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2009 MERCEDES-BENZ GL450 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT MERCEDES-BENZ REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Technical Service Bulletins
- Specifications
- Driveline, U-Joint & CV Axles Replacement
- Tire Pressure Monitoring System
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2009 MERCEDES-BENZ GL450 AUTOMOBILES
CV AXLE SHAFT, Replace -> Front -> Rear
Vehicle: 2009 MERCEDES-BENZ GL450 4.6 V8 GAS
Front
- Raise and support vehicle.
- Deactivate SBC brake system using STAR DIAGNOSIS.
- Empty rear air springs using STAR DIAGNOSIS.
- Remove front wheels.
- Remove collar nut from front axle shaft.
- Remove lower engine cover shields.
- Disconnect electrical lines from brackets at front wheel and on strut assembly.
- Remove brake hose from brake hose bracket, cut cable ties if required.
- Remove tie rod from steering knuckle.
- Remove nut from upper transverse rod and remove transverse rod from steering knuckle.
- Remove front axle shaft from front axle flange, using suitable removal tool.
- Swivel steeri...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2009 MERCEDES-BENZ GL450 AUTOMOBILES
Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Intermittent & Poor Connections -> Intermittents -> Poor Connections
Vehicle: 2009 MERCEDES-BENZ GL450 4.6 V8 GAS
Accessing Diagnostic Trouble Codes
Connect a suitably programmed STAR DIAGNOSIS scan tool to DLC (Data Link Connector) and follow manufacturer's instructions.
Clearing Diagnostic Trouble Codes
Connect a suitably programmed STAR DIAGNOSIS scan tool to DLC (Data Link Connector), and follow manufacturer's instructions.
Intermittent & Poor Connections
Intermittents
Most intermittents are caused by faulty electrical connections or wiring. Inspect for the following:
- Wiring broken inside insulation.
- Poor connection between male and female terminal at connector.
- Poor terminal to wire connect...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2009 MERCEDES-BENZ GL450 AUTOMOBILES
Alternator, Replace
Vehicle: 2009 MERCEDES-BENZ GL450 4.6 V8 GAS
- Disconnect battery ground cable.
- Remove front engine cover.
- Remove left and right intake air ducts.
- Remove drive belt.
- Remove cap and disconnect B+ from alternator.
- Remove connector for D+ from alternato...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2009 MERCEDES-BENZ GL450 AUTOMOBILES
Cabin Air Filter Service -> Mercedes-Benz -> 2006-09 ML, R & 2007-09 GL Class
Vehicle: 2009 MERCEDES-BENZ GL450 4.6 V8 GAS
On 2006-08 models except AMG, under normal operating conditions the cabin air filter should be replaced every 24 months or 26,000 miles. In dusty areas change the cabin air filter more often.
On 2009 models except AMG, under normal operating conditions the cabin air filter should be replaced every 24 months or 20,000 miles. In dusty areas change the cabin air filter more often.
On 2006-09 AMG models, under normal operating conditions the cabin air filter should be replaced every 24 months or 30,000 miles. In dusty areas change the cabin air filter more often.
- Open ...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2009 MERCEDES-BENZ GL450 AUTOMOBILES
Mercedes-Benz -> Check Engine Oil Level ->
Vehicle: 2009 MERCEDES-BENZ GL450 4.6 V8 GAS
A sensor mounted in the engine oil pan allows engine oil level to be displayed on the instrument panel trip odometer window. With the vehicle parked on a level surface, engine warmed up and shut off for 5 minutes, place ignition switch in the On position. An oil level icon along with a clock icon should appear in the trip odometer window. Press the knob to the left of the speedometer twice. The message OK, 1.0 qt., 1.5 qt., 2.0 qts., or...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2009 MERCEDES-BENZ GL450 AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2009 MERCEDES-BENZ GL450 4.6 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 2009 MERCEDES-BENZ GL450 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2009 MERCEDES-BENZ GL450 4.6 V8 GAS
- Open engine hood.
- Remove front engine cover.
- Rotate or lift belt tensioner arm counterclockwise, using a suitable tool to relie...
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TECHNICAL SERVICE BULLETINS FOR 2009 MERCEDES-BENZ GL450 AUTOMOBILES
OEM TSB listings for most 2009 MERCEDES-BENZ GL450 cars and light trucks sold in the U.S. from 1985+.
Document: Re-code the Software Calibration Number (SCN) Vehicle: 2009 MERCEDES-BENZ GL450 4.6 V8 GAS Auto Systems: |
Document: Maintenance Systems Overview Vehicle: 2009 MERCEDES-BENZ GL450 4.6 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2009 MERCEDES-BENZ GL450 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2009 MERCEDES-BENZ GL450 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 2009 MERCEDES-BENZ GL450 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 2009 MERCEDES-BENZ GL450 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 2009 MERCEDES-BENZ GL450 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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