Mercedes-Benz 300 SD 1978 Owner's Manual
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Mercedes-Benz 300 SD 1978 Owner's Manual

Mercedes-Benz 300 SD 1978 Owner's Manual

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  • Page 4 You have chosen to drive a MERCEDES-BENZ, a car in whose construction and production we have taken great pains because we believe that quality is not a m atter of chance. Perhaps you have already had experience with a MERCEDES, maybe this is your first car from the DAIMLER-BENZ com pany.
  • Page 5 Contents This O w ner’s M anual also describes Vehicle Operation Heated Rear W in d o w ....o ptional extras as far as this is S liding R o o f ....... Instrum ents and C o n tr o ls re q u ire d fo r their operation.

  • Page 6: Table Of Contents

    Vehicle Care Engine Oil Lvel Check ..C hecking C oolant Level ..MERCEDES-BENZ M aintenance Replenishing C o o la n t....S y s te m ..........Fluid Level — Vehicle Operation Severe O perating C onditions .
  • Page 8 Vehicle Operation...
  • Page 9 Instruments and Controls For m ore detailed d e scriptions see q u o te d pages. 1 S peaker grilles 15 Switch fo r rear passenger c o m p a rtm e nt light 2 A djustable louvers fo r side ventilation (page 21) 16 Switch fo r autom atic antenna (page 30) 3 C ontrol lever fo r side ventilation (page 21) 17 Switch fo r heated rear w indow (page 27)
  • Page 10 Instruments and Controls...
  • Page 11 Instrument Cluster 1 C oolant tem perature gauge (° F) 11 Seat belt w arning light (red) Red m arking: M axim um p e rm is s ib le te m p e ra tu re fo r an antifreeze-blended fill protecting down to -22° F 12 Brake pad wear in d ica tor light (red): Light com es on while braking and driving if the front (-30°...
  • Page 12 Instrument Cluster < FASTEN BELTS 9 0 3 9...
  • Page 13 Keys Doors ► Master Key — square head — fits all Opening the Doors When the rear d oor p lu n g e r’s are locks on the car. pushed down the rear doors cannot From outside: pull handle o u t­ be opened from the outside or the w ards (1).
  • Page 14 Keys Doors The tru n k lid can also be unlocked Master Lock System To reverse this, turn trunk lock separately by tu rning m aster key counterclockw ise back to horizontal clockw ise to the stop. Push the trunk position of the tu m b le r slot with The m aster lock system sim u lta n e ­...
  • Page 15 Seats w ardm ost positions and headrest rem oved. For driving, return backrest to u p right position and push seat back. Replace headrest. Note: P rior to operating the vehicle, the d rive r should adjust the seat height fo r p rop er vision as well as fore -aft placem ent and seat back angle to insure adequate control, reach,...
  • Page 16 Seats Arm Rest (Rear Seat) Safety Belts Fastening of fro n t and rear outer seat belts (with inertia reel): A center arm rest is provided in the W arning system: rear seat which can be pulled out with • Pull belt with tongue (1) across The in d ica tor m arked “...
  • Page 17 Seats Operation of belts with inertia reel: Note: The safety belt inertia reel stops the No safety belt can be used for m ore belt from unw inding fu rth e r in case of than one person. Belts are not >...
  • Page 18 Controls P reglowing takes place. Starting: continue turnin g key clockw ise to the stop. The starter is engaged when the key is pressed against the stop. The < starter nonrepeat unit requires the key to be returned to position "0 ”...
  • Page 19 Controls 3 S tanding lights, right Note: Light Switch 4 S tanding lights, left With the steering lock key rem oved 0 O ff-position and the d riv e r’s do o r open a signal A Turn to position 2 and pull out to 1 Parking lights (includes side sounds if the veh icle’s exterior lighting firs t d etent = same as position 2...
  • Page 20 Controls C ontrol fo r w indshield washer system When the w asher system is sw itched on, the w ipers also operate W indshield w iper control 0 W indshield w iper switched off 1 In te rm itten t w iping N orm al w iper speed III High w ipe r speed Hints:...
  • Page 21 Controls 4 = Resume with the accelerator. Speed is set If the lever is briefly pushed to by briefly pushing the switch to position “ 4 ” when driving at a position “ 1” or “ 2” , and the speed exceeding 25 mph (40 km /h ) accelerator can be released.
  • Page 22 Automatic Clim ate Control 6 “ DEF” button 10 Lever for side ventilation 1 T em perature selector wheel open = tow ards center 2 “ OFF” button 7 R efrigerant com pre ssor switch of vehicle 8 A dju sta ble louvers fo r cooled air 3 “...
  • Page 23 Automatic Climate Control The autom atic clim ate control is entire year. If required to be ensure defogging under norm al designed to m aintain the desired altered, only slight adjustm ents w eather conditions. F o rth e defog ­ te m perature in the vehicle interior.
  • Page 24 Automatic Clim ate Control 5 “ BI-LEVEL” button: 6 “ DEF” button: Important! For fog ge d-u p windows. For iced-up w indow s. In order to keep the air conditioning During heating and cooling Independent of the position of the section of the clim ate control system operations air is channelled to the te m p e ratu re selector wheel air...
  • Page 25 Automatic Clim ate Control ► rear w indow if the w indow s are Fresh air enters the vehicle through an closed. Do not cover up the ventilation opening in fro n t of the w indshield ports with clothes. (keep free of snow) and is em itted through ventilation ports below the...
  • Page 26 Various Equipment Interior Lights The reading lights in the rear dition m irro r can be dim m ed by passenger c o m p a rtm e n t are switched means of lever on low er m irro r edge. Three sw itching positions are on and o ff by means of a switch in Lever in opposite d riving d irection =...
  • Page 27 Various Equipment 8336 Electric Window Lifters The e lectric w indow lifters can only safety switch is not depressed, inad­ vertent operation of the rear door be operated with the steering lock in Switch group fo r w indow lifters: position “...
  • Page 28 Various Equipment Lighter Heated Rear Window Sliding Roof Turn key in steering lock to position Turn key in steering lock to posi­ Turn key in steering lock to posi­ “ 1” or “ 2” . tion “ 2” . tion “ 2” . Push the lighter in to heat it.
  • Page 29 10 Cassette slot For control location, refer to the illustration on the type of radio 8854 installed in your MERCEDES-BENZ. M exico Cassette The radio can only be operated with (Radio with A utom atic Signal Seeker the ignition key in the num ber “ 1” or and built-in Cassette Player) ‘...
  • Page 30 Radio O n-O ff/V olum e S tation Tuning O perating the autom atic tuning bar again causes the tuner to resum e its Turn knob (1) clockw ise to switch First, select desired band by pressing search function. W hen the end of the radio on and to increase volum e.
  • Page 31 Radio The height of the antenna can antenna length to capture weak fu rth e rm o re be adjusted continuously incom ing signals. The antenna can be by actuating the antenna switch: operated by depressing the respective side of the rocker switch. •...
  • Page 32 Radio Tape Playback first.) The cassette will be au tom a ti­ Care of the Tape Player (M exico Cassette M odel) cally released when the tape reaches Use only good quality cassettes with a its end. To play the other side, re ­ This type of radio provides fo r the m axim um playing tim e of 45 m inutes move the cassette from the radio,...
  • Page 34 Driving...
  • Page 35 Parking Brake Hood 8 2 7 9 Swing the safety catches on LH and Depress parking brake pedal (1). Opening: RH sides of radiato r g rille forw ard and When the steering lock key is in To unlock the hood, pull handle lift hood.
  • Page 36 Have the following items checked regularly and prior to any long trip 1 Fuel Supply For w inter and sum m er operation diesel fuels refer to “ Fuels, Coolants, Lubricants, etc. and last page” . Do not force fuel tank flap. 2 Tire Pressure For tire pressure table refer to fuel fille r flap or last page.
  • Page 37 Starting and Turning off the Engine Si*S3SSS:SSSSJSSS:?:.:..v... ' Engage parking brake or service Turn key in steering lock to position When the engine is at operating brake before starting the engine. “ 2” . Charge in dicator and preglow ing tem pera ture (coolant tem perature Place the gear selector lever in either in d ica tor light m ust com e on.
  • Page 38 Starting and Turning off the Engine Starting Procedure at ambient Starting Procedure at ambient A fter an unsuccessful starting Temperature exceeding 50° F (1 0 °C ) Temperature lower than 32° F ( 0 ° C ) attem pt, repeat the entire starting procedure.
  • Page 39 Starting and Shifting Gears Test the service brake shortly after Starting d riving off. S hift selector lever to the desired W arm up the engine sm oothly. Do not driving position only when the engine place full load on the engine until the is idling and the service brake is operating te m p e ra ture has been applied.
  • Page 40 Starting and Shifting Gears Selector Lever Positions pushed, tow ed or tow -started). gear covers a w ider speed range Do not sh ift to neutral while than with the selector lever in The autom atic gear shifting process driving. position “...
  • Page 41 Starting and Shifting Gears Safe Driving M aneuvering “ S” or “ L” early enough to maintain Always drive according to the rule engine RPMs w ithin best torque “ Safety firs t” . The com fortable ride of To m aneuver in restricted area, e. g. range.
  • Page 42 Icy road = approx. 15 % MERCEDES-BENZ service station. When d riving in heavy rain fo r some If the parking brake is released and You should pay particu la r attention to...
  • Page 43 "2 ” or should Have brake system checked in a it fail to go out after starting or during MERCEDES-BENZ service station as operation, this indicates a fault which soon as possible. m ust be repaired at a MERCEDES- BENZ service station as soon as possible.
  • Page 44 -an d-go city tra ffic and on short engine speed. therefore, be carried out only by hops, and in hilly co untry as well qualified MERCEDES-BENZ A void accelerating by kickdow n. It is increases fuel consum ption. technicians. The adjustm ents of the...
  • Page 45 M +S ra d ia l-p ly tires and recom m ended by us. Any before the onset of winter. is 100 m iles/h (160 km /h). MERCEDES-BENZ service station will • Engine oil change: If no “ all-year Hints fo r Driving readily advise you.

  • Page 46: Vehicle Care

    Vehicle Care...

  • Page 47: M Er Cedes-B En Z Maintenance System

    A fter 12,500 miles (20,000 km) inspect e. g. in detail in a manual w hich you can thereafter after every 12,500 miles o rd e r from your MERCEDES-BENZ (20,000 km), but at least once a o the front axle brake linings service station.

  • Page 48: Engine Oil Change And Filter Change

    Engine Oil Change and Filter Change Automatic-Transmission — All MERCEDES-BENZ service Fluid and Filter Change stations store the MERCEDES-BENZ To be carried out every 4,000 miles original spare parts required for (7,000 km), but at least twice a year (in To be carried out every 37,500 m iles m aintenance and re pair w ork.

  • Page 49: Cleaning And Care Of The Vehicle

    In o rd e r to m aintain the rust your MERCEDES-BENZ service P articularly unfavorable conditions, protection, we recom m end repeating station.

  • Page 50: Jobs Related To C A Re

    Cleaning and Care of the Vehicle Tar Stains Car Wash clear, lukew arm w ater an soap. Do not d ry the w ebbing at tem peratures Q uickly rem ove tar stains before they Before washing your vehicle, rem ove above 176°...
  • Page 51 Do not sit every three months. Use the on dam p upholstery. Quick drying is ap p ro p ria te MERCEDES-BENZ achieved by applying hot air — for Touch-U p S tick fo r q uick and exam ple, by using a hair dryer.

  • Page 52: Practical Hints

    Practical Hints...

  • Page 53: Ash Trays

    Practical Hints Ash trays Rear Seat Cushion Removal: Push in left and right spring To rem ove fro n t ash tray: Pull ash tray out as fa r as possible. clam ps (1), slightly raise rear seat Push down the spring (1) in the center cushion at the fro n t side and pull and rem ove ash tray.

  • Page 54: First Aid Kit

    The ja ck is designed exclusively fo r excessive w eight is placed on the ja ckin g up the vehicle at the jack rack. Your MERCEDES-BENZ dealer tubes p rovided on either side of the can give fu rth e r advice.

  • Page 55: Wheels Tires Changing Wheels

    Slowly leaking air (e. g. due to a nail in design, version and brand. the tire) may cause dam age to the tire See any MERCEDES-BENZ service such as tread separation. Regular tire station fo r inform ation on tested and...

  • Page 56: Changing Wheels

    Wheels Tires Changing Wheels Changing Wheels 4. Using the co m bination wrench, inclines. Jack up the vehicle until loosen but do not yet rem ove the the wheel is clear off the ground. 1. Depress parking brake pedal. wheel bolts. 7.

  • Page 57: Tire Inflation Pressure

    Wheels Tires Changing Wheels Tire Inflation Pressure 10.Lower car and rem ove jack. perm issible. The ride of the vehicle, Tighten the five bolts evenly by however, w ill becom e som ew hat A table (see fuel fille r fla p or last page) going around the wheel and harder.

  • Page 58: Fuel System

    Fuel System C h e ckin g Fuels C oo la nts L u b rica n ts etc. A fter refueling, start the engine, engaging the sta rter fo r about 20 seconds until all the tra p pe d air has been evacuated.

  • Page 59: Checking Coolant Level

    Checking Fuels Coolants Lubricants etc. Checking Coolant Level Replenishing Coolant If a sm a ll am ount of coolant h a sto be The coolant level can be checked added (due to evaporation of water), visually at the “ see th ro u g h ’’ coolant reservoir located in fro n t of the plain w ater can be added.

  • Page 60: Fluid Level

    Checking Fuels Coolants Lubricants etc. Check transm ission fluid level with the The m axim um and m inim um oil level engine idling, p arking b rake e n ga g e d m arks on the d ip stick are applicable and selector lever in position “...

  • Page 61: Electrical System

    Electrical System Replacing Bulbs Front Lights High beam sealed-beam unit (type 1): To rem ove, push the bulb in and turn (Sealed Beam Version — USA Loosen clam ping screws 8, to the left, then lift the bulb out. S pecifications) rem ove retaining ring and unit, disconnect plug and socket on To install, grip the bulb with a paper...
  • Page 62 Electrical System Pull out lam p holder with lamp. 14 Bulb fo r fog light: Tail Light Assembly Loosen securing screws (15) and Depress bulb, turn left and take out. Remove both knurled n u ts in th e tru n k rem ove housing.
  • Page 63 Electrical System 8212 License Plate Light Courtesy Lights Trunk Light Loosen both the securing screws (1) To replace the bulb, press courtesy T runk light (1) is easily accessible of the light, detach lens with gasket (2) light slightly tow ard the left (1), lift off when trunk lid (2) is open.

  • Page 64: Fuses

    Electrical System Fuses m ust be replaced, not repaired T ow -start vehicle only with the battery or bridged. connected. Only charge battery with rapid charging equ ipm e nt if it has Spare fuses are stored in the fuse box been disconnected from the vehicle’s (observe am perage and co lor code).

  • Page 65: Sliding Roof Emergency Operating

    Sliding Roof Emergency Operating Unlocking of the Filler Flap If the electric drive fails, the sliding retained in bracket (2) plus spark plug If the fille r flap cannot be opened w rench (4) to m ove the sliding roof in when the m aster lock system is roof can also be moved by hand.

  • Page 66: Tow-Starting And Towing The Vehicle

    Tow-starting and Towing the Vehicle Towing eyes are situated underneath Have vehicle towed. Having attained a the key is in steering lock position “ 2” the fro n t and rear end on the RH side. speed of 18 m ph (30 k m /h ) — cold and is not im m ediately disrupted after transm ission —...

  • Page 67: Turning Off Engine Manually

    Tow-starting and Towing the Vehicle Turning off Engine Manually Starting the Engine with Towing a Vehicle Jumper Cable (35 mm 2 Minimum The vehicle may be towed with the Cable Cross Section) and driving wheels on the ground and the Auxiliary (Booster) Battery selector lever in position “...

  • Page 68: Technical Data Fuels Coolants Lubricants Etc

    Technical Data Fuels Coolants Lubricants etc. <...

  • Page 69: Identification Plates

    Identification Plates Vehicle Data Cards Data card No. 1 bears the key When ordering spare parts, please W ith your MERCEDES-BENZ you num ber and should on no account quote chassis and engine num bers. receive two vehicle data cards listing all m ajor vehicle data.

  • Page 70: Technical Data

    Technical Data Type Transmission 300 SD (116 1 2 0 )1 Design ........A uto m atic four-speed to rque -con ve rter Engine transm ission Engine ty p e ......617.950 Steering System W ork cycle ......Diesel fo u r stroke No.
  • Page 71 Technical Data See certification tag Weights 12 V Bulbs ......... High and low b e a m s ....Sealed beam insert No. 1 and 2 Main Dimensions Turn signal, clearance and 205.5 ins. (5,220 mm) Overall vehicle le n g th ..21/5 W (32/4 cp) side m arker lights, fr o n t ..

  • Page 72: Fuels, Coolants, Lubricants, Etc

    Coolants Lubricants etc. Capacities Vehicle com ponents and their Therefore use only brands tested and E nquire at your MERCEDES-BENZ respective lubricants m ust match. recom m ended by us. service station. Capacity Fuels, coolants, lubricants, etc. Total oil capacity in case of engine oil and 7.9/6.6 U S /Im p.
  • Page 73 Fuels Coolants Lubricants etc. Capacities C apacity Fuels, coolants, lubricants, etc. H ypoid gear oil SAE 90 Rear axle 2.1/1.8 U S /Im p. pts. (1.0 I) H ydraulic fluid A ccelerator control linkage A utom atic transm ission fluid (ATF) Power steering 3.0/2.5 U S /Im p.

  • Page 74: Engine Oils

    300— 600 with an initial operation oil in the miles (500— 1,000 km). Engine oils are specifically tested for factory or in a MERCEDES-BENZ their suitability in our engines. service station. This oil is specially Brake Fluid...

  • Page 75: Diesel Fuels

    Fuels C oolants L u b rica n ts etc. supplem entary fuel (kerosene) must exceed 30 %. Prem ium fuels are not Diesel Fuels not exceed 50 %. to be used. Use only co m m e rcia lly available The follow ing table can be used as a Engine pow er may drop according to vehicular diesel fuels No.

  • Page 76: Coolants

    The coolant Is a m ixture of w ater and antifreeze concentration is carried out m um am ount of scale form ing antifreeze. In production, the cooling only at each MERCEDES-BENZ m inerals (potable w ater quality). system is filled with an antifreeze- m aintenance service.

  • Page 77: Service Literature

    Service Literature Custom ers who are interested in o rd e rin g service literature fo r their vehicles are advised to contact o u r subsidiaries in the U.S. or Canada at the follow ing addresses, respectively fo r U.S.A.: M ercedes-B enz of N.A.

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