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2003 Audi TT CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Audi 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 2003 Audi TT AUTOMOBILES
Audi -> Component Replacement & Adjustment -> Cabin Air Filter, Replace -> A4 -> A6, Allroad & S6 -> A8 & S8 -> TT
Vehicle: 2003 Audi TT 1.8 L4 GAS
A4
- Remove righthand plenum chamber cover.
- Unclip cover and pull forward.
- Remove cabin air filter from housing.
- Reverse procedure to install. Ensure filter housing cover is clipped into both notches and flow direction arrow on filter is correctly installed, Fig. .
A6, Allroad & S6
- Remove plenum chamber cover.
- Fold back cabin air filter catches.
- Remove cabin air fi...
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BRAKE SERVICE PROCEDURES FOR 2003 Audi TT AUTOMOBILES
Power Brake Units -> Precautions -> Battery Ground Cable -> Radio Coded Anti-Theft System
Vehicle: 2003 Audi TT 1.8 L4 GAS
Radio Coded Anti-Theft System
Prior to disconnecting the battery or removing the audio system, obtain the security code from the vehicle operator. Refer t...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Audi TT AUTOMOBILES
Audi -> Fuel Filter Replacement -> Gasoline Engines -> Removal & Installation
Vehicle: 2003 Audi TT 1.8 L4 GAS
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.
Obtain the vehicle owner's radio theft protection code, then disconnect the battery ground cable. Briefly open fuel filler cap to relieve system pressure, then close it again.
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.
Removal & Installation
On A4 and S4 mod...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Audi TT AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2003 Audi TT 1.8 L4 GAS
- Raise and support vehicle, then remove front wheel.
- Remove drive axle flange to transaxle flange attaching bolts.
- Remove ball joint to wheel bearing housing retaining nut.
- Separate ball joint from wheel bearing housing using suitable tool.
- Remove axle nu...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Audi TT AUTOMOBILES
Starter, Replace
Vehicle: 2003 Audi TT 1.8 L4 GAS
- Obtain radio anti-theft protection code.
- On models equipped with A/C, proceed as follows:
- Remove front bumper.
- Remove three quick release screws on front of sound insulation panel.
- Remove air intake duct between the header panel and air cleaner.
- Remove wiring harness clamps located at lefthand side of radiator frame.
- Remove bolt (2), Fig. , and install suitable support tool.
- Install suitable support tool to lefthand side bore, Fig. .
- Remove bolts (1) and (3), then bolt (4) and pull header panel outward until the stop is reached.
- Install suitable M6 bolts into rear bore holes of header p...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 Audi TT AUTOMOBILES
Cabin Air Filter Service -> Audi -> 1998-2004 A6, Allroad, RS6, S6 & 2000-06 TT
Vehicle: 2003 Audi TT 1.8 L4 GAS
On 1998-2000 models, the cabin air filter should be replaced every 15,000 miles.
On 2001-03 models, the cabin air filter should be replaced every 20,000 miles.
On 2004-07 models, the cabin air filter should be replaced at 15,000 miles, then every 20,000 miles.
- Open the hood.
- Remove the plenum chamber cover.
- Release the cabin air filter retaining tab ca...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Audi TT AUTOMOBILES
Audi -> Service Indicator Lamp -> 1998-2004 -> Less Scan Tool -> With Scan Tool
Vehicle: 2003 Audi TT 1.8 L4 GAS
With Scan Tool
- Connect VAG 1551 scan tool and VAG 1551/3 adapter cable, or equivalents, to diagnostic connector.
- "Rapid Data Transfer" will be displayed.
- Initiate adaptation function 10 as follows:
- Press buttons 1 and 0 to select adaptation function 10.
- Press Q button to confirm input.
- Press buttons 0 and 2 to insert channel number 02.
- Press Q button to confirm input.
Less Scan Tool
- Place ignition to Off position.
- Press reset button for trip recorder in instrument cluster and place ignition switch in On pos...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Audi TT AUTOMOBILES
Radiator, Replace
Vehicle: 2003 Audi TT 1.8 L4 GAS
- Remove front bumper.
- Unbolt cooling pipe for power steering fluid.
- Place suitable drip pan underneath engine.
- Open coolant open expansion tank cap.
- Turn radiator drain plug counterclockwise, and attach accessory hose to connection flange if required.
- Remove coolant hoses at radiator and remove clip from connecting flange.
- On models equipped with automatic transaxle,remove ATF lines from radiat...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Audi TT AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 Audi TT 1.8 L4 GAS
- Put lock carrier into service position.
- Mark direction of engine rotation on belt.
- Slacken belt by turning tensioner in directi...
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COMPONENT LOCATION DIAGRAMS FOR 2003 Audi TT AUTOMOBILES
Component location diagrams for most 2003 Audi TT cars and light trucks sold in the U.S. from 1990+.
Instrument Panel Diagram for 2003 Audi TT 1.8 L4 GAS Components on diagram: |
Instrument Panel Connector Diagram for 2003 Audi TT 1.8 L4 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 2003 Audi TT AUTOMOBILES
OEM drawn wiring diagrams for most 2003 Audi TT cars and light trucks sold in the U.S.
2003 Audi TT 1.8 L4 GAS Wiring Diagram Components on diagram: |
2003 Audi TT 1.8 L4 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 Audi TT AUTOMOBILES
OEM TSB listings for most 2003 Audi TT cars and light trucks sold in the U.S. from 1985+.
Document: LATCH SYSTEM, INSTALLING/RETROFITTING - REVISED Vehicle: 2003 Audi TT 1.8 L4 GAS Auto Systems: |
Document: AUDI TIRE PRESSURE MONITORING SYSTEMS OVERVIEW - REVISED Vehicle: 2003 Audi TT 1.8 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 Audi TT AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Audi TT 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 2003 Audi TT 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 2003 Audi TT 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 2003 Audi TT 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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