1994 BMW 325i auto 5 speed
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BMW
SERVICE
MANUUAS
BMW
7
Series
Service
Manual
:
1988-1994
7351,735iL,
740i,
740iL,
750iL
Robert
Bentley
ISBN
0-8376-0328-5
BMW
3
Series
Service
Manual
:
1992-1998
M3,
3181,323i,325i,
328i,
Sedan,
Coupe
and
Convertible
Robert
Bentley
ISBN
0-8376-0326-9
Glory
Days
:
When
Horsepowerand
BMW
Z3
Service
Manual
:
1996-1998
Passion
Ruled
Detroit
4-cylinder
and
6-cylinder
models
Jim
Wangers
ISBN
0-8376-0208-4
RobertBentley
ISBN
0-8376-0327-7
Alfa
Romeo
Owner's
BibleTM
BMW
3-Series
Service
Manual
:
1984-1990
Pat
Braden
with
foreword
by
Don
Black
3181,
325,325e(es),
325i(is),
and
325i
ISBN
0-8376-0707-9
Convertible
RobertBentley
ISBN
0-8376-0325-0
Ford
F-Series
Pickup
Owner's
BibleTM
Moses
Ludel
ISBN
0-8376-0152-5
BMW
5-Series
Service
Manual
:
1989-1995
5251,
530i,535i,
540i
including
Touring
Robert
Bentley
ISBN
0-8376-0319-6
BMW
5-Series
Service
Manual
:
1982-1988
528e,
5331,
535i,
535is
RobertBentley
ISBN
0-8376-0318-8
ENTHUSIAST
TITLES
Complete
Roundel
1969-1998
:30
Years
of
the
Magazine
of
the
BMW
Car
Club
of
America
(CD-ROM)
ISBN
0-8376-0322-6
A
French
Kiss
WithDeath
:
Steve
McQueen
and
the
Making
ofLe
Mans
Michael
Keyser
ISBN
0-8376-0234-3
The
Speed
Merchants
:
A
Journey
Through
The
World
of
Motor
Racing,1969-72Michael
Keyser
ISBN
0-8376-0232-7
Mustang
5
.0
Technical
Reference
&
Performance
Handbook
Al
Kirschenbaum
ISBN
0-8376-0210-6
Maximum
Boost
:
Designing,
Testing,
and
Installing
Turbocharger
Systems
Corky
Bell
ISBN
0-8376-0160-6
Volkswagen
Sport
Tuning
for
Street
and
Competition
Per
SchroederISBN
0-8376-0161-4
Sports
Carand
CompetitionDriving
Paul
Frérewithforewordby
PhilHill
ISBN
0-8376-0202-5
Automotive
Books
From
Robert
Bentley
GTI,
Golf,
and
Jetta
Service
Manual
:
1985-
The
Design
and
Tuning
of
Competition
1992
Gasoline,
Diesel,
and
Turbo
Diesel,
EnginesPhilipH
.
Smith,
6th
editionrevised
by
including
16V
Robert
Bentley
David
N
.
Wenner
ISBN
0-8376-0140-1
ISBN
0-8376-0342-0
Going
Faster
:
The
Skip
BarberRacing
Corrado
Official
Factory
Repair
Manual
:
School
Carl
Lopez
ISBN
0-8376-0227-0
1990-1994
Volkswagen
United
States
9M-f,
Ir-
Win
n
on
Alexander
with
foreword
ISBN
0-8376-0387-0
by
Mark
Martín
ISBN
0-8376-0070-7
Passat
Service
Manual
:
1990-1993,
The
Technique
of
Motor
Racing
Piero
including
Wagon
Volkswagen
United
States
Taruf
fi
with
foreword
by
Juan
Manuel
Fangio
ISBN
0-8376-0378-1
ISBN
0-8376-0228-9
Cabriolet
and
SciroccoService
Manual
:
Race
Car
Aerodynamics
1985-1993,
including
16V
Joseph
Katz
ISBN
0-8376-0142-8
RobertBentley
ISBN
0-8376-0362-5
The
Scientific
Design
of
Exhaust
and
VolkswagenFox
Service
Manual
:
1987-
Intake
Systems
Philip
H
.
Smith
and
John
C
.
1993,
including
GL,
GL
Sport
and
Wagon
Morrison
ISBN
0-8376-0309-9
RobertBentley
ISBN
0-8376-0363-3
Volkswagen
Model
Documentation
Rabbit,
Scirocco,
Jetta
Service
Manual
:
Joachim
Kuch
ISBN
0-8376-0078-2
1980-1984
Gasoline
Models,
including
Volkswagen
Beetle
:
Portrait
of
a
Legend
Pickup
Truck,
Convertible,
and
GTI
Robert
Edwin
Baaske
ISBN
0-8376-0162-2
Bentley
ISBN
0-8376-0183-5
Jeep
Owner's
BibleTM
Moses
Ludel
ISBN
0-8376-0154-1
Eurovan
Official
Factory
Repair
Manual
:
MANUUAS
Volkswagen
Inspection/Maintenance
(I/M)
Emission
Test
Handbook
:1980-1997
Volkswagen
of
America
ISBN
0-8376-0394-3
Rabbit,
Jetta
Service
Manual
:
1977-1984Diesel
Models,
including
Pickup
Truck
and
Turbo
Diesel
RobertBentley
ISBN
0-8376-0184-3
Super
Beetle,
Beetle
and
Karmann
Ghia
Official
Service
Manual
Type1
:1970-1979Volkswagen
United
States
ISBN
0-8376-0096-0
Beetle
and
Karmann
Ghia
Official
Service
Manual
Type1
:1966-1969
Volkswagen
United
States
ISBN
0-8376-0416-8
Harley-Davidson
Evolution
V
Twin
Owner's
BibleTM
Moses
Ludel
ISBN
0-8376-0146-0
Audi
100,
A6
Official
Factory
Repair
Manual
:
1992-1997,
including
S4,
S6,
quattro
and
Wagon
models
.
Toyota
Truck
&
Land
Cruiser
Owner's
Audi
of
America
.
ISBN
0-8376-0374-9
BibleTM
Moses
Ludel
ISBN
0-8376-0159-2
Audi
80,
90,
Coupe
Quattro
Official
AUDI
SERVICE
MANUUAS
The
Racing
Driver
Denis
Jenkinson
Factory
Repair
Manual
:
1988-1992
ISBN
0-8376-0201-7
including
80
Quattro,
90
Quattro
and
20-valve
models
Audi
of
America
Unbeatable
BMW
:
Eighty
Years
of
FUEL
INJECTION
ISBN
0-8376-0367-6
Engineering
and
Motorsport
Success
Ford
Fuel
Injection
and
Electronic
Engine
Audi
100,
200
Official
Factory
Repair
JeremyWalton
ISBN
0-8376-0206-8
Charles
O
Probst,
SAE
Manua1
:1988-1991
Audi
of
America
Control
:
1788-1993
.
BMW
6
Series
Enthusiast's
CompanionTM
ISBN
0-8376-0301-3
ISBN
0-8376-0372-2
Jeremy
W
.11
ISBN
0-8376-0149-5
Ford
Fuel
Injection
and
Electronic
Engine
Audi
50005
5000CS
Official
Fa
,ctory
BMW
Enthusiast's
CompanionTM
BMW
Control
:
1980-1987
Charles
O
.
Probst,
SAE
Repair
Manual
:
1984-1988
Gasoline,
Car
Club
of
America
ISBN
0-8376-0321-8
ISBN
0-8376-0302-1
Turbo,
and
Turbo
Diesel,
including
Wagon
BMW
Notecards
Series
1
Photography
by
Bosch
Fuel
In1ection
and
Engne
and
Quattro
Audi
of
America
ISBN
0-8376-
i
Klaus
Schnitzer
ISBN
0-8376-0211-4
Management
Charles
O
.
Probst,
SAE
0370-6
ISBN
0-8376-0300-5
Audi
5000,
50005
Official
Factory
Repair
Manual
:
1977-1983
Gasoline
and
Turbo
VOLKSWAGEN
OFFICIAL
SERVICE
Gasoline,
Diesel
and
Turbo
Diesel
MANUUAS
Audi
of
America
ISBN
0-8376-0352-8
New
Beetle
Service
Manual
:
1998-1999
Audi
40005,
4000CS,
and
Coupe
GT
RobertBentley
ISBN
0-8376-0385-4
Official
Factory
Repair
Manual
:
1984-1987including
Quattro
and
Quattro
Turbo
Audi
Jetta,
Golf,
GTI,
Cabrio
Service
Manual
:
of
America
ISBN
0-8376-0373-01993-early
1999,
including
VR6
and
TDI
Robert
Bentley
ISBN
0-8376-0366-8
SAAB
OFFICIALSERVICE
1992-1999
Volkswagen
of
America
Saab
90016
Valve
Official
Service
Manual
:
ISBN
0-8376-0335-8
19851993
RobertBentl
ISBN
0837603129
-ey---
Saab
900
8
Valve
Official
Service
Manual
:
1981-1988
Robert
Bentley
ISBN
0-8376-0310-2
Passat
Official
Factory
Repair
Manual
:
VOLVO
SERVICE
MANUAL
1995-1997
Volkswagen
of
America
Volve
240
Service
Manual
:
1983-1993
ISBN
0-8376-0380-3
Robert
Bentley
ISBN
0-8376-0285-8
Robert
Bentley
has
published
service
manualsand
automobile
books
since
1950
.
Please
write
Robert
Bentley,
Inc
.,
Publishers,
at
1734
Massachusetts
Avenue,Cambridge,
MA
02138,
visit
our
web
síte
athttp
://www
.rb
.com,
or
call
1-800-423-4595
for
a
free
copy
of
our
complete
catalog,
including
titles
and
service
manuals
for
Jaguar,
Triumph,
Austin-Healey,
MG,
and
other
cars
.
Page 19 of 759
Fig
.
16
.
Multimeter
or
Digital
Volt/Ohmmeter
(DVOM)
.
BMW
Special
Tools
FUNDAMENTALS
FOR
THE
DO-ITYOURSELF
OWNER
010-11
0012223
Some
of
the
more
challenging
repairs
covered
in
this
manual
cal¡
for
the
use
of
BMW
special
tools
.
This,
however,
does
not
automatically
mean
that
thejob
is
too
complicated
or
out
of
reach
of
thenovice
.
Many
of
the
BMW
special
tools
mentioned
in
this
manual
are
simplythe
best
thing
to
use
to
do
thejob
correctly
.
In
these
cas-
es,
the
tool
is
identified
with
a
BMW
part
number
.
See
your
au-
thorized
BMW
dealer
parts
department
for
information
on
how
to
order
special
tools
.
There
are
some
jobs
for
which
expensive
special
tools
are
essential,
and
not
a
cost-effective
purchase
for
one-time
repair
by
the
do-it-yourself
owner
.
This
manual
includes
such
repairs
for
the
benefit
of
these
with
the
necessary
experience
and
ac-
cess
to
tools
.
For
the
do-it-yourselfer,
the
need
for
special
tools
is
noted
in
the
text,
and
whether
or
not
BMW
dealer
service
is
recommended
.
EMERGENCIES
Changing
a
Tire
Stop
thecar
onas
flat
a
surface
as
possible,
in
a
place
where
you
canbe
easily
seen
by
other
drivers
.
Avoid
stopping
just
over
the
crest
of
a
hill
.
Turnon
the
emergency
flashers,
and
set
out
(lares
or
emergency
markers
well
behindthecar
.
Chock
the
wheel
(wheel
chock
located
in
trunk)
diagonally
opposite
to
the
one
being
changed
.
Passengers
shouldgetout
of
thecar
and
stand
well
away
from
the
road
.
Remove
the
spare
tire
from
the
spare
tire
storage
tray,
as
described
later
.
WARNING
-
If
a
tire
goes
fíat
while
drtving,
pull
well
off
the
road
.
Changing
a
tire
ona
busy
street
or
highway
is
very
dangerous
.
If
necessary,
drive
a
short
distance
on
the
fíat
tire
to
get
to
a
sale
place
.
tt
is
much
better
to
ruin
a
tire
or
rim
than
to
risk
being
hit
.
Take
the
jack
and
tools
from
the
tool
area
beneath
the
trunk
mat
.
Remove
the
spare
tire
from
the
tire
storage
tray
.
Loosen
the
wheel
bolts
while
the
car
is
on
the
ground,
but
leave
them
a
little
snug
.
Placethe
jack
in
the
lifting
point
nearest
the
wheel
beingchanged,
lifting
points
are
shown
in
Fig
.
1
and
Fig
.
2)
.
Use
a
board
to
provide
a
firm
footing
for
the
jack
if
the
ground
is
soft
.
Raise
the
car
only
lar
enough
so
that
the
wheel
is
fully
off
the
ground
and
then
remove
the
wheel
nuts
and
the
wheel
.
Insta¡¡
the
spare
wheel
.
Install
the
wheel
nuts
and
tighten
them
by
hand,
then
lower
the
car
.
With
all
wheelson
the
ground,
fully
tighten
the
nuts
in
a
crisscross
pattern
.
Torque
the
wheel
nuts
when
installing
the
wheel
.
Check
the
inflation
pres-
sure
of
the
spare
tire
.
Tightening
torques
"
Wheel
to
wheel
hub
.....
100
t
10
Nm
(74
t
7
ft-Ib)
Car
Will
Not
Start
If
the
engine
tucos
over
slowly
or
not
at
all,
especially
on
cold
mornings,
the
battery
may
not
be
sufficiently
charged
.
Jump-
starting
the
battery
from
another
car
may
help
.
WARNING
-
On
carswith
manual
transmisston,
push
starting
(or
tow
starting)
acar
ts
not
recommended
by
BMW
.
NOTE-
Be
sure
to
read
the
cautions
underJump
Starting
Car
prior
boosting
a
low
battery
.
Fatlure
to
followthe
cau-
tions
may
result
in
damage
to
the
electronic
compo-
nents
in
the
car
.
If
the
engine
is
turning
over
at
normal
speed
with
the
starter
motor,
the
battery
and
starter
are
fine
.
Check
to
make
sure
that
there
is
fuel
in
the
tank
.
Do
not
rely
on
the
fuel
gauge,
it
may
be
faulty
.
Instead,
remove
the
gas
filler
cap
and
rock
thecar
.
If
there
is
gas
in
the
tank,
you
should
hear
a
sloshing
sound
at
the
filler
neck
.
lf
there
is
plenty
offuel
in
the
tank,
see100
Engine-
General
for
in-depth
diagnostics
and
troubleshootingproce-
dures
.
EMERGENCIES
Page 22 of 759
010-14
FUNDAMENTALS
FOR
THE
DO-ITYOURSELF
OWNER
Fig
.
19
.
Instaf
rear
tow
lug
into
threaded
hole
.
if
absolutely
necessary,
cars
with
automatic
transmissions
can
be
towed
with
the
rear
wheels
on
the
ground,
butthe
tow
should
not
exceed
25
miles
(40
km),at
speeds
at
or
below30
mph
(35
km/h)
.
Be
sure
the
transmission
fluid
hasbeen
topped
off
before
starting
the
tow
.
Always
tow
thecar
with
the
transmis-
sion
lever
in
"N"
(neutral)
.
If
the
tow
must
exceed25
miles
(40
km),
add
one
quart
of
ATF
to
the
transmission,
or
better
yet,
re-
move
the
driveshaft
.
Be
sure
to
drain
or
pump
outthe
added
flu-
id
once
the
tow
has
been
completed
.
NOTE-
"
ATF
draining
and
filling
is
covered
in
240
Automatic
Transmission
.
"
Driveshaft
removal
is
covered
in
260
Driveshaft
.
EMERGENCIES
úo1W¿b
Spare
Parts
Kit
Carrying
a
basic
set
of
spare
parts
can
prevent
a
minor
breakdown
from
turning
into
a
major
annoyance
.
Many
of
the
following
itemswon't
allow
you
todo
major
repair
workon
the
car,
but
they
will
help
in
the
event
of
the
failure
of
something
that
can
disable
thecar
or
compromise
its
safety
.
Spare
Parts
Kit
-
Basic
Contents
"
Drive
belt
(V-belt
or
poly-ribbed)
"
Engine
oil
(one
or
two
quarts)
"
Engine
coolant
(1
gallonof
premixed
50/50
anti-freeze
and
water)
"
Fuse
assortment
(7
.5A,
10A,
15A,
20A)
"
Radiator
hoses
(upper
and
lower)
Spare
Parts
Kit
-
Additional
Contents
"
Exterior
lighting
bulbs
(headlight,
brakelight,
turn
signal,
and
taillight)
"
Wiper
biades
"
Brake
fluid
(new
unopened
bottle,
DOT
4
specification)
"
Main
relay
for
DME
system
Page 23 of 759
020
Maintenance
Program
GENERAL
.
.
...
.
.
.
...
.
.
.
.
.
.
.
.
.
.
.
...
.
..
020-2
BMW
Service
Indicator
......
..
....
..
...
..
.
020-2
Oil
Service
.....
.
..........
..
...
...
...
..
.
020-2
Inspection
I
and
Inspection
II
.
..
....
..
...
..
.
020-2
Resetting
Service
Indicator
....
.
....
..
...
..
.
020-3
MAINTENANCE
TABLES
..
.
.
.
.
.
........
020-3
FLUID
AND
LUBRICANT
SPECIFICATIONS
.
.
.
.
.
.
.
...
.
.
.
....
.
...
020-8
Manual
Transmission
Fluid
..
.
.
.
.
.
....
.
.
.
.
020-8
Automatic
Transmission
Fluid
.
.
.
.
.
....
.
.
.
.
020-8
Final
Drive
Gear
Oil
................
.
.
.
.
020-9
Brake
Fluid
.
.
.
.
.
................
.
.
.
.
020-9
Engine
Coolant
(Anti-freeze)
.
.
...
.
....
.
.
.
.
020-9
Power
Steering
Fluid
........
..
......
.
.
.
.
020-9
ENGINE
OIL
SERVICE
.
.
...
.
.
.
...
.
.
.
.
.
.
020-9
Engine
oil,
checking
leve¡
..
...
...
..
........
020-9
Engine
oil
and
filter,
changing
....
.
......
.
..
020-9
ENGINE
COMPARTMENT
MAINTENANCE
...
.
.
.
.
.
.
.
.
.
.
.
.
.
......
020-10
Air
filter,
replacing
.
...
...
.
.....
.
.....
.
...
020-11
Spark
plugs,
replacing
...
.
......
.
...
..
...
020-11
¡dle
Speed
.
..
...
...
....
.
......
.
...
..
...
020-12
Battery,
checking
and
cleaning
.......
..
...
020-12
Battery,
replacing
.
.....
.
.....
.
.....
..
...
020-12
Accelerator
and
Throttle
Linkage
.
.....
..
...
020-13
Engine
DriveBelts
.....
.
....
..
...
...
...
.
020-13
V-belt,
replacing
(4-cylinder
engines
built
up
to
1/94)
..
....
.
020-13
Poly-ribbed
belt,
replacing
(4-cylinder
engines
built
from
1194
and
all
6-cylinder
engines)
.
.
....
..
......
020-13
Cooling
System
Service
.
...
..
....
..
....
..
020-14
Power
steering
fluid,
checking
leve¡
.
..
....
.
.
020-14
Oxygen
Sensors
....
...
..
..
....
.
.....
.
.
020-15
MAINTENANCE
PROGRAM
020-1
UNDER-CAR
MAINTENANCE
.
..
.
...
.
.
.020-16
'
Fuel
filter,
replacing
...
.
.....
..
.....
..
..
.020-16
Tires,
checking
inflation
pressure
.
.....
.
....
020-17
Tires,
rotating
...
..
.....
..
....
..
....
.
....
020-17
Wheels,
aligning
..
.....
.
...........
.
....
'020-17
Brake
system,
inspecting
.
.
....
.
.....
..
...
020-17
Brake
pad/rotor
wear,checking
.
......
.
....
020-17
Brake
fluid,
replacing
.........
..
.
..
..
.
020-17
Parking
brake,
checking
......
.
.....
..
....
020-17
Exhaust
system,
inspecting
....
..
.....
.
...
.020-18
Manual
Transmission
Senrice
..
..
.....
.
....
020-18
Manual
transmission
fluida
checking
and
filling
..
.
....
..
.
.
..
..
....
020-18
AutomaticTransmission
Service
.
....
...
....
020-18
Front
suspension
and
steeringlinkages,
inspecting
..
.
:.....
.
....
..
.....
..
...
.
.020-18
Rear
suspension,
inspecting
.
..
...
...
....
..
020-18
Final
drive
oil
leve¡,
checking
.
.
.
...
....
...
..
020-18
Fuel
tank
and
fuel
lines,
inspecting
.
.....
....
020-19
Clutch
fluid,
checking
...
...
...
...
....
.....
020-19
Drive
axle
joint
boots,
inspecting
...
..
.....
..
020-19
BODY
AND
INTERIOR
MAINTENANCE
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
...
.
.020-19
Windshield
Wiper
Blade
Maintenance
....
.
.
020-19
Body
and
hinges,
lubricating
.
.....
..
......
.
020-19
Seat
Belts
...
..
...
...
...
..
.....
..
.....
.
.
020-20
Exterior
Washing
..
...
...
..
.
.
...
..
......
.020-20
Waxing
.....
..
...
...
...
..
.....
..
.......
020-20
Polishing
..
...
...
...
....
..
..........
..
.
.'020-20
Washing
Chassis
.
...
....
.
....
..
.....
.
...
020-20
Special
Cleaning
.
.
.....
..
...
.
.....
..
..
.020-20
Interior
Care
.
....
..
....
..
..
.
.
......
.
...
020-20
Leather
Upholstery
and
Trim
...
..
....
...
...
020-20
TABLES
a
.
Oil
Service
......
...
.
..
.............
...
---
020-4
b
.
Inspection
1
Service
..
.
.
.............
....
...
020-5
c
.
Inspection
11
Service
.
.
...
...........
..
.
..
..
020-6
d
.
Scheduled
Maintenance-Time/Mileage
Intervals
..
020-7
e
.
Fluids
and
Lubricants
..
...
...........
.....
..
020-8
Page 52 of 759
100-
1
0
ENGINE-GENERAL
Table
d
.
OBD
I
Fault
(Blink)
Codes
(continued)
(1992-1995
modeis
only)
Graphic
representation
of
flashing
Check
Engine
light
fault
code
:
1221
-
;
5
Seconds
.
;--~
2
.5
r
----------------
Check
Engine
light
on
Fault
code
and
meaning
Corrective
action
Check
Engine
light
off
Code
1243
:
Crankshaft
position
sensor
(DME
3
.3
.1
only)
Test
crankshaft
position/rpm
sensor
and
wiring
from
sensor
lo
DME
control
module
.
Repair
Group
120
Code
1244
:
Camshaft
position
sensor
(DME
3
.3
.1
only)
Test
camshaft
position
sensor
and
wiring
fromsensor
to
DME
con-
trol
module
.
Repair
Group
130
Code
1245
:
Electronic
transmission
control
intervention
(DME
3
.3
.1
Check
wiring
between
DME
control
module
and
auto
.
transmission
only)
control
module
Code
1247
:
Ignition
secondary
monitor
(DME
3
.3
.1
only)
Check
secondary
voltage
lo
ignition
coils
.
Check
wiringat
ignition
coils
.
Repair
Group
120
Code
1251
:
Fuel
injector
#1
(DME
3
.113
.3
.1
only)
1
Test
injector
operation/signal
lo
injector
.
Repair
group130
Code
1252
:
Fuel
injector
#2
(DME
3
.113
.3
.1
only)
Test
injector
operation/signal
lo
injector
.
Repair
group130
Code
1253
:
Fuel
injector
#3
(DME
3
.1/3
.3
.1
only)
Test
injector
operation/signal
to
injector
.
Repair
group130
Code
1254
:
Fuel
injector
#4
(DME
3
.1/3
.3
.1
only)
Test
injector
operation/signal
to
injector
.
Repair
group
130
Code
1255
:
Fuel
injector
#5
(DME
3
.1/3
.3
.1
only)
Test
injector
operation/signal
to
injector
.
Repair
group130
Code
1256
:
Fuel
injector
#6
(DME
3
.1/3
.3
.1
only)
Test
injector
operation/signal
lo
injector
.
Repair
group130
Code
1261
:
Fuel
pump
control
Test
fuel
pump
relay
and
fuel
pump
circuit
.
Repairgroup
160
Code
1262
:
Idle
speed
control
Test
idleair
controlvalve
and
signalto
valve
.
Repair
Group
130
Code
1263
:
Fuel
tank
evaporative
(EVAP)
system
Test
EVAP
purge
valve
.
Repair
Group
160
Code
1264
:
Oxygen
sensor
heater
1
Test
oxygen
sensorheater
and
heater
relay
.
Repair
group
130
Code
1265
:
Check
engine
lamp
(DME
3
.3.1
only)
1
Test
for
faulty
bulb
or
wiring
.
Electrical
Wiring
Diagrams
Code
1266
:
VANOS
(DME
3
.3
.1
only)
1
Test
VANOS
solenoid
.
Check
for
signal
to
VANOS
solenoid
.
Code
1267
:
Air
pump
relay
control
(DME
3
.3
.1
only)
Test
air
pump
relay
and
wiring
(where
applicable)
Electrical
Wiring
Diagrams
Code
1271
:
Ignition
coil
#1
(DME
3
.3.1
only)
Test
ignitioncoil
and
wiring
toignitioncoil
.
Repair
Group
120
Code
1272
:
Ignition
coil
#2
(DME
3
.3.1
only)
Test
ignitioncoil
and
wiring
loignitioncoil
.
Repair
Group
120
Code
1273
:
Ignition
coil
#3
(DME
3
.3.1
only)
Test
ignitioncoil
and
wiring
loignitioncoil
.
Repair
Group
120
Code
1274
:
Ignítion
coil
#4
(DME
3
.3.1
only)
Test
ignitioncoil
and
wiring
toignitioncoil
.
Repair
Group
120
Code
1275
:
Ignitioncoil
#5
(DME
3
.3.1
only)
Test
ignition
coil
and
wiring
loignitioncoil
.
Repair
Group
120
Code
1276
:
Ignition
coil
#6
(DME
3
.3.1
only)
Test
ignitioncoil
and
wiring
loignitioncoil
.
Repair
Group
120
Code
1281
:
DME
control
module
memory
supply
(DME
3
.3
.1
only)
Check
voltage
supply
from
battery
lo
DME
control
module
.
Electri-
Code
1282
:
Fault
code
memory
(DME
3
.3.1
only)
Check
DME
control
module
inputs/outputs
.
Control
module
may
be
faulty
.
Repair
Group
130
Code
1283
:
Fuel
injector
output
stage
(DME
3
.3
.1
only)
Check
DME
control
module
inputs/outputs
.
Control
module
may
be
faulty
.
Repair
Group
130
DRIVEABILITY
TROUBLESHOOTING
cal
Wiring
Diagrams
Page 53 of 759
Graphic
representation
of
flashing
Check
Engine
light
fault
code
:
1221
-
;
5
Seconds
.
~-
2
.5;-
Fault
code
and
meaning
Corrective
action
Code
1286
:
Knock
control
test
pulse
(DME
3
.3
.1
only)
Check
DME
control
module
inputs/outputs
.
Control
module
may
be
faulty
Repair
Group
130
Code
1000
(light
remains
off)
:
End
of
fault
code
output-all
fault
codes
have
been
displayed
.
No
~
corrective
action
necessary
.
Repeat
test
if
necessary
Code
1444
:
No
more
faults
.
No
corrective
action
necessary
.
This
code
must
be
present
lo
erase
fault
memory
Basic
Requirements
Preventive
Maintenance
The
following
list
contains
basic
checks
that
should
be
made
when
experiencing
driveability
problems
.
1
.
Check
intake
(induction)
system
for
leaks
.
Check
for
cracked,
loose,
or
disconnected
hoses
and
duct
work
.
Check
that
all
hose
clamps
are
tight
.
NOTE-
An
air
leak
allows
unmeasured
airto
enter
the
engine,
offen
resulting
in
an
in
overly
lean
fuel
mixture
and
causing
driveability
problems
which
will
cause
the
Check
Engine
light
to
come
on
.
Table
d
.
OBD
I
Fault
(Blink)
Codes
(continued)
(1992-1995
models
only)
7
-
1
--------------
Check
Engine
light
on
ENGINE-GENERAL
100-
1
1
Check
Engine
light
off
The
condition
of
the
fuel,
ignition
and
emission
controlsys-
tem
components
has
a
directeffect
onengineperformance
and
driveability
.
BMW
specifies
maintenance
of
certain
parts
at
regular
intervals
lo
keep
the
engine
in
proper
tune
.
Extend-
ing
maintenance
intervals
beyond
the
time
or
mileagerecom-
mended
bythe
manufacturer
can
adversely
affect
the
way
the
engine
runs
.
When
troubleshooting
driveability
problems,
a
good
starting
point
is
to
perform
a
major
engine
service,par-
ticularly
if
one
is
overdue
.
For
maintenance
schedules,
major
engine
service
and
other
driveability-related
maintenance
procedures,
see020
Maintenance
Program
.
Basic
Engine
Settings
2
.
Check
that
the
battery
isin
good
condition
.
Check
that
the
cables
are
tight
and
free
of
corrosion
at
both
ends
.
Idle
speed,
idle
mixture
(%CO),
and
ignition
timing
are
not
Check
that
all
related
ground
points
are
firmly
connect-
adjustable
.
The
adaptive
engine
management
system
is
de-
ed
and
in
good
condition
.
Check
al¡
harness
connectors
signed
lo
automatically
compensate
for
changes
in
engine
op-
for
damage
and
corrosion
.
erating
conditions,
although
the
adaptive
range
is
limited
.
Once
these
limits
are
exceeded,
driveability
problems
usually
3
.
Check
for
prwer
and
ground
at
the
Engine
Control
become
noticeable
.
Module
(ECM)
.
Check
the
main
grounds
for
the
ECM
.
See130
Fuel
Injection
.
NOTE-
If
the
DME
adaptive
limits
are
exceeded,
the
Check
En-
4
.
Check
the
fuses
.
Check
for
sufficient
fuel
in
the
tank
.
If
gine
light
will
come
on,
indicating
an
emission
related
the
engine
ranout
of
fuel,
it
will
take
a
little
time
to
re-
fault
.
See
130
Fuel
Injection,
store
fuel
pressure
.
See
160
Fuel
Tank
and
Fuel
Pump
.
Oxygen
Sensors
5
.
Check
for
spark
at
the
spark
plugs
.
If
the
tachometer
needle
bounces
while
the
engine
is
crankedby
the
A
high
oxygen
level
in
the
engine
exhaust
indicates
a
lean
starter
then
the
ignition
system
is
probably
working
cor-
air-fuel
mixture
and
a
low
oxygen
level
indicates
a
rich
mix
rectly
.
See
120
Ignition
System
.
ture
.
The
oxygen
sensor,
shown
in
Fig
.
10,
measures
the
oxy-
gen
content
in
the
exhaust
gasand
generates
a
variable
6
.
Check
for
any
faults
through
the
On-Board
Diagnostics
voltage
signal
.
Using
that
feedback
signal
asan
input,
the
system
.
See
On-Board
Diagnostics
(OBD)
.
DME
control
module
fine
tunes
the
air-fuel
mixture
.
DRIVEABILITY
TROUBLESHOOTING
Page 149 of 759
FUEL
INJECTION
130-
3
Fuel
metering
.
The
ECM
meters
fuel
bychanging
the
The
engine
management
system
compensates
automatical-
opening
time
(pulsewidth)
of
the
fuel
injectors
.
To
ensure
that
ly
for
changes
in
the
engine
due
to
age,
minor
wear
or
small
injector
pulsewídth
is
the
only
factor
that
determines
fuel
me-
problems,
such
as
a
disconnected
vacuum
hose
.
Asa
result,
tering,fuel
pressure
is
maintained
bya
fuel
pressure
regula-
idle
speed
and
mixture
do
not
need
lo
be
adjustedas
partof
tor
.
The
injectors
are
mounted
lo
a
common
fuel
supply
called
routine
maintenance
.
the
fuel
rail
.
The
ECM
monitors
engine
speed
to
determine
the
duration
NOTE-
ofinjector
openings
.
Other
signals
to
the
ECM
help
determine
Poordriveabilitymaybe
encountered
when
the
batteryis
injector
pulse
time
for
different
operating
conditions
.
A
tem-
disconnected
and
reconnected
.
when
the
battery
is
dis-
connected,
the
adaptive
memory
is
lost
The
system
will
perature
sensor
signals
engine
temperature
for
mixture
adap-
readaptafterabout
ten
minutes
of
drfving
.
tion
.
A
throttle
position
sensor
signals
throttle
position
.
The
exhaust
oxygen
sensor(s)
signal
information
about
combus-
tion
efficiency
for
control
of
the
air-fuel
mixture
.
1992
to
1995
DISA
(Dual
Resonance
Intake
System)
engines
are
equipped
with
a
single
sensor
.
1996
and
later
(OBD
II)
engines
are
equipped
with
an
oxygen
sensor
before
TheE36
4-cylinder
engine
is
equipped
with
a
dual
intake
andone
after
each
catalytic
converter
.
Forexample,the
M52
runner
system,
termed
DISA
.
DISA
offers
the
advantages
of
engine
is
equipped
withfour
oxygen
sensors
.
both
short
and
long
intake
pipes
.
Long
intake
runners
are
most
useful
at
low
to
medium
engine
rpm
for
producing
good
Idle
speed
control
.
ldle
speed
is
electronically
controlled
torque
characteristics
.
Short
intake
runners
produce
hígherviathe
idle
speed
control
valve,
which
maintains
idle
speed
by
horsepower
at
hígher
engine
speeds
.
bypassing
varying
amounts
of
air
around
theclosed
throttle
valve
.
Idle
speed
is
not
adjustable
.
NOTE-
Knock
(detonation)
control
.
Knock
sensors
monitor
and
The
term
DISA
comes
from
the
German
words
Differen-
control
ignition
knock
through
the
ECM
.
The
knock
sensors
zierte
Sauganlage,
and
can
roughlybe
translated
as
"dif-
fering
intake
manifold
configuration
."
See
100
Engine-
function
like
microphones
and
are
able
to
convert
mechanical
General
foradditional
information
on
DISA
operation
.
vibration
(knock)
into
electrical
signals
.
The
ECM
is
pro-
grammed
to
react
to
frequencies
that
are
characteristic
of
en-
Manifold
construction
:
The
intake
manifold
is
a
two-piece
gine
knock
and
adapt
the
ignition
timing
point
accordingly
.
metal
construction,
with
a
pair
of
runners
in
thetop
section
See120
Ignition
System
for
further
details
.
and
four
runners
in
the
lower
section
.
A
butterfly
valve
is
in-
stalled
in
the
lower
section,
enabling
the
DISA
solenoid
toiso-
NOTE-
late
one
pair
of
runners
from
the
other
pair
.
See
Fig
.
2
.
The
1992
M50
engine
is
not
equipped
with
knock
sen-
Operation
.
With
the
DISA
butterfly
valve
closed,
the
pipes
sors
.
All
other
engines
are
equipped
with
two
knock
in
thetop
half
of
the
manifold
act
together
with
the
ram
air
sensors
.
pipes
in
the
lower
halfto
producea
single,
long
air
intake
pipe
for
each
cylinder
.
See
Fig
.
3
.
The
column
of
aír
oscíllating
in
Basic
Engine
Settings
this
combined
pipe
significantly
increases
engine
torque
in
the
medium
rpm
range
.
Idle
speed,
idle
mixture
(%CO),
and
ignition
timing
arenot
adjustable
.
The
adaptive
engine
management
system
is
de-
signed
to
automatically
compensate
for
changes
in
engine
op-
eratingconditions,
although
the
adaptive
range
is
limited
.
Once
these
limits
are
exceeded,
driveability
problems
usually
be-
come
noticeable
.
Above
approximately
4,800
rpm,
the
butterfly
valve
between
the
intake
air
pipes
for
the
two
cylinder
groups
is
opened
.
The
shorter
pipes
in
the
lower
manifold
section
now
become
the
main
suppliers
of
ram
air
to
the
cylinders,yielding
greater
pow-
er
at
the
upper
end
of
the
engine
rpm
range
.
See
Fig
.
4
.
Control
components
.
The
DISA
butterfly
valve
is
actuated
NOTE-
electro-pneumatically
via
the
engine
control
module
(ECM)
.
lf
the
system
adaptive
limits
are
exceeded,
the
Check
The
valve
begins
to
open
as
engine
speed
rises
aboye
4,840
Engine
light
will
most
likely
come
on,
indicating
an
rpmand
closes
below
4,760
rpm
.
The
action
of
the
valve
is
de-
emissions-
related
fault
For
Check
Engine
light
diag-
liberately
delayed
to
prevent
it
from
opening
and
closing
repeat-
nostics,
see100
Engine-General
.
edly
within
a
short
time
.
GENERAL
Page 175 of 759
Tableh
.
ECM
Pin
Assignment--Bosch
DME
M1
.7
Pin
1
Signal
1
Component/function
1
Signal
45
Notused
46
Notused
47
Notused
48
Output
A/C
compressor
cut-out
Compressor
control
relay,
terminal
85
49
Notused
50
Notused
51
Output
Cyl
.
4
ignition
coil
control
Cyl
.
4
ignition
coil
52
Output
Cyl
.
2
ignition
coil
control
Cyl
.
2
ignition
coil
53
Not
used
54
Input
Battery
voltage
from
engine
control
module
Engine
control
module
relay,
terminal
87a
55
Ground
Ground,
ignition
Ground
point
56
Input
Ignition
switch,
terminal
15
Ignition
switch,
terminal
15
57
Notused
58
Not
used
59
Output
Throttleposition
sensor
and
volume
air
flow
sensor
Reference
voltage
(5
VDC)
60
Input
Programming
voltage
Data
link
connector
61
Notused
62
Notused
63
Notused
64
Input
Ignition
timing
intervention
Transmission
control
module
(EGS)
65
Input
Drive
range
P/N
Automatic
transmission
range
switch
66
Notused
67
Input
Crankshaft
position
RPM
sensor
Crankshaft
position
RPM
sensor
68
Input
Crankshaft
position
RPM
sensor
Crankshaft
position
RPM
sensor
69
Notused
70
Input
Oxygen
sensor
signal
Heated
oxygen
sensor
71
Ground
Oxygen
sensor
signal
ground
Heated
oxygen
sensor
72
Notused
73
Input
Vehicle
speed
signal
Instrument
cluster
74
Output
Engine
speed
signal
Instrument
cluster
75
Not
used
76
Input
Volume
air
flow
sensor
Volume
air
flow
sensor
77
Input
Intake
air
temperature
sensor
(IAT)
Intake
air
temperature
sensor
(IAT)
78
Input
Engine
coolant
temperature
Engine
coolant
temperature
sensor
79
Notused
80
Not
used
81
Input
Drive-away
protection
signal
(code)
On-boardcomputer
82
Not
used
83
Notused
84
Not
used
85
Input
A/C
pressure
Pressure
switch
86
Input
A/C
switch
Integrated
climate
regulation
control
module
87
Output
RxD
diagnosisdata
line
Data
link
connector
88
Output-Input
TxD
diagnosisdata
line
l
Data
link
connector
FUEL
INJECTION
130-
2
9
ECM
PIN
ASSIGNMENTS