Mercedes-Benz 300 SD-TURBO DIESEL 1983 User manual

300 SD -
TURBO DIESEL Mercedes-Benz

Driv o Sensibly — S ve Fuel
Fuel consumption depends to gre t
extent on driving h bits nd oper ting
conditions.
In order to s ve fuel you should:
• ensure th t tire pressures re
correct
• not c rry unnecess ry lo ds
• remove ski r cks or roof-mounted
lugg ge r cks when not in use
• not w rm up your engine t idle
nd with the vehicle t st ndstill
• void frequent cceler tion nd
deceler tion
• void frequent br king
• void unnecess rily high speeds
• h ve ll the m inten nce jobs
specified by us c rried out t
regul r interv ls by
MERCEDES-BENZ service st tion.
Driving in low temper ture we ther, in
stop- nd-go city tr ffic nd on short
hops, nd in hilly country s well,
incre ses fuel consumption.

300SD-
TURBO DIESEL
Type 126 D
1983

You h ve chosen to drive MERCEDES-BENZ, c r in whose construction
nd production we h ve t ken gre t p ins bec use we believe th t qu lity is
not m tter of ch nce.
Perh ps you h ve lre dy h d experience with MERCEDES, m ybe this is
your first c r from the DAIMLER-BENZ comp ny. In both c ses — for your
own benefit — ple se re d this owner’s m nu l before putting it w y. Even
though you h ve been driving c r for ye rs, some things in this c r m y be
new to you, nd this m nu l cert inly cont ins few hints which will help you
to m ke the most of your new c r.
We wish you s fe nd ple s nt motoring.
DAIMLER-BENZ Aktiengesellsch ft
3

Special equipment is also described
in this manual, including operating
instructions wherever necessary.
Since there are special-order items,
the descriptions and illustrations
herein may vary slightly from the
actual equipment of your vehicle.
If there are any equipment details that
are not shown or described in this
Owners Manual, your MERCEDES-
BENZ dealer will be glad to inform you
of correct care and operating proce
dures.
Vehicle Oper tion
instruments nd Controls .
instrument Cluster ............
Keys, Doors ......................
M ster Key nd
Supplement ry Key
Fl t Key ..........................
Obt ining Repl cement
Keys ..............................
Opening, Locking nd
Unlocking of Doors
Centr l Lock System ...
Se ts ...................................
Electric l Adjustment of
Driver’s nd Front
P ssenger’s Se ts ........
S fety He drests ..........
Orthop edic Se t B ck .
Arm Rest (Front Se ts).
Arm Rest (Re r Se t) . .
Se t He ter ................
Se t Belts ....................
The l st p ge
Wh t you should know t the g s
st tion
Contents
Controls ....................................... 22
Steering Lock ........................... 22
Lighting Switch ...................... 23
12 Combin tion Switch ............... 24
14 Cruise Control ......................... 25
Autom tic Clim te Control 26
|4 V rious Equipment ..................... 31
14 Exterior M irrors ........................ 31
Inside Re r View Mirror 31
14 Sun Visors ................................ 32
Sliding R oof............................. 32
Interior L m ps ........................ 33
He ted Re r Window .............. 33
16 Electric Lighter .......................... 34
Shelf below Re r Window .... 34
Electric Window Lifters 34
j® R dio ............................................. 35
18
18
19
19
20
5

Contents
Driving
Hood ............................................. 42
Regul r Inspections .................... 43
P rking Br ke ............................... 44
St rting nd Turning
off the Engine .............................. 44
St rting nd Shifting Ge rs 46
S fe Driving ................................. 48
Br ke P d We r Indic tor
L mp ......................................... 50
Br ke Fluid ............................... 50
Ch rge Indic tor L m p 50
Oil Pressure G uge ................ 50
Cool nt Temper ture G uge . 50
Emission Control .................... 51
Engine Oil Consumption 51
The First 1500 km/1000 Miles ... 51
Speci l Oper ting Conditions... 52
Winter Driving .......................... 52
Hints for Driving ....................... 52
High Altitude Correction
Device ....................................... 53
Tire Ch ins ............................... 53
Tr veling Abro d .................... 53
Vehicle Care
MERCEDES-BENZ M inten nce
System ......................................... 56
Severe Oper ting Conditions . 56
Engine Oil Ch nge nd Filter
Ch nge ..................................... 57
Autom tic Tr nsmission —
Fluid nd Filter Ch nge 57
Sp re P rts Service ..................... 57
Cle ning nd C re of the Vehicle 58
Jobs rel ted to C re .............. 59
Practical Hints
Ash tr ys .................................... 62
Re r Se t Cushion ...................... 62
Bleeding the Fuel System 63
Turning off Engine M nu lly .... 63
First Aid Kit .................................. 64
Lugg ge or Ski R cks ................ 64
Sp re Wheel, J ck,
Vehicle Tool Kit .......................... 64
Wheels, Tires, Ch nging Wheels 65
Wheels, Tires .......................... 65
Ch nging Wheels .................... 66
Tire Infl tion Pressure 67
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Contents
Checking Fuels, Cool nts,
Lubric nts, etc .............................. 68
Engine Oil Level Check 68
Checking Cool nt Level 69
Replenishing Cool nt ............ 69
Fluid Level —
Autom tic Tr nsmission 70
Electric l System ......................... 71
Fuses ....................................... 71
B ttery .................................... 71
Repl cing Bulbs....................... 72
Windshield Wipers ...................... 76
Emergency Oper tion of
Sliding R oof................................. 76
Unlocking the Fuel Filler Fl p ... 76
Jump St rting .............................. 77
Tow-st rting nd Towing
the Vehicle ................................... 77
Technical Data, Fuels, Coolants,
Lu ricants, etc.
Identific tion Pl tes ..................... 80
Vehicle D t C rds ..................... 81
W rr nty Cover ge ..................... 81
Technic l D t ............................. 82
Fuels, Cool nts, Lubric nts, etc. 84
C p cities ................................. 84
Engine Oils ............................... 86
Br ke Fluid ............................... 86
Diesel Fuels ............................. 87
Cool nts ................................... 88
Service Liter ture ........................ 89
Consumer Inform tion .............. 90
Vehicle Operation
Driving
Vehicle Care
Practical Hints
Technical Data, Fuels,
Coolants, Lu ricants, etc.
7

Vehicle Oper tion

Instruments nd Controls
p x For more detailed descriptions see quoted pages.
A 1 Spe ker grilles
V 2 Side ventil tion outlets (p ge 26)
3 Swivelling outlets for nonhe ted fresh ir (p ge 26)
4 P rking br ke rele se h ndle (p ge 44)
5 H ndle to diseng ge hood lock (p ge 42)
6 P rking br ke ped l (p ge 44)
7 Combin tion switch (p ge 24)
8 Lighting switch (p ge 23)
9 Cruise control (p ge 25)
10 Instrument cluster (p ge 12)
11 Horn control
12 Steering lock (p ge 22)
Steering lock with preglow/st rter switch
13 Lever for nonhe ted fresh ir (p ge 26)
10
14 Switch for re r p ssenger comp rtment l mp
(p ge 33)
15 Switch for electric sliding roof (p ge 32)
16 Switch for h z rd w rning fl sher system
17 Switch for utom tic ntenn (p ge 40)
18 Switch for he ted re r window (p ge 33)
19 Autom tic clim te control (p ge 26)
20 R dio (p ge 35)
21 Ash tr y with lighter (p ge 34,62)
22 Switch for left front se t he ter (p ge 19)
23 Loudspe ker — f der control
24 Switch for right front se t he ter (p ge 19)
25 Switch group for window lifters (p ge 34)
26 Adjusting lever for exterior mirror on front
p ssenger side (p ge 31)
27 Glove comp rtment, illumin ted (only in steering
lock positions “ 1” or “2” )

Instruments and Controls
4
11

Instrument Cluster
1 Cool nt temper ture g uge (° C)
Up to red m rking: M ximum permissible
temper ture for n ntifreeze-blended fill protecting
down to -30°C / — 22° F. See p ge 50.
2 Fuel g uge with reserve w rning l mp (yellow)
Comes on when the steering lock key is moved to
driving position “2” nd must go out when the
engine is idling.
Fuel reserve nd c p city, refer to p ge 85 nd l st
p ge.
3 Oil pressure g uge (b r). See p ge 50.
4 Turn sign l indic tor l mp, left (green)
5 M in odometer
6 Trip odometer
7 Turn sign l indic tor l mp, right (green)
8 T chometer
9 Electric clock
10 Knob for clock djustment
(press in for djustments)
11 Se t belt w rning l mp (red)
12 Preglow indic tor l mp (yellow)
13 Br ke w rning l mp (red) comes on if
• the p rking br ke is eng ged
• not enough br ke fluid is in the reservoir
14 Br ke p d we r indic tor l mp (yellow):
Lights up during br king if the front wheel br ke p ds
re worn down. See p ge 50.
15 Ch rge indic tor l mp (red):
Comes on when the steering lock key is moved to
driving position “2” nd must go out when the
engine is idling. See p ge 50.
16 High be m indic tor l mp (blue)
17 Knob for instrument l mps nd trip odometer
Rot te knob: instrument l mps intensity re
infinitely v ri ble
Depress knob: trip odometer is turned b ck

Instrument Cluster

Keys Doors
>
Master Key — squ re he d — fits ll
locks on the c r.
Supplementary Key — rounded he d
— fits only the door locks nd the
steering lock. This key is intended to
be used whenever the c r is left with
n ttend nt. Be sure to lock glove
comp rtment nd trunk with the
m ster key.
Flat Key
TThe fl t key fits ll vehicle
locks. We recommend th t
you c rry the fl t key with
you nd keep it in s fe
pl ce so th t it is lw ys
h ndy, if needed (e.g. in
your w llet). Never le ve the fl t key in
the vehicle.
O taining Replacement Keys
You re given 4 keys with your
vehicle. Repl cement keys c n be
obt ined only vi MERCEDES-BENZ
service st tions. For security re 
sons, obt ining repl cement keys
requires consider ble time.
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Keys Doors
Opening the Doors
From outside: pull h ndle outw rds (1)
From inside: pull h ndle in door trim
p nel (4).
(
Locking and Unlocking of Doors
From the outside: turn key.
From the inside: ctu te button.
2 Unlocking
3 Locking
When the re r door buttons re
pushed down, the re r doors c nnot
be opened from the outside or the
inside. They c n be opened fter
pulling buttons up.
One c nnot lock:
• the driver's door if it is open.
• ny door if the door lock h s not
eng ged fully. In this c se open
the door nd close it g in.
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Keys Doors Se ts
Central Lock System
The centr l lock system locks or
unlocks the driver’s door, the other
vehicle doors, the fuel t nk filler fl p
nd the trunk lid simult neously. The
lock buttons of the other vehicle
doors must then move together with
the lock button of the driver’s door. If
this does not h ppen, the lock of the
respective door is not properly
eng ged. Open the door g in nd
shut it correctly.
The front p ssenger door nd the re r
doors c n lso be locked or unlocked
individu lly from inside. The front
p ssenger door c n lso be locked
nd unlocked with the key.
With the centr l lock system in the
locked position, the trunk lid c n lso
be unlocked individu lly: To do so,
turn the m ster key to the left s f r
s it will go, then depress the trunk lid
lock push button with the key nd
open the trunk. Turn the key to its
initi l position nd withdr w it. To lock
the trunk lid, close it firmly; the trunk
lid will then be locked by the centr l
lock system g in.
The trunk lid c n lso be locked
independently (for inst nce, to le ve
the vehicle in workshop) without
ctu ting the centr l lock system.
Turn the m ster key to the right s f r
s it will go nd withdr w it. In this
c se the trunk lid c n only be
unlocked with the m ster key which
must be inserted nd turned b ck to
the left.
Note:
If the fuel t nk filler fl p c nnot be
opened, refer to “ Unlocking the Fuel
Filler Fl p” (p ge 76).
Electrical Adjustment of Driver’s and
Front Passenger’s Seats
Turn key in steering lock to position
“2” .
Se t nd se t b ck c n be djusted
individu lly by me ns of the switches.
These re ccommod ted in the front
doors.
When the key is withdr wn or turned
to steering lock positions “ 1” or “0”,
se t nd se t b ck c n be djusted
only if the driver’s door is open, to
llow for e sier entry to nd exit from
the vehicle.

Seats
Note:
Prior to oper ting the vehicle, the
driver should djust the se t height
for proper vision s well s fore- ft
pl cement nd se t b ck ngle to
insure dequ te control, re ch, oper
tion, nd comfort. The he drest
should lso be djusted for proper
height so th t when the cushion is
tipped completely forw rd, it should
form cr dle behind the se t
occup nt’s he d.
Both the inside nd outside re r view
mirrors should then be djusted for
dequ te re rw rd vision. F sten se t
belts. Children under the ge of six or
under the weight of 23 kg/50 lb
should be se ted in the b ck se t
with n pproved restr int system
properly secured.
All se t, he drest, nd re rview
mirror djustments s well s f sten
ing of se t belts should only be
ccomplished before the vehicle is
put into motion.
Safety Headrests
Adjust he drest to support the b ck
of the he d pproxim tely t e r level.
S fety he drests, front
Height djustment:
Press he drest slightly forw rd (1)
nd slide upw rd or downw rd s
required.
Removing he drests:
Pull he drest up to the stop. Depress
rele se button (2) to be felt under the
se t b ck covering m teri l nd pull
he drest up quickly, holding it by the
LH he drest post (viewed in driving
direction). Then pull out he drest
completely with both h nds.
S fety he drests, re r
Height djustment:
R ise or lower he drest s required.
Removing he drests:
Pull up he drest until resist nce c n
be felt. Then pull it out quickly using
both h nds.
17

Se ts
Orthopaedic Seat Back
Turn h ndwheel (1) to djust the
spin l support height. The spin l
support must not be infl ted while the
height is being djusted. A red m rk
in window (2) indic tes the height it is
djusted to.
To infl te the spin l support squeeze
the h nd pump (3) nd rele se, s
required. For defl tion, push
button (4).
Arm Rest (Front Se ts)
The rm rest eng ges in 3 positions.
Position 1 = rm rest folded up.
Position 2 = for norm lly inclined
se t b ck.
Position 3 = for extremely inclined
se t b ck.
For downw rd djustment of the rm
rest, depress rele se button (4).
Note:
The rm rest does not suffice s
child restr int system. In c se of
front l collision child c n be
c t pulted forw rd over the locked
rm rest.
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