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1993 MERCEDES-BENZ 300E CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT MERCEDES-BENZ REPAIR SHOPS DON'T WANT YOU TO KNOW
Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!Select Section
- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service

A/C & HEATER SERVICE PROCEDURES FOR 1993 MERCEDES-BENZ 300E AUTOMOBILES
Mercedes-Benz -> Component Replacement & Adjustment -> FUNCTION SELECT CONTROL UNIT, REPLACE
Vehicle: 1993 MERCEDES-BENZ 300E 3.2 L6 GAS
- Disconnect battery ground cable.
- Remove two attaching screws, then the control unit trim panel.
- Remove three functio...
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BRAKE SERVICE PROCEDURES FOR 1993 MERCEDES-BENZ 300E AUTOMOBILES
Hydraulic Brake Systems -> Component Service -> Assemble -> Disassemble -> Master Cylinder Service
Vehicle: 1993 MERCEDES-BENZ 300E 3.2 L6 GAS
Master Cylinder Service
On 400SE, 400SEL and 600SEL, then tandem master cylinder with a built in switch over valve must be replace as an assembly with brake booster.
On models except 400SE, 400SEL and 600SEL, refer to Figs. through for master cylinder service.
Disassemble
- Position cylinder in suitable soft jawed vise.
- Remove expansion tank, then remove cap and strainer.
- Using suitable mandrel, push piston inward.
- Using suitable pliers, remove cylinder pin from housing.
- Remove piston locking ring.
- Remove piston with secondary sealing pack from housing.
- Gently tap cylinder housing to r...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1993 MERCEDES-BENZ 300E AUTOMOBILES
Mercedes-Benz -> Fuel Filter Replacement -> Except 2003-06 E320 & E500 Sedans Less 4 Matic & 2004-06 E Series w/Gasoline Engines -> Fuel System Pressure Relief -> Removal & Installation
Vehicle: 1993 MERCEDES-BENZ 300E 2.8 2.8 L6 GAS
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 t...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1993 MERCEDES-BENZ 300E AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 1993 MERCEDES-BENZ 300E 3.2 L6 GAS
- 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 1993 MERCEDES-BENZ 300E AUTOMOBILES
Starter, Replace
Vehicle: 1993 MERCEDES-BENZ 300E 4matic 3.0 L6 GAS
- Disconnect battery ground cable.
- Remove air cleaner assembly.
- Remove starter electrical harness bracket to transmission attaching bolts, then remove.
- Remove engine compartment enclosure attaching screws, then remove.
- Dis...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 1993 MERCEDES-BENZ 300E AUTOMOBILES
Cabin Air Filter Service -> Mercedes-Benz -> 1992-93 300CE, 300D, 300E, 300SD, 300TE, 400E, 500E, 1994 E320, E420 & E500
Vehicle: 1993 MERCEDES-BENZ 300E 4matic 3.0 L6 GAS
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 1993 MERCEDES-BENZ 300E AUTOMOBILES
Mercedes-Benz -> Seat Belt & Backrest Lock Warning Lamp ->
Vehicle: 1993 MERCEDES-BENZ 300E 4matic 3.0 L6 GAS
The Seat Belt and Backrest Lock 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 blink for brief time to remind driver and passenger to fasten seat belts. If the warning...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1993 MERCEDES-BENZ 300E AUTOMOBILES
Radiator, Replace
Vehicle: 1993 MERCEDES-BENZ 300E 4matic 3.0 L6 GAS
- Open hood to vertical position.
- Open expansion tank cap to release pressure
- Do not open pressure cap until coolant temperature is below 90°C (194°F).
- Remove bottom engine compartment panel.
- Drain coolant at radiator by fitting a hose (inner diameter 12 mm) onto the connection and unbolting drain plug.
- Drain coolant into a suitable container.
- Detach coolant hoses from the radiator and from the coolant pump.
- On models equipped with automatic transmissions, proceed as follows:
- Unbolt automatic transmission...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1993 MERCEDES-BENZ 300E AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1993 MERCEDES-BENZ 300E 4matic 3.0 L6 GAS
- Remove fan and fan shroud.
- Rotate tensioner counterclockwise using suitable tool to remove drive belt.
- Remove drive belt.
- Clean and i...
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COMPONENT LOCATION DIAGRAMS FOR 1993 MERCEDES-BENZ 300E AUTOMOBILES
Component location diagrams for most 1993 MERCEDES-BENZ 300E cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 1993 MERCEDES-BENZ 300E AUTOMOBILES
OEM drawn wiring diagrams for most 1993 MERCEDES-BENZ 300E cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1993 MERCEDES-BENZ 300E AUTOMOBILES
OEM TSB listings for most 1993 MERCEDES-BENZ 300E cars and light trucks sold in the U.S. from 1985+.
Document: Introduction of Improved Single-Component Windshield/Window Bonding System Vehicle: 1993 MERCEDES-BENZ 300E 3.2 L6 GAS Auto Systems: |
Document: Instrument Cluster Oil Level Messages Vehicle: 1993 MERCEDES-BENZ 300E 3.2 L6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1993 MERCEDES-BENZ 300E AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1993 MERCEDES-BENZ 300E 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 1993 MERCEDES-BENZ 300E 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 1993 MERCEDES-BENZ 300E 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 1993 MERCEDES-BENZ 300E 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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