engine Seat Alhambra 2005 Service Manual

159 Refuelling
Safety FirstControls and equipment Tips and Maintenance Technical Data
Petrol additives
The quality of the fuel has a decisive influence upon the running
behavior, performance and service life of the engine. The additives
which are mixed into the petrol are of particular significance. Itis
therefore advisable only to use good q qu
ua
al
li
it
ty
y ppe
et
tr
ro
ol
l cco
on
nt
ta
ai
in
ni
in
ng
g
a ad
dd
di
it
ti
iv
ve
es
s.
.
K
D
Di
ie
es
se
el
l
Diesel
Diesel fuel must correspond to DIN EN1)590.
C
CZ
Z2
2)
)n
no
o llo
ow
we
er
r tth
ha
an
n 449
9.
.K
RME fuel (“diester”)
According to norm DIN 51 6063).
Vehicles with diesel engines can also run on
R RM
ME
E ffu
ue
el
l (Rapeseed
Methyl Ester).
Ask your Technical Service Centre or automobile club where
biodiesel is available.
See chapter "Filling the tank".
K
Properties of RME
•RME is chemically produced from vegetable oil (predominantly
rapeseed oil) in a process whereby the oil is mixed with methanol
and converted, via a catalyst, into RME.
•RME is almost totally sulfur free. The combustion of RME thus
emits practically no sulfur dioxide (SO
2).
•Exhaust gas contains less
– carbon monoxide
– hydrocarbons
– particles (i.e. soot)
than with conventional diesel fuel.
All emission values are lower than legal requirements.
•RME fuel is biodegradable.
•Performance may be slightly lower.
•Fuel consumption may be slightly higher.
•RME can be used in temperatures down to approximately –10 °C.
•Diesel fuel must be added at ambient temperatures of less than
–10 °C to prevent deterioration to the biodiesel. The mixing ratio
of diesel to biodiesel must be approximately 50:50.
I If
f tth
he
e RRM
ME
E rra
at
ti
io
o eex
xc
ce
ee
ed
ds
s 550
0%
%,
, tto
oo
o mmu
uc
ch
h ssm
mo
ok
ke
e mma
ay
y bbe
e ffo
or
rm
me
ed
d.
.
•During the summer months, RME may be mixed with diesel at
any ratio.
K
1)European norm2)Cetan-Zahl (Cetane Number). Measure of diesel fuel ignitability.3)DIN preliminary Norm

160Refuelling
Driving in winter
When using summer Diesel trouble may be experienced at
temperatures below 0 °C because the fuel thickens due to wax
separation.
For this reason winter Diesel which is more resistant to cold is sold
during the winter in some countries, and this works correctly down
to between –15 °C and –22 °C approximately, depending on the
brand of fuel used.
The biodiesel available in countries with different climactic
conditions usually has different temperature characteristics.
Technical Service Centres or service stations in each country can
inform you of the specific characteristics of the respective diesel.
K
Filter preheating
The vehicle is fitted with a filter preheater. This will ensure that the
fuel system will remain operational down to about –25 °C,
provided that winter Diesel which is cold resistant down to –15 °C
is used.
If, at temperatures below –25 °C the fuel is waxed to such an
extent that the engine will not start it is sufficient to place the
vehicle in a warm enclosure for a while.
Fuela ad
dd
di
it
ti
iv
ve
es
s
(anti-waxing agent), petroland similar fluids must
n no
ot
t
be mixed with Diesel fuel.
K

161 Intelligent technology
Safety FirstControls and equipment Tips and Maintenance Technical Data
I
In
nt
te
el
ll
li
ig
ge
en
nt
t tte
ec
ch
hn
no
ol
lo
og
gy
y
B
Br
ra
ak
ke
es
s
General notes
• Brake lining wear depends to a large extent on the operating
conditions and style of driving. On vehicles which are used mainly
in town traffic and stop/ start conditions or are driven hard it may
be necessary to have the thickness of the brake linings checked by
a Technical Service Centre in between the intervals given in the
Inspection and Service Schedule.
• Change down in good time when driving downhill, in order to
make use of the engine braking effect. This relieves strain on the
brake system. When the brakes are applied do not keep them on
continuously, apply and release alternately.
K
What can have a negative effect on the brakes?
W We
et
t oor
r ggr
ri
it
tt
te
ed
d rro
oa
ad
d ssu
ur
rf
fa
ac
ce
eO Ov
ve
er
rh
he
ea
at
ti
in
ng
g oof
f tth
he
e bbr
ra
ak
ke
es
s
•U
Un
nd
de
er
r cce
er
rt
ta
ai
in
n cco
on
nd
di
it
ti
io
on
ns
s ee.
.g
g.
. aaf
ft
te
er
r ddr
ri
iv
vi
in
ng
g tth
hr
ro
ou
ug
gh
h wwa
at
te
er
r,
, hhe
ea
av
vy
y rra
ai
in
n ffa
al
ll
ls
s
o or
r aaf
ft
te
er
r tth
he
e vve
eh
hi
ic
cl
le
e hha
as
s bbe
ee
en
n wwa
as
sh
he
ed
d,
, tth
he
e bbr
ra
ak
ke
es
s cco
ou
ul
ld
d sse
et
t iin
n lla
at
te
er
r tth
ha
an
n
n no
or
rm
ma
al
l ddu
ue
e tto
o dda
am
mp
p,
, oor
r iin
n wwi
in
nt
te
er
r –– ffr
ro
oz
ze
en
n,
, bbr
ra
ak
ke
e ddi
is
sc
cs
s aan
nd
d lli
in
ni
in
ng
gs
s –– tth
he
e
b br
ra
ak
ke
es
s mmu
us
st
t ffi
ir
rs
st
t bbe
e ddr
ri
ie
ed
d tth
hr
ro
ou
ug
gh
h cca
ar
re
ef
fu
ul
l bbr
ra
ak
ki
in
ng
g.
.
W
WA
AR
RN
NI
IN
NG
G
•F Fu
ul
ll
l bbr
ra
ak
ki
in
ng
g ppo
ow
we
er
r mmi
ig
gh
ht
t aal
ls
so
o sse
et
t iin
n lla
at
te
er
r tth
ha
an
n nno
or
rm
ma
al
l eev
ve
en
n wwh
he
en
n ddr
ri
iv
vi
in
ng
g
o on
n ggr
ri
it
tt
te
ed
d rro
oa
ad
ds
s iif
f yyo
ou
u hha
av
ve
e nno
ot
t bbr
ra
ak
ke
ed
d ffo
or
r sso
om
me
e tti
im
me
e –– tth
he
e lla
ay
ye
er
r oof
f ssa
al
lt
t oon
n
t th
he
e bbr
ra
ak
ke
e ddi
is
sk
ks
s aan
nd
d bbr
ra
ak
ke
e lli
in
ni
in
ng
gs
s mmu
us
st
t ffi
ir
rs
st
t bbe
e wwo
or
rn
n ddo
ow
wn
n wwh
hi
il
ls
st
t bbr
ra
ak
ki
in
ng
g.
.
W
WA
AR
RN
NI
IN
NG
G ((c
co
on
nt
ti
in
nu
ue
ed
d)
)
• • NNe
ev
ve
er
r lle
et
t tth
he
e bbr
ra
ak
ke
es
s ““r
ru
ub
b”
” bby
y ppr
re
es
ss
si
in
ng
g tth
he
e ppe
ed
da
al
l tto
oo
o lli
ig
gh
ht
tl
ly
y wwh
he
en
n yyo
ou
u ddo
o
n no
ot
t rre
ea
al
ll
ly
y nne
ee
ed
d tto
o bbr
ra
ak
ke
e.
. TTh
hi
is
s cca
au
us
se
es
s tth
he
e bbr
ra
ak
ke
es
s tto
o oov
ve
er
rh
he
ea
at
t,
, lle
ea
ad
ds
s tto
o
l lo
on
ng
ge
er
r bbr
ra
ak
ki
in
ng
g ddi
is
st
ta
an
nc
ce
es
s aan
nd
d tto
o aa hhi
ig
gh
he
er
r lle
ev
ve
el
l oof
f wwe
ea
ar
r.
.
• • BBe
ef
fo
or
re
e sst
ta
ar
rt
ti
in
ng
g oon
n aa llo
on
ng
g sst
tr
re
et
tc
ch
h oof
f rro
oa
ad
d iin
n aa vve
er
ry
y hhi
il
ll
ly
y aar
re
ea
a,
, ppl
le
ea
as
se
e rre
ed
du
uc
ce
e
y yo
ou
ur
r ssp
pe
ee
ed
d,
, cch
ha
an
ng
ge
e tto
o aa llo
ow
we
er
r gge
ea
ar
r ((m
ma
an
nu
ua
al
l gge
ea
ar
rb
bo
ox
x)
) oor
r cch
ho
oo
os
se
e aa llo
ow
we
er
r
p po
os
si
it
ti
io
on
n ((a
au
ut
to
om
ma
at
ti
ic
c gge
ea
ar
rb
bo
ox
x)
).
. IIn
n tth
hi
is
s wwa
ay
y yyo
ou
u wwi
il
ll
l uus
se
e tth
he
e bbr
ra
ak
ki
in
ng
g ppo
ow
we
er
r oof
f
t th
he
e een
ng
gi
in
ne
e aan
nd
d rre
el
li
ie
ev
ve
e ppr
re
es
ss
su
ur
re
e oon
n tth
he
e bbr
ra
ak
ke
es
s.
.
• • IIf
f aa ffr
ro
on
nt
t ssp
po
oi
il
le
er
r,
, ffu
ul
ll
l ssi
iz
ze
e wwh
he
ee
el
l ttr
ri
im
ms
s eet
tc
c.
.,
, iis
s rre
et
tr
ro
of
fi
it
tt
te
ed
d,
, iit
t iis
s nne
ec
ce
es
ss
sa
ar
ry
y tto
o
e en
ns
su
ur
re
e tth
ha
at
t tth
he
e ffl
lo
ow
w oof
f aai
ir
r tto
o tth
he
e ffr
ro
on
nt
t bbr
ra
ak
ke
es
s iis
s nno
ot
t rre
es
st
tr
ri
ic
ct
te
ed
d –– oot
th
he
er
rw
wi
is
se
e
t th
he
e bbr
ra
ak
ke
es
s cca
an
n oov
ve
er
rh
he
ea
at
t.
.
K
W WA
AR
RN
NI
IN
NG
G

164Intelligent technology
W
Wh
he
ee
el
ls
sp
pi
in
n cco
on
nt
tr
ro
ol
l ((T
TC
CS
S)
)
In vehicles with front wheel traction, the TCS lowers the engine
power to stop the wheel spinning when you accelerate. This feature
works at any speed in combination with the ABS. If there is an ABS
breakdown, the TCS stops working.
Vehicles fitted with TCS are also fitted with an electronic differential
lock (EDL).
The EDL makes it much easier, or even possible, to pull away,
accelerate and climb steep gradiants in unfavourable conditions.
The EDL works fully automatically – the driver does not need to do
anything at all.
It uses the ABS sensors to monitor the speed of the driving wheels.
Up to a speed of about 80 km/h (50 mph), a difference in speed of
the drive wheels of approximately 100 rpm caused by a slippery
road surface on o on
ne
e ssi
id
de
e
is balanced out by slowing down the
wheel which is slipping and thereby applying more driving force to
the other drive wheel through the differential.
T Th
hi
is
s cco
on
nt
tr
ro
ol
l ppr
ro
oc
ce
ed
du
ur
re
e cca
an
n bbe
e dde
et
te
ec
ct
te
ed
d bby
y tth
he
e sso
ou
un
nd
d iit
t mma
ak
ke
es
s.
.
I In
n oor
rd
de
er
r tto
o oob
bt
ta
ai
in
n tth
he
e bbe
es
st
t ppo
os
ss
si
ib
bl
le
e eef
ff
fe
ec
ct
t ffr
ro
om
m tth
he
e EED
DL
L,
, aal
lw
wa
ay
ys
s uus
se
e
t th
he
e ccl
lu
ut
tc
ch
h aan
nd
d aac
cc
ce
el
le
er
ra
at
to
or
r ppe
ed
da
al
ls
s aac
cc
co
or
rd
di
in
ng
g tto
o tth
he
e rro
oa
ad
d
c co
on
nd
di
it
ti
io
on
ns
s.
.To ensure that the brake disc of the braked wheel does not
overheat, the EDL will automatically switch itself off if excessive
demands are placed on it. The vehicle remains operational and has
the same characteristics as a vehicle without EDL. For this reason,
the switching off of the EDL is not noticed.
As soon as the brakes have cooled off, the EDL will switch itself
back on again.
If the ABS warning lamp lights up there may be a fault present in
the EDL. Take the vehicle to a Technical Service Centre as soon as
possible!
The TCS connects automatically once the engine is started. If
necessary, it can be connected or disconnected by pressing shortly
the button located on the central console.
When the TCS is switched off a pilot light comes on.
You should normally always have the TCS on. Only in exceptional
circumstances when you want the wheels to spin should you
switch it off. For instance:
– When you are using snow chains.
– When driving in deep snow or on a soft surface.
– When the car is stuck, to “rock” it out, and

W Wh
he
en
n aac
cc
ce
el
le
er
ra
at
ti
in
ng
g oon
n aa ssl
li
ip
pp
pe
er
ry
y rro
oa
ad
d ssu
ur
rf
fa
ac
ce
e,
, ee.
.g
g.
. oon
n iic
ce
e oor
r ssn
no
ow
w,
, uus
se
e tth
he
e
a ac
cc
ce
el
le
er
ra
at
to
or
r ppe
ed
da
al
l cca
ar
re
ef
fu
ul
ll
ly
y.
. TTh
he
e wwh
he
ee
el
ls
s cca
an
n ssp
pi
in
n,
, eev
ve
en
n wwi
it
th
h EED
DL
L,
, aan
nd
d tth
hu
us
s
i im
mp
pa
ai
ir
r ddr
ri
iv
vi
in
ng
g sst
ta
ab
bi
il
li
it
ty
y.
.
W
WA
AR
RN
NI
IN
NG
G
T Th
he
e sst
ty
yl
le
e oof
f ddr
ri
iv
vi
in
ng
g mmu
us
st
t aal
lw
wa
ay
ys
s bbe
e aad
da
ap
pt
te
ed
d tto
o ssu
ui
it
t tth
he
e rro
oa
ad
d ssu
ur
rf
fa
ac
ce
e aan
nd
d
t tr
ra
af
ff
fi
ic
c cco
on
nd
di
it
ti
io
on
ns
s.
. TTh
he
e iin
nc
cr
re
ea
as
se
ed
d ssa
af
fe
et
ty
y oof
ff
fe
er
re
ed
d bby
y tth
he
e EED
DL
L ssh
ho
ou
ul
ld
d nno
ot
t
e en
nc
co
ou
ur
ra
ag
ge
e oon
ne
e tto
o tta
ak
ke
e uun
nn
ne
ec
ce
es
ss
sa
ar
ry
y rri
is
sk
ks
s.
.
W
WA
AR
RN
NI
IN
NG
G

165 Intelligent technology
Safety FirstControls and equipment Tips and Maintenance Technical Data
– To go up slopes where each traction wheel is on a surface with a
very different grip (I.e. ice on the left, dry asphalt on the right). The
EDS continues to function under these conditions.
Afterwards you should always reconnect this device.
N No
ot
te
e
For the TCS to work properly all four wheels should be the same. Otherwise
engine performance may be reduced.
⇒“Changing wheels”. K
E El
le
ec
ct
tr
ro
on
ni
ic
c SSt
ta
ab
bi
il
li
it
ty
y PPr
ro
og
gr
ra
am
m ((E
ES
SP
P)
)*
*
The ESP increases the control over the vehicle in situations such as
accelerating or in turns.
The ESP expands the functions of the ABS/TCS and decreases
under any circumstance the risk of skidding. This contributes to an
improved stability of the vehicle.The system works in the realm of speed in relation to the ABS. In
case of a failure of the ABS, the ESP will also fail.
The ESP connects automatically when the engine is switched on
and checks itself.
If needed, the system can be switched on or off by pressing the
button.
When the system is off, the ESP warning light will light up
⇒
"Warning lights" chapter.
The ESP should always be connected. Only in exceptional cases,
when the skidding effect is desired under extremely sporty
conditions, the system can be disconnected.
Afterwards the system should be reconnected.
The ABS and EDS
⇒"Switches" chapter remain connected even
when the ESP is off.
F Fu
un
nc
ct
ti
io
on
ni
in
ng
g
The electronic stability program encompasses the ABS, EDS and
TCS. In addition to all available data for these functions, the ESP
control unit needs additional measurements supplied by high
precision sensors. The measuring data consists of the speed at
which the vehicle turns around its vertical axis, acceleration,
pressure on brakes and the turn of the steering wheel.
With the help of the steering wheel sensor and the vehicle’s
speed, the desired direction is determined and constantly
compared to the vehicle’s real behavior. When differences occur,
such as incipient skidding, the ESP automatically brakes the
adequate wheel.
D Dr
ri
iv
vi
in
ng
g sst
ty
yl
le
e ssh
ho
ou
ul
ld
d aal
lw
wa
ay
ys
s bbe
e mmo
od
di
if
fi
ie
ed
d tto
o ssu
ui
it
t tth
he
e ttr
ra
af
ff
fi
ic
c aan
nd
d rro
oa
ad
d
c co
on
nd
di
it
ti
io
on
ns
s.
. TTh
he
e ggr
re
ea
at
te
er
r ssa
af
fe
et
ty
y ppr
ro
ov
vi
id
de
ed
d bby
y tth
he
e TTC
CS
S ssh
ho
ou
ul
ld
d nno
ot
t lle
ea
ad
d yyo
ou
u tto
o
t ta
ak
ke
e ggr
re
ea
at
te
er
r rri
is
sk
ks
s.
.
W
WA
AR
RN
NI
IN
NG
G


166Intelligent technology
The vehicle stabilizes through the braking force on the wheel. If the
vehicle swings out (tendency of the tail to swing out) the brakes
will act on the exterior front wheel. In case the swerve is
insufficient (tendency to leave the curve) the braking force willbe
exerted on the interior rear wheel The braking generates a noise.P Po
ow
we
er
r sst
te
ee
er
ri
in
ng
g
Do not keep the steering wheel fully turned more than 15 seconds
when the engine is switched on, as the hydraulic oil will be heated
to a high temperature by the servo pump.
T Th
hi
is
s cco
ou
ul
ld
d dda
am
ma
ag
ge
e tth
he
e ppo
ow
we
er
r sst
te
ee
er
ri
in
ng
g ssy
ys
st
te
em
m.
.
Furthermore every time you turn the steering wheel as far as it will
go with the engine off, you will hear a series of noises made by the
excessive effort of the servo pump. The engine tick over may also
be reduced for a short time.
K
T Th
he
e EES
SP
P cca
an
nn
no
ot
t oov
ve
er
rc
co
om
me
e pph
hy
ys
si
ic
ca
al
l lli
im
mi
it
ts
s.
. TTh
hi
is
s mmu
us
st
t bbe
e bbo
or
rn
ne
e iin
n mmi
in
nd
d
p pa
ar
rt
ti
ic
cu
ul
la
ar
rl
ly
y oon
n wwe
et
t oor
r iic
cy
y rro
oa
ad
ds
s.
.
T Th
he
e ddr
ri
iv
vi
in
ng
g sst
ty
yl
le
e mmu
us
st
t aal
lw
wa
ay
ys
s bbe
e aad
da
ap
pt
te
ed
d tto
o tth
he
e rro
oa
ad
d aan
nd
d ttr
ra
af
ff
fi
ic
c cco
on
nd
di
it
ti
io
on
ns
s.
.
T Th
he
e iin
nc
cr
re
ea
as
se
ed
d ssa
af
fe
et
ty
y oof
ff
fe
er
re
ed
d bby
y tth
he
e EES
SP
P ssh
ho
ou
ul
ld
d nno
ot
t een
nc
co
ou
ur
ra
ag
ge
e oon
ne
e tto
o tta
ak
ke
e
u un
nn
ne
ec
ce
es
ss
sa
ar
ry
y rri
is
sk
ks
s.
.
K
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G

167 Your vehicle and the environment
Safety FirstControls and equipment Tips and Maintenance Technical Data
Y
Yo
ou
ur
r vve
eh
hi
ic
cl
le
e aan
nd
d tth
he
e een
nv
vi
ir
ro
on
nm
me
en
nt
t
T
Th
he
e ffi
ir
rs
st
t 11,
,5
50
00
0 kkm
m –– aan
nd
d aaf
ft
te
er
rw
wa
ar
rd
ds
s
Running-in
During the first few operating hours the engine internal friction is
higher than later on when all the moving parts have bedded down.
How well this running-in process is done depends to a
considerable extent on the way the vehicle is driven during the first
1,500 km.
K
Up to 1,000 kilometres
the following general rules apply:
•D Do
o nno
ot
t uus
se
e ffu
ul
ll
l tth
hr
ro
ot
tt
tl
le
e
•D Do
o nno
ot
t ddr
ri
iv
ve
e ffa
as
st
te
er
r tth
ha
an
n 33/
/4
4 oof
f tto
op
p ssp
pe
ee
ed
d
•A Av
vo
oi
id
d hhi
ig
gh
h een
ng
gi
in
ne
e ssp
pe
ee
ed
ds
s
•Trailer towing should if possible be avoided.
From 1,000 – 1,500 km
The speed can be gradually increased to the road or engine
maximum.
K
During and after the running-in period the following
applies:
•Do not overrev the engine when cold – either in neutral or in the
gears.
All speeds and revs given are only valid when engine isp pr
ro
op
pe
er
rl
ly
y
w wa
ar
rm
m
.
F Fo
or
r tth
he
e ssa
ak
ke
e oof
f tth
he
e een
nv
vi
ir
ro
on
nm
me
en
nt
t
Do not drive with the engine speed unnecessarily high – changing up
early helps to save fuel, reduces noise and protects the environment⇒"Environment friendly and economical driving" chapter.
•Do not let engine labour – change down when engine no longer
runs smoothly.
K
• • NNe
ew
w tty
yr
re
es
s mmu
us
st
t aal
ls
so
o bbe
e ““r
ru
un
n iin
n”
” bbe
ec
ca
au
us
se
e tth
he
ey
y ddo
o nno
ot
t hha
av
ve
e mma
ax
xi
im
mu
um
m
a ad
dh
he
es
si
io
on
n aat
t tth
he
e sst
ta
ar
rt
t.
. TTh
hi
is
s mmu
us
st
t bbe
e tta
ak
ke
en
n iin
nt
to
o aac
cc
co
ou
un
nt
t bby
y ddr
ri
iv
vi
in
ng
g cca
ar
re
ef
fu
ul
ll
ly
y
d du
ur
ri
in
ng
g tth
he
e ffi
ir
rs
st
t 110
00
0 kkm
m.
.
• • NNe
ew
w bbr
ra
ak
ke
e lli
in
ni
in
ng
gs
s mmu
us
st
t aal
ls
so
o bbe
e rru
un
n iin
n aan
nd
d ddo
o nno
ot
t hha
av
ve
e tth
he
e oop
pt
ti
im
mu
um
m
f fr
ri
ic
ct
ti
io
on
n ppr
ro
op
pe
er
rt
ti
ie
es
s ddu
ur
ri
in
ng
g tth
he
e ffi
ir
rs
st
t 220
00
0 kkm
m.
. TTh
he
e ssl
li
ig
gh
ht
tl
ly
y rre
ed
du
uc
ce
ed
d bbr
ra
ak
ki
in
ng
g
W
WA
AR
RN
NI
IN
NG
G
e ef
ff
fe
ec
ct
t cca
an
n bbe
e cco
om
mp
pe
en
ns
sa
at
te
ed
d ffo
or
r bby
y mmo
or
re
e ppr
re
es
ss
su
ur
re
e oon
n tth
he
e bbr
ra
ak
ke
e ppe
ed
da
al
l.
. TTh
hi
is
s
a al
ls
so
o aap
pp
pl
li
ie
es
s wwh
he
en
n nne
ew
w lli
in
ni
in
ng
gs
s hha
av
ve
e bbe
ee
en
n ffi
it
tt
te
ed
d.
.
K
W WA
AR
RN
NI
IN
NG
G ((c
co
on
nt
ti
in
nu
ue
ed
d)
)

168Your vehicle and the environment
After the running-in period
•On vehicles with a rev counter* the maximum permissible engine
speed is shown by the beginning of the red zone on the rev
counter scale. The needle of the counter must not move into this
zone.
Extremely high engine revs will be automatically governed.
K
C Cl
le
ea
an
ni
in
ng
g tth
he
e eex
xh
ha
au
us
st
t ffu
um
me
es
s
Description
T
Th
he
e ppe
er
rf
fe
ec
ct
t ffu
un
nc
ct
ti
io
on
ni
in
ng
g oof
f tth
he
e ccl
le
ea
an
ni
in
ng
g ssy
ys
st
te
em
m ffo
or
r eex
xh
ha
au
us
st
t ffu
um
me
es
s
is of great importance for the environment-friendly functioning of
your vehicle.
Therefore, keep in mind the following points:
•Versions with a catalytic converter must only use unleaded fuel
⇒"Filling the tank" chapter.
•In vehicles with a catalytic converter never drive until the fuel
tank is completely empty. Irregular fuel supply can cause misfiring,
thus allowing unburned fuel into the exhaust system which can
cause overheating and damage to the catalyst.
•If you experience starting difficulties, loss of power or engine
problems while driving, the cause could be a failure in the ignition.In this case, fuel may be entering the exhaust system without
burning and, in this way being released into the atmosphere.
Furthermore, the catalyst could deteriorate due to overheating.
Reduce speed immediately. Have this problem fixed at the nearest
Technical Service Centre.
•Do not overload the engine with oil
⇒"Engine oil" chapter.
•Do not towstartthe vehicle for more than 50 m
⇒"Tow
start/towing" chapter.
N No
ot
te
e
Even when the cleaning system for exhaust fumes is in perfect working
order, under certain circumstances, the fumes may smell like sulfur.
This depends on the percentage of sulfur in the fuel.
Often it is sufficient to change brands or buy super unleaded.
K
•D Du
ue
e tto
o ppo
os
ss
si
ib
bl
le
e hhi
ig
gh
h tte
em
mp
pe
er
ra
at
tu
ur
re
es
s oof
f tth
he
e cca
at
ta
al
ly
ys
st
t,
, ddo
o nno
ot
t ppa
ar
rk
k iin
n
p pl
la
ac
ce
es
s wwh
he
er
re
e tth
he
e cca
at
ta
al
ly
ys
st
t iis
s eea
as
si
il
ly
y eex
xp
po
os
se
ed
d tto
o iin
nf
fl
la
am
mm
ma
ab
bl
le
e mma
at
te
er
ri
ia
al
l.
.
•D
Do
o nno
ot
t uus
se
e aad
dd
di
it
ti
io
on
na
al
l ppr
ro
ot
te
ec
ct
ti
io
on
n ffo
or
r tth
he
e bbo
od
dy
y oor
r aan
nt
ti
ic
co
or
rr
ro
os
si
iv
ve
e ppr
ro
od
du
uc
ct
ts
s ffo
or
r
s su
um
mp
ps
s aan
nd
d eex
xh
ha
au
us
st
t ppi
ip
pe
es
s,
, c
ca
at
ta
al
ly
yt
ti
ic
c cco
on
nv
ve
er
rt
te
er
rs
s oor
r hhe
ea
at
t ssh
hi
ie
el
ld
ds
s.
.T
Th
he
e
a ab
bo
ov
ve
e mme
en
nt
ti
io
on
ne
ed
d mma
at
te
er
ri
ia
al
l cco
ou
ul
ld
d iig
gn
ni
it
te
e wwh
hi
il
le
e ddr
ri
iv
vi
in
ng
g.
.
W
WA
AR
RN
NI
IN
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G

169 Your vehicle and the environment
Safety FirstControls and equipment Tips and Maintenance Technical Data
E
En
nv
vi
ir
ro
on
nm
me
en
nt
t-
-f
fr
ri
ie
en
nd
dl
ly
y aan
nd
d eec
co
on
no
om
mi
ic
ca
al
l
d dr
ri
iv
vi
in
ng
g
General notes
Three factors determine the fuel consumption, the burden on the
environment and the wear on the engine, brakes and tyres:
•The personal driving style.
•The individual conditions of the use of the car.
•Technical prerequisites.
The fuel consumption can be reduced by 10 to 15 percent by
adopting a thoughtful and economic driving style. This chapter will
help you lower pollution and save money by following
10 suggestions.
K
Suggestion 1. Thoughtful driving style
The highest fuel consumption takes place during acceleration. If
you drive in a thoughtful manner you will have to brake less and,
therefore, accelerate less. You can also let the vehicle roll, i.e.
when you can foresee that the following traffic light will be red.
K
Suggestion 2. Changing gears saves energy
Another way to save fuel is to change up as quickly as possible. If
you drive with high engine revs the car will use up more energy.
The fig. 151shows the relation between the consumption (l/100
km) and speed (km/h) in first, second, third, fourth and fifth gear.
The following rules may be helpful. Never drive more than a few
meters in first gear. When you reach 2,000 revolutions, you should
change up.
If you drive a vehicle with an automatic gearbox, press the
accelerator pedal gently. Do not press it to the kick-down position.
This way, a consumption oriented program is automatically
selected. It changes up as soon as possible and takes longer to
change down.
K
30 50 70km/h
90
l/100km
1.
2.
3.
4.
5.
B45-354PFig. 151

170Your vehicle and the environment
Suggestion 3. Avoid driving at maximum speed
Try not to drive at maximum speed. The increase of fuel
consumption, exhaust pollution and noise is disproportionate at
high speeds.
The illustration shows the relation between consumption
(l/100 km) and speed (km/h)
⇒fig. 152.
If only about 3 quarters of top speed is utilized, the fuel
consumption will be reduced by about half.
Suggestion 4. Decrease idling
It is worth switching off1)the engine in traffic jams, at railroad
crossings and at traffic lights with a long red light. The savings in
fuel after 30-40 seconds with the engine switched off is higher
than the fuel used to switch the engine on again.
K
Suggestion 5. Periodic revisions
Your fuel savings are guaranteed even before going on a trip with
periodic revisions by your Technical Service Centre. Proper engine
maintenance is not only a safety and maintenance issue but also a
fuel consumption issue.
Poor fine tuning of the engine may increase fuel consumption by
up to 10%.
Check the oil level every time you fill up. The oil consumption
depends largely on the engine load. Depending on the driving
style, the oil consumption can be up to 1.0 l/1000 km.
Another suggestion: You can also lower oil consumption by using
synthetic oils.
K
km/h
max
l/100km
B45-355PFig. 152
1)Statutory regulations must be respected.
D Dr
ri
iv
vi
in
ng
g aat
t hhi
ig
gh
h ssp
pe
ee
ed
ds
s dde
ec
cr
re
ea
as
se
es
s rro
oa
ad
d ssa
af
fe
et
ty
y.
.
K
W WA
AR
RN
NI
IN
NG
G