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1991 MERCEDES-BENZ 350SDL 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
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- 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 350SDL 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 350SDL automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1991 MERCEDES-BENZ 350SDL AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Imported Vehicles
Vehicle: 1991 MERCEDES-BENZ 350SDL 3.4 L6 DIESEL
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BRAKE SERVICE PROCEDURES FOR 1991 MERCEDES-BENZ 350SDL AUTOMOBILES
MERCEDES-BENZ, POWER BRAKES -> POWER BRAKE UNIT REPLACEMENT
Vehicle: 1991 MERCEDES-BENZ 350SDL 3.4 L6 DIESEL
On Models Equipped With Anti-Lock Brake Systems, Refer To "Anti-Lock Brake Systems."
- Disable airbag system as described in "Airbag System Disarming."
- On vehicles with manual transmission, disconnect hose and move toward master cylinder.
- On all mode...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 MERCEDES-BENZ 350SDL AUTOMOBILES
Mercedes-Benz -> Fuel Filter Replacement -> Diesel Engines -> Fuel System Pressure Relief -> Removal & Installation
Vehicle: 1991 MERCEDES-BENZ 350SDL 3.4 L6 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 1991 MERCEDES-BENZ 350SDL AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 1991 MERCEDES-BENZ 350SDL 3.4 L6 DIESEL
- 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 350SDL AUTOMOBILES
Starter, Replace
Vehicle: 1991 MERCEDES-BENZ 350SDL 3.4 L6 DIESEL
- 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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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 MERCEDES-BENZ 350SDL AUTOMOBILES
Mercedes-Benz -> Adaptive Dampening System (ADS) Warning Lamp ->
Vehicle: 1991 MERCEDES-BENZ 350SDL 3.4 L6 DIESEL
The Adaptive Dampening System (ADS) 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 ADS has been detected. While the fault i...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 MERCEDES-BENZ 350SDL AUTOMOBILES
Radiator, Replace
Vehicle: 1991 MERCEDES-BENZ 350SDL 3.4 L6 DIESEL
- Remove bottom engine compartment panel.
- Drain coolant into a suitable container.
- On models with automatic transmission, remove transmission oil cooler lines.
- On all models, remove coolant hoses from coolant pump.
- Remove coolant overflow hose from radiator.
- Remove fan cowl and place over fan.
- Remove expanding rivets.
- Remove lefthand and righthand radi...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 MERCEDES-BENZ 350SDL AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1991 MERCEDES-BENZ 350SDL 3.4 L6 DIESEL
- Unscrew fan shroud, remove magnetic fan.
- Remove radiator.
- Remove fan shroud.
- Loosen fan shroud, place above fan.
- Remove viscous fan coupling.
- Unscrew nut, remove screw ...
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COMPONENT LOCATION DIAGRAMS FOR 1991 MERCEDES-BENZ 350SDL AUTOMOBILES
Component location diagrams for most 1991 MERCEDES-BENZ 350SDL cars and light trucks sold in the U.S. from 1990+.
 Top Front Of Engine Diagram for 1991 MERCEDES-BENZ 350SDL 3.4 L6 DIESELComponents on diagram: |
 Behind Instrument Cluster Diagram for 1991 MERCEDES-BENZ 350SDL 3.4 L6 DIESELComponents on diagram: |
CLICK HERE TO GET FULL ACCESS TO 1991 MERCEDES-BENZ 350SDL PARTS/COMPONENTS LOCATION DIAGRAMS!
TECHNICAL SERVICE BULLETINS FOR 1991 MERCEDES-BENZ 350SDL AUTOMOBILES
OEM TSB listings for most 1991 MERCEDES-BENZ 350SDL 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 350SDL 3.4 L6 DIESEL Auto Systems: |
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Document: Instrument Cluster Oil Level Messages Vehicle: 1991 MERCEDES-BENZ 350SDL 3.4 L6 DIESEL Auto Systems: |
CLICK HERE TO GET FULL ACCESS TO 1991 MERCEDES-BENZ 350SDL TECHNICAL SERVICE BULLETINS!
COMPONENT/PARTS SPECIFICATIONS FOR 1991 MERCEDES-BENZ 350SDL AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 MERCEDES-BENZ 350SDL 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 350SDL 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 350SDL 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 350SDL 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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