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1999 MERCEDES-BENZ S420 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 1999 MERCEDES-BENZ S420 AUTOMOBILES
Mercedes-Benz -> Model Identification Chart
Vehicle: 1999 MERCEDES-BENZ S420 4.2 V8 GAS
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BRAKE SERVICE PROCEDURES FOR 1999 MERCEDES-BENZ S420 AUTOMOBILES
Hydraulic Brake Systems -> Tightening Specifications
Vehicle: 1999 MERCEDES-BENZ S420 4.2 V8 GAS
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1999 MERCEDES-BENZ S420 AUTOMOBILES
Mercedes-Benz -> Component Locations -> S320, SL320, S420, S430, S500, S600, SL500, SL600 & 1993-92 300SE, 300SL, 400SE, 400SEL, 500SEC, 500SEL, 500SL, 600SEC, 600SEL & 600SL
Vehicle: 1999 MERCEDES-BENZ S420 4.2 V8 GAS
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1999 MERCEDES-BENZ S420 AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 1999 MERCEDES-BENZ S420 4.2 V8 GAS
- Raise and support vehicle.
- Disconnect exhaust system and 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 six-inch long, .3974-.4725 ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1999 MERCEDES-BENZ S420 AUTOMOBILES
Alternator, Replace
Vehicle: 1999 MERCEDES-BENZ S420 4.2 V8 GAS
- Remove drive belt.
- Remove engine compartment panels.
- Remove crossmember below radiator.
- Remove fan cowl.
- Disconnect elec...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 1999 MERCEDES-BENZ S420 AUTOMOBILES
Cabin Air Filter Service -> Mercedes-Benz -> 1994-99 S Class
Vehicle: 1999 MERCEDES-BENZ S420 4.2 V8 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 1999 MERCEDES-BENZ S420 AUTOMOBILES
Mercedes-Benz -> Brake Assist System (BAS)/Acceleration Slip Regulation (ASR) Or Brake Assist System (BAS)/Electronic Stability Program (ESP) Warning Lamp ->
Vehicle: 1999 MERCEDES-BENZ S420 4.2 V8 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 1999 MERCEDES-BENZ S420 AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1999 MERCEDES-BENZ S420 4.2 V8 GAS
Lower
- Drain coolant into a suitable container.
- Reposition clamp at radiator and remove hose.
- Reposition clamp at water pump and remove hose.
- Remove hose from vehicle.
- Reverse procedure to i...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1999 MERCEDES-BENZ S420 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1999 MERCEDES-BENZ S420 4.2 V8 GAS
- Remove fan shroud ring and place over fan.
- On first versions, proceed as follows:
- Loosen adjusting bolt 1/4-1/2 turn.
- Loosen tensioning nut (turn to left).
- Remove drive belt.
- Inspect pulley surfaces and replace as required.
- Set pointer at marking 1.
- Install belt starting at tensioning pulley.
- Tighten tensioning nut until setting point...
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COMPONENT LOCATION DIAGRAMS FOR 1999 MERCEDES-BENZ S420 AUTOMOBILES
Component location diagrams for most 1999 MERCEDES-BENZ S420 cars and light trucks sold in the U.S. from 1990+.
Control Module Locations Diagram for 1999 MERCEDES-BENZ S420 4.2 V8 GAS Components on diagram: |
Fuse & Relay Panel, Engine Compartment Diagram for 1999 MERCEDES-BENZ S420 4.2 V8 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1999 MERCEDES-BENZ S420 AUTOMOBILES
OEM drawn wiring diagrams for most 1999 MERCEDES-BENZ S420 cars and light trucks sold in the U.S.
1999 MERCEDES-BENZ S420 4.2 V8 GAS Wiring Diagram Components on diagram: |
1999 MERCEDES-BENZ S420 4.2 V8 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1999 MERCEDES-BENZ S420 AUTOMOBILES
OEM TSB listings for most 1999 MERCEDES-BENZ S420 cars and light trucks sold in the U.S. from 1985+.
Document: Maintenance Systems Overview Vehicle: 1999 MERCEDES-BENZ S420 4.2 V8 GAS Auto Systems: |
Document: Introduction of Improved Single-Component Windshield/Window Bonding System Vehicle: 1999 MERCEDES-BENZ S420 4.2 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1999 MERCEDES-BENZ S420 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1999 MERCEDES-BENZ S420 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 1999 MERCEDES-BENZ S420 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 1999 MERCEDES-BENZ S420 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 1999 MERCEDES-BENZ S420 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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