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Disc brakes
Dis c bra k e s f urnish o ptim u m d e c e l era -
tio n a n d bra kin g c o ntrol a n d gre a t e r
fa d e re sista n c e u n d er h e avy u s e .
W h e n th e v e hicle is drive n o nly o c c a-
sio n ally, d urin g e xte n d e d p erio d s w h e n
th e v e hicle is n ot us e d a t all, a n d in
o p eratin g c o n ditio n s w h e re bra k e a p pli-
c atio n s are le ss fre q u e nt, th ere is a n
in cre a s e d te n d e n c y for c orro sio n of th e
dis c s a n d a c c u m ulatio n of c o nta min a -
tio n o n th e bra k e p a d s. T his o c c urs
b e c a u s e th e minim al pre ssure th a t m u st
b e e x erte d b y th e p a d s to cle a n th e
dis c s b y bra k e a p plic atio ns is n ot
re a c h e d .
If th e bra k e disc s are c orro d e d, th e y w ill
te n d to r e s p o n d to bra kin g w ith a
p uls a tin g e ff e ct th at e v e n e xte n d e d
bra k e a p plic a tio ns will f ail to c ure .
F or y o ur o w n s af ety: u s e o nly
bra k e p a ds th at B M W h a s
a p prov e d for y o ur p artic ular v e hicle
m o d e l. B M W c a nn o t e v alu ate n o n-
a p prov e d bra k e p a d s to d e t e rmin e if
th e y are suite d f or us e , a n d th erefore
c a nn ot e ns ur e th e o p e ratin g s af ety of
th e v e hicle if th e y are installe d . <
Driving notes
W h e n drivin g in w e t c o n ditio ns a n d in
h e a vy rain, it is e ff e ctiv e to a p ply light
pre ssure to th e bra k e s e v ery f e w mile s
or kilo m e ters. B e a w are of traffic c o n di-
tio n s to e ns ur e th at this m a n e uv e r d o e s
not e n d a n g er oth e r ro a d u s e rs. T h e
h e at w hi c h is g e n erate d b y th e bra k e
a p pli c a tio ns h elp s to dry th e bra k e
p a d s a n d dis c s.
M a xim u m bra kin g forc e is o b t ain e d
w hil e th e w h e els are n ot lo c k e d, b ut
rath er w h e n th e y ar e still b arely turnin g
im m e d iately prior to lo c kin g. A B S m ain -
tain s this state a uto m atic ally. If th e
a ntilo c k bra k e syste m e v er f ails, y o u
sh o uld r e v ert t o p u m pin g th e bra k e s
(ref er to p a g e 1 2 8).
E xte n d e d or ste e p m o u ntain d es c e nts
sh o uld b e driv e n in th e g e ar in w hi c h
only minim al p erio dic bra k e a p pli c a tio n
is re q uir e d. This a voi d s e x c e s siv e strain
on th e bra k e s a n d p o ssibl e
im p airm e nt of th e bra kin g eff e ct.
Yo u c a n f urth er in cre a s e th e e n gin e's
bra kin g eff e ct b y s ele ctin g a lo w er g e ar,
d o w n shiftin g a s f ar a s first g e ar. W h e n
drivin g a v e hicl e with a uto m atic tra ns-
mis sio n, yo u c an still d o w n s hift into first
g e ar. R ef er to p a g e 7 4 .
If e n gin e bra kin g sh o uld prov e to b e
in a d e q u a t e , yo u sh o uld still a voi d
e xte n d e d, c o ntin u o us bra kin g. In ste a d
of m aintaining lo w to m o d erate p re s-
sure ov er a n e xte n d e d p erio d of tim e ,
yo u s h o uld d e c elera t e b y a p plyin g
m ore su bst a ntial pre ssure to th e bra k e
p e d al (w at c h f or f ollo w in g traffic),
re l e asin g th e p e d al, a n d th e n r e p e atin g
th e a p plic atio n (sta g g ere d bra kin g). T h e
c o oling p h as e s b etw e e n a ctive bra kin g
int e rv als pr e v e nt th e bra k e s fro m ov er-
h e atin g , th u s e ns urin g th at f ull bra kin g
c a p a city re m ains a vaila ble at all tim e s.
D o n ot c o a st w ith th e clut c h
d e pre ss e d or w ith th e shift le v e r
or s ele ctor le v er in N e utral. D o n ot driv e
with th e e n gin e shut off. T h e e n gin e
provid e s n o bra kin g e ff e c t w h e n th e
clutc h is d e pre ss e d or th e tra n s missio n
is in N e utral, a n d th ere is n o p o w er-
assist f or bra kin g or ste e rin g w h e n th e
e ngin e is n ot run nin g . N ev er allo w flo or
m ats, c arp e ts or a n y o th er o bje cts to
protru d e into th e are a arou n d th e b ra k e,
clutc h or a c c elerator p e d als, w hic h c an
o b stru ct p e d al tra v el. <
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