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MERCEDES-BENZ 300D CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT MERCEDES-BENZ REPAIR SHOPS DON'T WANT YOU TO KNOW
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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about MERCEDES-BENZ 300D car and truck repair procedures including MERCEDES-BENZ engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up & drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix your MERCEDES-BENZ 300D automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR MERCEDES-BENZ 300D AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported MERCEDES-BENZ 300D cars and light trucks from 1990+
Mercedes-Benz -> Component Replacement & Adjustment -> VACUUM ELEMENTS, REPLACE -> CENTER NOZZLE FLAP -> DEFROSTER NOZZLE FLAPS -> DIVERTER AIR FLAP -> FOOTWELL FLAPS -> FRESH/RECIRCULATED AIR FLAPS
Vehicle: 1992 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL
DEFROSTER NOZZLE FLAPS
- Remove glove box.
- Disconnect both vacuum lines.
- Remove clip, then disconnect actuating rod.
- Depress and turn vacuum element to the left at same time, removing element.
- Reverse procedure to install.
FOOTWELL FLAPS
- Remove function select control unit as previously described.
- Remove vacuum line.
- Disconnect actuation rod from lever.
- Remove vacuum element from holder.
- Reverse procedure to install.
CENTER NOZZLE FLAP
- Remove heater core as described under "Heater C... "
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BRAKE SERVICE PROCEDURES FOR MERCEDES-BENZ 300D AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported MERCEDES-BENZ 300D cars and light trucks from 1990+.
MERCEDES-BENZ -> REAR DISC BRAKE SERVICE -> 190D & E, 260E & 300CE, E & TE -> Assembly -> BRAKE CALIPER, REPLACE -> BRAKE PADS, REPLACE -> CALIPER OVERHAUL -> Disassembly -> EXCEPT 190D & E, 260E & 300CE, E & TE -> Inspection -> TEVES, BENDIX & GIRLING TYPE CALIPERS
Vehicle: 1990 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL
BRAKE CALIPER, REPLACE
EXCEPT 190D & E, 260E & 300CE, E & TE
- Open caliper bleeder screw, and pump brake fluid from rear brake circuit.
- On 1st version (early production) vehicles or vehicles with starting torque compensation, disconnect and cap brake line from caliper assembly, Fig. .
- On 2nd version (later production) vehicles, loosen frame floor bracket brake hose from brake line. Disconnect brake line from caliper. Cap all open connections.
- On all models, loosen locking plate, if so equipped.
- Remove caliper attaching bolts.
- Reverse procedure to install, noting the following:
- Wh...
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FUEL FILTER REPLACEMENT PROCEDURES FOR MERCEDES-BENZ 300D AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported MERCEDES-BENZ 300D cars and light trucks sold in the U.S. for 1980+.
Mercedes-Benz -> Fuel Filter Replacement -> Diesel Engines -> Fuel System Pressure Relief -> Removal & Installation
Vehicle: 1991 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL
Fuel System Pressure Relief
Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.
Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental fuel spray.
After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while it relearns its adaptive strategy.
- Ensure the ignition switch is in the Off position.
- Remove the fuel pump protect...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR MERCEDES-BENZ 300D AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported MERCEDES-BENZ 300D cars and light trucks from 1990+.
DRIVESHAFT, Replace
Vehicle: 1993 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL
- Raise vehicle and support.
- Unscrew exhaust shielding plate.
- On models with 4MATIC, unscrew exhaust shielding plate.
- Lift transmission and support.
- Unscrew cross bridge.
- Unscrew hex, head screws and hex nut and remove rear engine carrier with engine mount.
- On all models, loosen propeller shaft clamping nut for approx. two turns without sliding back rubber sleeve (sliding along).
- Remove front propeller shaft from transmission. Flexible coupling remains on propeller shaft.
- Remove front propeller shaft from transfer case.
- Prior to sliding back propeller shaft, loosen vulcanized fitted ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR MERCEDES-BENZ 300D AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported MERCEDES-BENZ 300D cars and light trucks from 1990+.
Starter, Replace
Vehicle: 1992 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL
- Disconnect battery ground cable.
- Remove air cleaner housing.
- Remove rear engine compartment closure attaching bolts, then remove.
- Loosen starter to transmission attachi...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR MERCEDES-BENZ 300D AUTOMOBILES
Cabin air filter locations and replacement procedures with corresponding images for most domestic and imported MERCEDES-BENZ 300D cars and light trucks sold in the U.S. as equipped to the current model year.
Cabin Air Filter Service -> Mercedes-Benz -> 1992-93 300CE, 300D, 300E, 300SD, 300TE, 400E, 500E, 1994 E320, E420 & E500
Vehicle: 1992 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL
Under normal operating conditions the cabin air filter should be replaced every 15,000 miles. In dusty areas change the cabin air filter more often.
- Pull the cowl seal off up to the righthand windshield wiper.
- Remove the cowl lip seals.
- Detach the two upper center cover retaining clips, then the cover.
- Remove two screws securing the lefthand water drain cover, then disengage clip and remove cover, Fig. .
- Remove the lefthand air inlet retaining screws, then lift the air inlet upward to remove, Fig. .
- Remove the righthand air i...
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MAINTENANCE LAMP RESET PROCEDURES FOR MERCEDES-BENZ 300D AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported MERCEDES-BENZ 300D cars and light trucks sold in the U.S. from 1990+.
Mercedes-Benz -> Low Coolant Lamp ->
Vehicle: 1990 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL
The Low Engine Coolant Level warning lamp will illuminate when the ignition switch is placed in the On position to indicate the warning lamp is operational. After the engine has been started, the warning lamp should go off. If the warning lamp remains on af...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR MERCEDES-BENZ 300D AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported MERCEDES-BENZ 300D cars and light trucks from 1990+
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1990 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL
Lower
- Drain coolant into a suitable container.
- Reposition clamp at radiator and remove hose.
- Reposition clamp at water pump and remove hose.
- Remove hose from vehicle.
- Reverse procedure to i...
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SERPENTINE BELT SERVICE PROCEDURES FOR MERCEDES-BENZ 300D AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported MERCEDES-BENZ 300D cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 1991 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL
- Remove fan and fan shroud.
- Loosen tension mounting bolt 1/4 to 1/2 turn.
- Loosen tensioning device at nut by turning nut to the left until the serpentine drive belt can be removed.
- Remove drive belt.
- Clean and inspect belt surfaces of ...
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COMPONENT LOCATION DIAGRAMS FOR MERCEDES-BENZ 300D AUTOMOBILES
Component location diagrams for most MERCEDES-BENZ 300D cars and light trucks sold in the U.S. from 1990+.
LH Front Door Diagram for 1991 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL Components on diagram: |
Engine Compartment Component Locations Diagram for 1993 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL Components on diagram: |
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WIRING DIAGRAMS FOR MERCEDES-BENZ 300D AUTOMOBILES
OEM drawn wiring diagrams for most MERCEDES-BENZ 300D cars and light trucks sold in the U.S.
1993 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL Wiring Diagram Components on diagram: |
1992 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR MERCEDES-BENZ 300D AUTOMOBILES
OEM TSB listings for most MERCEDES-BENZ 300D cars and light trucks sold in the U.S. from 1985+.
Document: ORIGINAL, APPROVED PROTECTICE COVERS FOR FENDERS, SEATS, AND FRONT AND REAR FASCIA - REVISED Vehicle: 1992 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL Auto Systems: |
Document: ENGINE OIL LEVELS - CAUTIONS Vehicle: 1990 MERCEDES-BENZ 300D 2.5 2.5 L5 DIESEL Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR MERCEDES-BENZ 300D AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most MERCEDES-BENZ 300D cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most MERCEDES-BENZ 300D cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most MERCEDES-BENZ 300D cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most MERCEDES-BENZ 300D cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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