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1991 MERCEDES-BENZ 300E CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT MERCEDES-BENZ REPAIR SHOPS DON'T WANT YOU TO KNOW
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- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 MERCEDES-BENZ 300E 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 300E automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1991 MERCEDES-BENZ 300E AUTOMOBILES
Mercedes-Benz -> Cooling Fans -> DESCRIPTION -> 190E -> 1992 300SE -> 260E, 300D, 300E & 300TE -> 300CE & 300SL -> 300SEL, 420SEL, 560SEC, 560SEL & 1991 300SE -> 400E & 500E -> 500SL -> 560SEL
Vehicle: 1991 MERCEDES-BENZ 300E 2.6 2.6 L6 GAS
190E
The dual electric fans are temperature controlled. The fans are switched to low speed when refrigerant pressure is 20.4 square inches (20 bar) and in high speed when engine temperature reaches 221°F. At maximum speed both fans draw about 26 amps at 13 volts.
260E, 300D, 300E & 300TE
The fan has two operating modes. Low speed, which is activated when the refrigerant pressure reaches 20.4 square inches (20 bar). High speed is activated by a temperature switch, once coolant temperature reaches 221°F a relay than the switch is activated.
300SEL, 420SEL...
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BRAKE SERVICE PROCEDURES FOR 1991 MERCEDES-BENZ 300E AUTOMOBILES
MERCEDES-BENZ, HYDRAULIC BRAKE SYSTEMS -> HYDRAULIC BRAKE SYSTEMS -> HYDRAULIC BRAKE SPECIFICATIONS
Vehicle: 1991 MERCEDES-BENZ 300E 3.0 L6 GAS
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 MERCEDES-BENZ 300E AUTOMOBILES
Mercedes-Benz -> Fuel Filter Scheduled Maintenance -> 1980-02 Models w/Gasoline Engines -> Normal Service -> Severe Service
Vehicle: 1991 MERCEDES-BENZ 300E 4matic 3.0 L6 GAS
Normal Service
Replace e...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 MERCEDES-BENZ 300E AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 1991 MERCEDES-BENZ 300E 3.0 L6 GAS
- Raise vehicle and support.
- Unscrew exhaust shielding plate.
- On models with 4MATIC, unscrew exhaust shielding plate.
- Lift transmission and support.
- Unscrew hex, head screws and hex nut and remove rear engine carrier with engine mount.
- Unscrew cross bridge.
- 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 1991 MERCEDES-BENZ 300E AUTOMOBILES
Alternator, Replace
Vehicle: 1991 MERCEDES-BENZ 300E 2.6 2.6 L6 GAS
- Disconnect battery ground cable at battery.
- Remove air intake cover.
- Remove electrical connecti...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 MERCEDES-BENZ 300E AUTOMOBILES
Mercedes-Benz -> Low Engine Oil Level Warning Lamp ->
Vehicle: 1991 MERCEDES-BENZ 300E 4matic 3.0 L6 GAS
The Low Engine Oil 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 after the engine has been started or com...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 MERCEDES-BENZ 300E AUTOMOBILES
Radiator, Replace
Vehicle: 1991 MERCEDES-BENZ 300E 3.0 L6 GAS
- Drain coolant into a suitable container.
- Remove bottom engine compartment panel.
- Remove coolant hoses from coolant pump.
- Remove coolant overflow hose from radiator.
- Remove screw holding air scoop and from air scoop from air filter.
- Remove fan cowl and place over fan.
- Remove radiator cover sc...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 MERCEDES-BENZ 300E AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1991 MERCEDES-BENZ 300E 2.6 2.6 L6 GAS
- Remove fan and shroud.
- Loosen bolt on tensioner pulley 1/4 to 1/2 turn.
- Rotate tensioner counterclockwise using suitable tool to remove drive belt.
- Remove ...
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COMPONENT LOCATION DIAGRAMS FOR 1991 MERCEDES-BENZ 300E AUTOMOBILES
Component location diagrams for most 1991 MERCEDES-BENZ 300E cars and light trucks sold in the U.S. from 1990+.
 LH Front Door Diagram for 1991 MERCEDES-BENZ 300E 3.0 L6 GASComponents on diagram: |
 LH Front Door Diagram for 1991 MERCEDES-BENZ 300E 4matic 3.0 L6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1991 MERCEDES-BENZ 300E AUTOMOBILES
OEM drawn wiring diagrams for most 1991 MERCEDES-BENZ 300E cars and light trucks sold in the U.S.
 1991 MERCEDES-BENZ 300E 3.0 L6 GAS Wiring DiagramComponents on diagram: |
 1991 MERCEDES-BENZ 300E 2.6 2.6 L6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1991 MERCEDES-BENZ 300E AUTOMOBILES
OEM TSB listings for most 1991 MERCEDES-BENZ 300E cars and light trucks sold in the U.S. from 1985+.
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Document: Introduction of Improved Single-Component Windshield/Window Bonding System Vehicle: 1991 MERCEDES-BENZ 300E 3.0 L6 GAS Auto Systems: |
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Document: Instrument Cluster Oil Level Messages Vehicle: 1991 MERCEDES-BENZ 300E 3.0 L6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 MERCEDES-BENZ 300E AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 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 1991 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 1991 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 1991 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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