010-
8
FUNDAMENTALSFORTHE
DO-ITYOURSELF
OWNER
TOOLS
Mostmaintenance
can
be
accomplished
with
a
small
selec-
tion
of
the
right
tools
.
Toolsrange
in
quality
from
inexpensive
junk,
which
may
brakk
at
first
use,
tovery
expensive
and
well-
made
tools
for
the
professional
.
The
best
tools
for
most
do-it
yourself
BMW
owners
He
somewhere
in
between
.
O
Many
reputable
tool
manufacturers
offer
good
quality,
mod-
erately
priced
tools
with
a
lifetime
guarantee
.
These
are
your
best
buy
.
They
cost
a
little
more,
but
they
are
good
quality
tools
that
will
dowhat
is
expected
of
them
.
Sears'
Craftsman®
line
is
one
such
source
of
good
quality
tools
.
Some
of
the
repairs
covered
in
this
manual
require
the
use
of
special
tools,
suchas
a
custom
puller
or
specialized
electrical
test
equipment
.
These
special
tools
are
called
out
in
the
text
andcan
be
purchased
through
an
authorized
BMW
dealer
.
As
an
alternative,
some
special
tools
mentioned
may
be
pur-
chased
from
the
following
tool
manufacturers
andlor
distribu-
tors
:
"
Assenmacher
Specialty
Tools
6440
Odell
Place,Boulder,
CO
80301
(303)
530-2424
"
Baum
Tools
Unlimited
.
Inc
.
PO
.
Box
87,
Longboat
Key,
FL
34228
(800)
848-6657
"
Schley
Products
Inc
.
5350
E
.
Hunter
Ave
.,
Anaheim
Hills,
CA
92807
(714)
693-7666
"
Zelenda
Machine
and
Tool
Corp
.
66-02
Austin
Street,
Forest
Hills,
NY
11375
(718)
896-2288
Basic
Tool
Requirements
The
basic
hand
tools
described
below
canbe
used
to
accom-
plish
most
of
thesimple
maintenance
and
repair
tasks
.
Fig
.
8
.
Types
of
wrench
heads
.
From
left,
open-end,
12-point
box-
Screwdrivers
.
The
common
fíat-blade
type
and
the
Phillips
end,6-point
box-end,
fiare
nut
.
type
will
handlealmost
all
screws
used
on
BMWs
.
Two
orthree
different
sizes
of
each
type
will
be
required,
since
a
screwdriver
The
cómbination
wrench
is
the
most
universal
.
It
hasone
of
the
wrong
size
will
damage
the
screw
head
.
See
Fig
.
7
.
open-end
andone
box-end
.
10mm
and
13mm
wrenches
arethe
most
common
sizes
needed
.
A
more
complete
set
of
A
complete
set
of
screwdrivers
should
also
include
Torx@
wrenches
would
inciude
6mm
through
19mm
sizes
.
typescrewdrivers
.
Wrenches
.
Wrenches
come
in
different
styles
for
different
uses
.
Fig
.
8
shows
several
.
The
basic
open-end
wrench
is
the
most
widely
used,
but
grips
on
only
two
sides
.
It
can
spread
apart
and
slip
off
more
easily
.
The
box-end
wrench
has
better
grip,
on
al¡
six
sides
of
a
nut
or
bolt
.
A
12-point
box-end
can
loosen
a
nut
or
bolt
where
there
is
less
room
for
movement,
while
a
6-point
box-end
provides
bet-
ter
grip
.
Forhex
fasteners
on
fluid
lines,
like
brake
lines
and
fuel
lines,
a
fiare-nut
wrench
offers
the
acivantages
of
a
box-end
wrench
with
a
slot
that
ailows
it
to
fit
over
the
line
.
TOOLS
B005FNG
Fig
.
7
.
Common
flat-blade
(top)
and
Phillips
(bottom)
screwdrivers
.
Offset
screwdríver
(right)
is
used
for
screws
with
limited
ac-
cess
.
B002FNG
Sockets
.
Socketsperform
the
same
job
asbox-end
wrench-
es,
but
offer
greater
flexibility
.
They
are
used
with
a
ratchet
han-
dle
for
speed
and
conveniente
and
can
be
combined
with
extensions
and
universal
joints
(swivels)
to
reach
fasteners
more
easily
.
Sockets
come
with
different
size
connections
to
drive
handies
or
extensions,
called
the
drive
size
.
The
most
common
drive
sizes
are
1
/4
in
.,
318
in
.,
and
1
/2
in
.
Sockets
come
in
6-point
and
12-point
styles
.
For
use
with
a
ratchet,
the
6-point
offers
a
better
grip
on
tight
nuts
and
bolts
.
6mm
to
19mm
sockets
arethe
most
needed
sizes
.
Below
is
a
list
oftypical
bolt
diameters
and
the
corresponding
wrench
siz-
es
.
