
Fig. 32 Dosh panel, le fl: cover of fuse box A
Fuse bo x A locat ed in th e side of the
da sh pan el on th e driver' s side
In se rt a suit abl e obj ect (e .g. a sc rew ­
dr iver) into th e
32 and car efull y
pry the cove r oil
Fu se box B in the engine compartment
Open the en gin e hood .
Press the release tabs 33 (arrow s)
to re lease the fuse box cove r.
R e mo ve the cover .
To re mount the cover, place it ove r th e
fu se box
press the sid e tab s in the op­
po sit e direct ion until they latch sec ure ly.
Bookl et 3.2 Tip s and Advice
WARNING (continu ed)
vehicle can re sult in tem peratur es in the ve­
hicle that arc much higher than the out sid e
tem peratu res, p arti cularl y in su mmer. Tem ­
p era tures ca n quickl y reac h levels that can
cause unco nscio usne ss and death, particu ­
l ar ly to sma ll childre n. _.
Fig . 33 In the engine compa rtment: caver of fuse
box B
The indiv idu al el ec trica l ci rcu its are prot ecte d
b y fu se s. We reco mm end y ou sev eral spar e
fu ses at all tim es. T hese are availab le from a u­
th ori ze d Vo lk sw agen dea le rs.
A ut omob ile te chnol ogy chan ges co ntinuously.
Your a uthori ze d Volkswage n deal er h as the mo st
curr ent t echn ica l in format io n for your Vo lk­
sw agen.
I f yo u ar e
sur e w hich fu se to use or to ch an ge ,
co ntact your authori zed Vol kswage n Se rv ice
viso r.
Co lar cod ing o f fu ses
C olor
rating
li ght
5
brow n t 7.5
reel I 10
What do I do now? 77

-Place the bulb holder insert back in the
h ead light. Make sure the hold er is prop erl y
i n se rted.
- Push the
82, fig. 36
th e headlight.
Replacing the turn signal light bulb
Fig . 3 8 Bulb ho ld er for the tu rn signo l
The bulb ho lde r for the turn signal is lo­
ca ted undern eath the headlight /po sition
l amp.
Booklet 3.2 Tips and Advice
If yo u ar e unc ert ain ho w rep lace a de­
fective bulb, see yo u authorized Volk swage n
de aler for assis tance.
- Swi tc h the light off.
- Switch off the ig nition .
- Open the eng ine hood.
- Turn the bulb holder as far as it wi ll go
in the direc tion of the a rrow
38 .
- Remove the bulb holder from the hea d­
light.
- Cha nge the bulb.
- Rep lace the bul b holder in th e head-
li ght and turn it as far as it will go in the op­
po site direction to the arrow.
If you are un certain abo ut how re pla ce a d e­
f ec tive bulb , see you authorized
dea le r fo r ass is tance.
Changing the bulb for the brak e light or rear turn signal
Fig . 3 9 Broke light and rear turn signa l bu lb holder unit
Changing the bulb
- Open the rea r lid.
- Loca te th e cover in the luggage com-
partm ent trim panel to access the bulb
hold er and open it.
- Disco nn ect co nn ector
39
- Press the release ta b s =£l g. 39 (a rrow s}
and pull the bulb h older ou t.
- Repla ce the defe ctiv e bulb.
- Rein sta ll th e bu lb hold er secur ely.
- Reconnec t the connecto r@ .
- Rein stall the cove r in th e trim panel.
What do I do now ? 83