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1990 MERCEDES-BENZ 300TE CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT MERCEDES-BENZ REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
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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 1990 MERCEDES-BENZ 300TE 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 300TE automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1990 MERCEDES-BENZ 300TE AUTOMOBILES
A/C & Cooling System Maintenance -> Mercedes-Benz -> 1990-2004
Vehicle: 1990 MERCEDES-BENZ 300TE 4matic 3.0 L6 GAS
NOTE: Some Models Are Eq...
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BRAKE SERVICE PROCEDURES FOR 1990 MERCEDES-BENZ 300TE AUTOMOBILES
MERCEDES-BENZ, HYDRAULIC BRAKE SYSTEMS -> HYDRAULIC BRAKE SYSTEMS -> BLEEDING BRAKES
Vehicle: 1990 MERCEDES-BENZ 300TE 3.0 L6 GAS
On Vehicles Equipped With Anti-Lock Brakes Refer To "Anti-Lock Brake Systems."
Whenever new brake components are installed in the hydraulic system, it is recommended that the entire system be bleed. It may sometime become necessary to flush out the system due to the presence of mineral oil, kerosene, gasoline, etc., which will cause swelling of rubber pistons so that they become inoperative.
Pressure bleeding is recommended for all hydraulic brake systems, follow pressure bleeder manufacturers instructions. To remove air bubbles from master cylinder, with brake pedal bleeder scr...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 MERCEDES-BENZ 300TE 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: 1990 MERCEDES-BENZ 300TE 4matic 3.0 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 1990 MERCEDES-BENZ 300TE AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1990 MERCEDES-BENZ 300TE 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 1990 MERCEDES-BENZ 300TE AUTOMOBILES
Alternator, Replace
Vehicle: 1990 MERCEDES-BENZ 300TE 3.0 L6 GAS
- Disconnect battery ground cable at battery.
- Remove drive belt.
- Remove engine compartment panel.
- Remove front noise insulation.
- Remove air...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 MERCEDES-BENZ 300TE AUTOMOBILES
Mercedes-Benz -> Anti-Lock Brake System Warning Lamp ->
Vehicle: 1990 MERCEDES-BENZ 300TE 3.0 L6 GAS
The Anti-Lock Brake (ABS) System warning lamp, will illuminate when the ignition switch is placed in the On position to indicate the warning lamp is operational. The lamp should go off when the engine is started. If the warning lamp remains on after the engine has been started or while driving the vehicle, a fault in the ABS has been detected. While the fault is present in the ABS, the ABS is switched off. When the ABS is ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 MERCEDES-BENZ 300TE AUTOMOBILES
Radiator, Replace
Vehicle: 1990 MERCEDES-BENZ 300TE 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 strut and crossmember.
- Remove radiator cover screws.
- ...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 MERCEDES-BENZ 300TE AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1990 MERCEDES-BENZ 300TE 4matic 3.0 L6 GAS
- Remove fan and fan shroud.
- Loosen bolt on tensioner pulley 1/4 to 1/2 turn.
- Rotate tensioner counterclockwise using suitable tool to remove drive belt.
- Remov...
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COMPONENT LOCATION DIAGRAMS FOR 1990 MERCEDES-BENZ 300TE AUTOMOBILES
Component location diagrams for most 1990 MERCEDES-BENZ 300TE cars and light trucks sold in the U.S. from 1990+.
 Below LH Front Seat Diagram for 1990 MERCEDES-BENZ 300TE 4matic 3.0 L6 GASComponents on diagram: |
 Below LH Front Seat Diagram for 1990 MERCEDES-BENZ 300TE 3.0 L6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1990 MERCEDES-BENZ 300TE AUTOMOBILES
OEM drawn wiring diagrams for most 1990 MERCEDES-BENZ 300TE cars and light trucks sold in the U.S.
 1990 MERCEDES-BENZ 300TE 3.0 L6 GAS Wiring DiagramComponents on diagram: |
 1990 MERCEDES-BENZ 300TE 4matic 3.0 L6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 MERCEDES-BENZ 300TE AUTOMOBILES
OEM TSB listings for most 1990 MERCEDES-BENZ 300TE 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: 1990 MERCEDES-BENZ 300TE 3.0 L6 GAS Auto Systems: |
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Document: Instrument Cluster Oil Level Messages Vehicle: 1990 MERCEDES-BENZ 300TE 3.0 L6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 MERCEDES-BENZ 300TE AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 MERCEDES-BENZ 300TE 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 1990 MERCEDES-BENZ 300TE 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 1990 MERCEDES-BENZ 300TE 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 1990 MERCEDES-BENZ 300TE 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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