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1997 MERCEDES-BENZ S320 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT MERCEDES-BENZ REPAIR SHOPS DON'T WANT YOU TO KNOW
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- 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 1997 MERCEDES-BENZ S320 AUTOMOBILES
Air Bag System Precautions -> Mercedes-Benz -> Arming
Vehicle: 1997 MERCEDES-BENZ S320 3.2 L6 GAS
- Ensure ignition is in OFF position and nobody is inside vehicle.
- Connect SRS red electrical connectors.
- If disconnected, connect battery ground cable.
- From a safe positi...
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BRAKE SERVICE PROCEDURES FOR 1997 MERCEDES-BENZ S320 AUTOMOBILES
Anti-lock Brakes -> System Service -> 1995 C36, C220, & C280 -> ABS -> ABS Control Unit -> ASR/ETS/ESP -> Brake System Bleed -> C36, C220, C230, C280, E430, S320, S350, S420, S500, S600, SL320, SL500, SL600 & 1996-97 E300 & E320 & 1996-97 E420 -> Component Replacement -> E430, S320, S350, S420, S500, S600, SL320, SL500 & SL600 & 1996-97 E300 & E320 & 1996-97 E420 -> ESP Charging Pump -> ESP Pressurizing Piston Unit -> Front Wheel -> Hydraulic Unit -> Rear Axle -> Speed Sensor
Vehicle: 1997 MERCEDES-BENZ S320 3.2 L6 GAS
Brake System Bleed
Refer to procedure as outlined under "Hydraulic Brake Systems."
Component Replacement
Hydraulic Unit
ABS
1995 C36, C220, & C280
- Turn ignition switch to Off position.
- Disconnect hydraulic lines. Plug lines and control unit connections. Do not mix lines.
- Disconnect plastic caps.
- Remove mounting bolts and control unit.
- Reverse procedure to install. Torque mounting bolts to 11 ft. lbs.
ASR/ETS/ESP
C36, C220, C230, C280, E430, S320, S350, S420, S500, S600, SL320, SL500, SL600 & 1996-97 E300 & E320 & 1996-97 E420
- Turn ignition switch to Off position.
- Disconnect hydraulic lines. Seal...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1997 MERCEDES-BENZ S320 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: 1997 MERCEDES-BENZ S320 3.2 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 1997 MERCEDES-BENZ S320 AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 1997 MERCEDES-BENZ S320 3.2 L6 GAS
- Raise and support vehicle.
- Disconnect exhaust system, then the shields, Fig. .
- Remove fuel pump cover.
- Remove seat belt bracket mounting bolts.
- Remove mounting bolts and driveshaft reinforcement bridge.
- Remove clamping nut,
- Loosen intermediate bearing mounting bolts.
- Remove mounting bolts and nuts, then disconnect front driveshaft from transmission. Flexible disc remains on driveshaft.
- Remove mounting bolts and nuts, then disconnect rear driveshaft from differential carrier. Flexible disc remains on driveshaft.
- Loosen flexible discs fitted sleeves using suitable 6-inch long, .3974-.4...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1997 MERCEDES-BENZ S320 AUTOMOBILES
Alternator, Replace
Vehicle: 1997 MERCEDES-BENZ S320 3.2 L6 GAS
- Remove drive belt.
- Remove protective cover, as required, and disconnect electrical connectors.
- Remove ...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 1997 MERCEDES-BENZ S320 AUTOMOBILES
Cabin Air Filter Service -> Mercedes-Benz -> 1994-99 S Class
Vehicle: 1997 MERCEDES-BENZ S320 3.2 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.
- Open the hood.
- Pull the up cowl seal.
- Disconnect the vacuum hoses from the main air flap actuators.
- Lift up the air plenum housing.
- Turn the windshield heating thermal valve counterclockwise to disengage.
- Lift the outside temperature sensor upward and pos...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1997 MERCEDES-BENZ S320 AUTOMOBILES
Mercedes-Benz -> Brake Assist System (BAS)/Acceleration Slip Regulation (ASR) Or Brake Assist System (BAS)/Electronic Stability Program (ESP) Warning Lamp ->
Vehicle: 1997 MERCEDES-BENZ S320 3.2 L6 GAS
The Brake Assist System (BAS)/Acceleration Slip Regulation (ASR) or Brake Assist System (BAS)/Electronic Stability Program (ESP) 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 has come on while driving the vehicle, a fault in the BAS, ASR or ESP h...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1997 MERCEDES-BENZ S320 AUTOMOBILES
Radiator, Replace
Vehicle: 1997 MERCEDES-BENZ S320 3.2 L6 GAS
- Remove fan shroud.
- Remove viscous fan clutch.
- Drain cooling system into suitable container.
- Disconnect coolant hoses.
- Remove automatic transmission oil cooler lines and plug fittings.
- Remove fan grille.
- Remove flat shaped springs.
- ...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1997 MERCEDES-BENZ S320 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1997 MERCEDES-BENZ S320 3.2 L6 GAS
- Remove viscous fan clutch.
- Swivel tensioning pulley clockw...
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COMPONENT LOCATION DIAGRAMS FOR 1997 MERCEDES-BENZ S320 AUTOMOBILES
Component location diagrams for most 1997 MERCEDES-BENZ S320 cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 1997 MERCEDES-BENZ S320 AUTOMOBILES
OEM drawn wiring diagrams for most 1997 MERCEDES-BENZ S320 cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1997 MERCEDES-BENZ S320 AUTOMOBILES
OEM TSB listings for most 1997 MERCEDES-BENZ S320 cars and light trucks sold in the U.S. from 1985+.
Document: Introduction of Improved Single-Component Windshield/Window Bonding System Vehicle: 1997 MERCEDES-BENZ S320 3.2 L6 GAS Auto Systems: |
Document: Headlamp Color and/or Brightness Difference When Changing Xenon Bulb Vehicle: 1997 MERCEDES-BENZ S320 3.2 L6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1997 MERCEDES-BENZ S320 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1997 MERCEDES-BENZ S320 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 1997 MERCEDES-BENZ S320 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 1997 MERCEDES-BENZ S320 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 1997 MERCEDES-BENZ S320 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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