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Lexique VAG

Discussion dans 'Astuces, documentations et outillages' créé par TheTransporter, 26 Septembre 2005.

  1. Désolé c'est en anglais ... mais c déjà mieux que rien ;)
    Source: http://www.passatworld.com/forums/showthread.php?t=166320

    1.8T = 1.8L Turbocharged Engine
    One of the many designations of different engines used in VAG cars.
    However, the 1.8T is the base engine in the Passat, the V6 (not VR6) and W8 are optional engines in the North American markets. Elsewhere, there are 1.9L Diesels (See TDI) and 2.0 four cylinder versions as well, just to name a (very) few. See also VR6 and/or W8.

    1.9 TDI = 1.9L TDI (Turbo Direct Injection)
    One of VAG?s many diesel engines, but the one most likely to make it to the NA markets. The TDI process is one where fuel is injected straight into the cylinder, as opposed to the intake manifold above the intake valve. http://www.tdiclub.com/

    20V = 20 Valve
    A designation showing a 4 cylinder engine has a 5 valve cylinder head design. In the case of VAG, it denotes three intake and two exhaust valves per cylinder. This designation is sometimes used on the older 5 cylinder, 4 valve head, which also has 20 valves in it

    2.0T = 2.0L Turbocharged Engine
    The successor to the loved 1.8T engine.

    2.8L = 2.8L 5 Valve 6 Cylinder Engine
    Usually denotes the 2.8L, 90 degree, V6. The term is sometimes used (confused with) to describe the 2.8L (15 degree) VR6 engine. See VR6.

    3.0L = 3.0L 5 Valve 6 Cylinder Engine
    Usually denotes the 3.0L, 90 degree, V6. The next generation of the 2.8L V6 engine.

    4Motion = AWD (Quattro or Synchro)
    VW?s version of the vaunted Quattro All Wheel Drive System. Used to be called ?Synchro? on the Audi 4000 based VW Quantum. See also QUATTRO.

    5V = 5 Valve
    A designation showing an engine has a 5 valve cylinder head design. In the case of VAG, it denotes three intake and two exhaust valves per cylinder. Usually refers to the 20V 4-cylinder engine, but the same technology is used in the 2.8L V6 as well. http://www.engintecs.com/gallery/album18

    A6 Bar = A6 Strut Tower Bar
    An aluminum bar that sits behind the second firewall (just in front of the battery) to stiffen the front end of the Audi A6. This bar is commonly fitted to the Passat to improve handling and suspension characteristics.

    ABS = Anti-Lock Braking System
    A system that keeps the tires from locking up during hard stopping or braking on ice, resulting in better control of the car in such situations. http://www.howstuffworks.com/anti-lock-brake.htm

    A/C = Air Conditioning.
    A system that cools and (de)humidifies air.

    ASR = Anti-Slip Regulation
    A system that helps keep wheel spin under control during hard acceleration or cornering.

    AVS = Average Vehicle Speed
    The determination of a vehicle?s average speed driven over a given distance.

    AWD = All Wheel Drive
    A system for a vehicle to deliver the engine?s power to all 4 wheels when driving, as opposed to FWD or RWD vehicles. See QUATTRO or SYNCHRO.

    B5 = Chassis ?B?, Fifth Generation
    Manufacturers commonly label a platform or a car to identify it in their different design, marketing, sales and service processes.
    The current Passat and Audi A4 are produced on the VAG?s ?B? series design platform, and are the 5th iteration of this design. The new A4 is now on the B6 platform, and the MY05+ Passat is also expected to be on this next generation platform as well.

    B5.5 Chassis ?B?, Fifth Generation (Updated).
    Really, this is the above platform. In the middle of the 2001 MY, the B5 Passat got a facelift. People called it ?B5.5? to distinguish the two cars, and the unofficial name of B5.5 stuck. In reality, it is the same car, just with some trim and interior/exterior color changes and combinations. Also, there were minor software (Factory Chipping?) changes leading to more base HP (170 vs. 150) in the 1.8T.

    B6 = Chassis ?B?, Sixth Generation
    The next generation of the previous two B5 cars. This is the same platform as the new A4. http://www.vwvortex.com/artman/publ...icle_1108.shtml

    BAT = An abbreviation referring to a battery.

    The name for the result or process of mechanically increasing the intake or airflow of an engine.

    BOV = Blow Off Valve
    A device that releases excess pressure from a supercharged or turbocharged engine to the atmosphere when the computer determines a
    preset boost limit has been reached. This design is not used in the 1.8T, but sometimes a car will be converted from its stock design. See also DV.

    C6 = Now discontinued A6 platform
    Using the explanation for ?B5?, this is the same concept, only applied the Audi A6 (C platform), which started its (current) 6th generation in 1998. The C7 just hit the market (early 2004) and appears to have major chassis revisions, just as the B5/B6 transition did. The C6 is usually referenced against the B5, as the two share a lot of suspension and driveline components. Even though they are technically two different cars or platforms, they are commonly put in the same class due to such high parts interchangeability.

    C7 = Now Current A6 platform

    Camber = Vertical Wheel Alignment
    Camber is the ?leaning? of a car?s wheel. If you looked at a car from the end, and the wheels appear to not be sitting straight up (perpendicular to the pavement), you are seeing the car?s camber. A negative camber means the top of the wheels lean in, towards the car, and a positive camber means the wheel is leaning out, away from the car. http://www.familycar.com/alignment.htm#Cam

    CAN = Controller Area Network (Sometimes called CAN Bus)
    A Serial Bus network that is used in an in-car network to allow the various electronic controllers to communicate with one another, or to external diagnostic computers. This system is used for ease of diagnostics and service, and also to make the car run better.
    For example, when the CCM turns on the A/C, it will signal the ECU, via the CAN, to increase the engine RPM to lessen the drop in the engine?s idle RPM caused by the extra load of the A/C compressor. In the B5, this network transfers 1Mbit/sec. http://www.can.bosch.com/

    CAT = Abbreviation for the Catalytic Converter
    A device that chemically alters harsh compounds in the exhaust to not so harsh compounds. http://auto.howstuffworks.com/catalytic-converter.htm

    C-Bar = ?Chas? Bar or ?Andy? Bar
    An ingenious design for a lower ?body brace? in the Passat. The design ties together the driver and passenger side floor boards to add to the structural rigidity of the vehicle?s body. The two floor boards are normally not connected and can flex towards and away from each other during turns. The added stiffness makes the car handle and feel better when cornering by keeping the suspension points better aligned.

    CCM = Comfort Control Module
    Controls windows, A/C, heat and the like.

    CEL = Check Engine Light
    An indicator on the instrument cluster that is used by the car to tell you if it?s diagnostic system (See OBD) has detected a problem that needs to be diagnosed by a technician. Usually a code or DTC is in the computer?s memory telling the technician where to start looking for a problem.

    Chipping/Chipped = Software changes to an ECU or TCM.
    Chipping is when one changes the software to increase the performance of a car?s engine or transmission. This is commonly done to the 1.8T, seldom to the 2.8L engine, and occasionally to the TCM. The idea is to get more torque and HP from an engine; between 30 and 50 HP on a stock 1.8T and about 10HP on a V6.
    Reprogramming the TCM usually makes shifts quicker and more ?firm? as well as it lessens the feeling that the transmission is ?slipping?. Chipping is usually accompanied by intake or exhaust mods as well. The process will likely involve sending an ECU to a third party that will load and test the software, then send it back to you to re-install in the car. Some shops will chip an ECU while you wait. http://www.neuspeed.com/products/pr...s_euro&p_id=107

    COMBI = Combination Valve
    A valve, similar to an EGR valve that regulates exhaust gas and fresh air mixing for improved engine emissions.

    CV (Joint) = Constant Velocity (Joint)
    In the case of a CV Joint, it is a type of U (Universal) joint that allows a shaft to spin and be flexible at the same time, such as a driveshaft on a car.

    CVT = Continuous (Constant) Variable Transmission
    A transmission that uses a belt over pulleys to ?change? gears. To do this, the transmission adjusts the width (and diameter) of the pulleys, is essence changing their effective gear ratio. http://www.geocities.com/gkurka2001...h/tech_gear.htm

    DBW = Drive By Wire
    A system where your control of the throttle pedal is read by the computer, interpreted, and applied to the ECU?s regulation of engine speed and power. Also known to VAG as ?E-Gas?.

    DOHC = Double Overhead Cam
    Meaning two camshafts in a cylinder head, one to control intake valve timing and another to exhaust valve timing. Also see SOHC. http://auto.howstuffworks.com/camshaft.htm

    DOT = Department Of Transportation
    That ever present Federal organization that watches over the motoring masses by proposing laws to make us safer from one another. http://www.dot.gov/

    DTC = Diagnostic Trouble Code
    The trouble or problem code stored in a computer?s memory if the vehicle determines a problem or malfunction within one of its systems. See OBD. http://www.passatworld.com/forums/s...ad.php?t=150634

    DV = Diverter Valve
    A vacuum controlled valve in the 1.8T intake tract, that when activated, bleeds off excess pressure from the high pressure side of the turbocharger back in to the intake side of the turbocharger. This is the Boost control system used on the 1.8T, which differs from the more commonplace forced induction boost control design which uses a Blow Off Valve.

    ECU = Engine Control Unit
    A computer that controls and regulates engine performance, mileage, emissions, etc. http://auto.howstuffworks.com/car-computer1.htm

    E-Gas = Electronic throttle regulation
    See DBW.

    EGR = Exhaust Gas Recirculation
    A valve that regulates exhaust gas and fresh air mixing to improved emissions. See also COMBI.

    ET**= A way of measure a rim?s offset. ET35 means a rim?s center line is 35mm off of the mounting surface?s (hub?s) centerline.

    ET = Elapsed Time
    One measurement of a vehicle?s performance on the track.

    EVAP = Evaporative Canister or system
    A canister that holds evaporated fumes from the fuel system and dumps them into the engine at startup to help the engine start and/or to prevent releasing fumes to the atmosphere.

    FMIC = Front Mounted Intercooler
    A term used to refer to the location of the intercooler in some cars. This design is usually mounted in the front the car, under the front bumper, as opposed to the SMIC?s design, which is usually mounted in front of a front wheel, behind the wheel well liner, such is in our cars. See also SMIC.

    Forced Induction = Turbocharged or Supercharged Engine
    An engine that has a turbocharger or supercharger to force more air into it, which creates more power. http://auto.howstuffworks.com/turbo.htm

    FPR = Fuel Pressure Regulator
    A device that maintains a constant pressure of fuel inside the ?Fuel Rail? to ensure accurate and precise injection of fuel into the intake runners (manifold).

    FSU ? Fuel Sending Unit
    The unit in the fuel tank that sends a fuel level signal to the gauge.

    FWD = Front Wheel Drive
    This designation is given to vehicles that only apply the engine?s power to the front wheels. Most cars now are FWD as the power lost in the driveline is less (less moving parts = better fuel economy) and having the engine?s weight over the front wheels helps on slippery surfaces, but can be a detractor in performance vehicles.

    HP = Horsepower
    A measurement of a machines ability to produce power. http://www.howstuffworks.com/horsepower1.htm

    IB4TL = In Before The Lock
    A way to joke about a forum topic before a Moderator locks out posts.

    IC = Intercooler.
    An air to air radiator used to cool the compressed air from the turbocharger. When you compress air, it becomes very hot and expands at the same time. Cooling the air ?charge? helps keep the air denser and gets more into a cylinder on the intake stroke, which is why we turbo charge cars to begin with.

    ICM = Ignition Control Module.
    A device that follows signals from the ECU to fire the cylinder?s spark plugs. It is the 20th Century replacement of the Distributor. Used to be on the air box on 1.8T (B5), now integrated into ECU (B5.5+).

    IIHS = Insurance Institute for Highway Safety
    A consortium of insurance companies who test and make recommendations about cars and their safety. http://www.hwysafety.org/

    KPL = Kilometers per Liter (converted to MPG in English countries)
    A measure of kilometers driven per Liter of fuel used.

    LATCH = Lower Anchors and Tethers for CHildren
    A system designed to fit under/over the rear seat of a vehicle to anchor child seats. There are bars under the seat for the lower anchors of a car seat to fit to, as well as anchor points on the rear package shelf for the top or seatback of a child seat to clip into. http://www.nhtsa.dot.gov/people/inj...html/LATCH.html

    LED = Light Emitting Diode.
    A ?bulb? that emits light via a chemical reaction, not a heated element. Different chemical make-ups create different colors when the molecules are excited. This is the replacement in many newer cars of the old bulb and colored filter system. LEDs are how your dash is indigo blue at night. Look here: http://ledmuseum.home.att.net

    MAF = Mass Airflow Sensor (sometimes called MAFS)
    A device in the intake system that measures airflow into the engine. This is done by heating a wire in the intake air stream to a predetermined temperature, then reading the different electrical values in the wire caused by the air?s cooling of said wire. A mathematical equation is then applied to determine how much air is going into the engine.

    MAP (sensor) = Manifold Absolute Pressure
    A reading of the air pressure inside the intake manifold.

    MFA = Multi Function Adaptor
    The little computer display in the dash that tells you MPG, MTE, and AVS, etc.

    MIL = Malfunction Indicator Lamp (Light)
    The new name for the dreaded Check Engine Light.

    MKxx = VW Mark xx Platform Designation
    The Golf/Jetta platform designation. The cars are called the Mark series and each subsequent design change has a higher number than the previous. The pre 1999 design was the Mark III, the Jettas that just went out of production are the Mark IV, and the 2006 models are the Mark V. See also B5.

    Mod = Moderator or Modification
    Someone who monitors and controls these forums. Or, sometimes also known as the near relentless pursuit of Bankruptcy caused by the desire to modify your Passat.

    MPG = Mile per Gallon (KPL in Metric countries)
    A measure of miles driven per Gallon of fuel used.

    MTE = Miles to Empty
    A determination of drivable miles remaining based on a fuel tank?s current volume of fuel.

    MYxx = Model Year
    Denotes the model year the car was sold as. MY02 means it was sold as a 2002 Model Year vehicle. MY98 denotes a 1998 year car, MY2k a 2000 year car, etc.

    NA (Normally Aspirated) = Non-turbo or Supercharged Engine
    An engine that does not rely on Forced Induction to generate its power.

    NB= New Beetle
    Pretty much self explanatory. However, if you must see it, here you go: http://www.vw.com/newbeetle/index.html

    NHTSA = National Highway Traffic Safety Administration
    Part of the DOT, NHTSA helps determine and regulate safety issues for automobiles.

    OBD = On Board Diagnostics
    The system in place to allow a car to diagnose, adjust and report its own internal problems or malfunctions. The system logs and reports these errors to you (See MIL or CEL), and you then have a diagnostic system connected to the car to read the error (Diagnostic Trouble or DTC) codes. First became widespread in 1989. http://www.obdii.com/

    OBD-II = On Board Diagnostics, Generation 2
    The next version of the fore mentioned system. It is much more sophisticated than OBD was. First came online in MY96 cars. http://www.obdii.com/

    QUATTRO = Audi?s Full Time All Wheel Drive System
    An AWD drive system that constantly adjusts power distribution from the engine to all four wheels. As the conditions of the road change, the system will automatically adjust power to the wheel best able to use the power. The system is famous for its ability to help keep cars on the road and to navigate poor road conditions with ease.

    Phaeton = VW?s Flagship
    The Phaeton is a car designed to compete with, and beat, the likes of BMW?s 7-series and MB?s S-class sedans. It also competes with the A8, to a leeser degree.

    RPM = Revolutions Per Minute
    The measurement of a mechanical device?s cyclical speed or rotation. This measurement is used for devices that rotate or cycle, such as an engine, a turbocharger, a wheel, a driveshaft, etc.

    RWD = Rear Wheel Drive
    This designation is given to vehicles that only apply the engine?s output to the rear wheels. While most cars now are FWD, some high performance and sports cars use RWD to better apply power to the road during acceleration. RWD tends to use more fuel (more internal moving parts makes for more fuel used to move those parts) and be a little less stable on icy or poor roads, as the read ends of most RWD cars are lighter.

    S or ?S? Car = Denotes an Audi high performance car.
    Usually the ?A? in an Audi?s name is replaced with an ?S? or an ?RS?, such as the S4 or RS6. The S cars are usually higher performance cars and the RS designation means a super or ultimate performance level.

    Sidewinder = VAG Folding Key
    The keys we get on our cars that fold up into themselves are usually referred to as a Switchblade, due to it?s resemblance to the famous knife design. Also called Switchblade.

    SMIC = Side Mounted Intercooler
    A term used to refer to the location of the intercoolers in our cars, as well as the S4 and A6 2.7T, etc. This design usually implies that the intercooler mounted in front of a front wheel, as opposed to the FMIC?s design, which is usually under the front bumper. See also FMIC.

    SMOC = Side Mounted Oil Cooler
    A remote (sometimes stock) cooler added to a car to increase oil cooling capacity, usually mounted to the side of the engine bay, hence the term SMOC.

    SOHC = Single Over Head Camshaft
    Meaning one camshaft in a head, that controls both intake and exhaust valve timing. Also see DOHC. http://auto.howstuffworks.com/camshaft.htm

    SRS = Supplemental Restraint System.
    Usually refers to front airbags, side curtain bags as well as explosive seatbelt retractors.

    Stealership = A slang term applied to dealers who are less than honest or treat customers poorly. A term we?d like to hear less of here, but unfortunately it is very prevalent.

    SW = Service Writer
    The person you speak to at the counter when you are taking a car in for service.

    Switchblade = VAG Folding Key
    The keys we get on our cars that fold up into themselves are usually referred to as a Switchblade, due to it?s resemblance to the famous knife design. Also called Sidewinder.

    Synchro = VW?s Full Time All Wheel Drive System (Retired)
    An AWD drive system that constantly adjusts power distribution from the engine to all four wheels. As the conditions of the road change, the system will automatically adjust power to the wheel best able to use the power. The system is famous for its ability to help keep cars on the road and to navigate poor road conditions with ease. Replaced by the 4Motion system, referred to as ?Quattro? in Audi?s cars.

    TB = Throttle Body
    A valve in the intake system that regulates air flow into the intake manifold.

    TBA = Throttle Body Adaptation
    The process of manually (via electronic control) or electronically (See VAG Tool) adapting the car?s intake and or Engine Control System to the Throttle Body.

    TCM = Transaxle Control Module
    A computer used to control the TIPTRONIC automatic transaxle.

    TDI = Turbo Direct (or Diesel) Injection
    VAG?s turbo diesel engine design. It is a little different than most designs, whereas the fuel is injected directly into the combustion cylinder, as opposed to into the intake plenum right before the intake valve.

    TIA = Thanks In Advance
    A way of thanking someone for an answer to a question before they give it.

    Tip or Tiptronic = The ?Tiptronic? Automatic Transmission.
    An automatic transmission that allows manual gear selection while in the ?D? or Drive mode. http://www.geocities.com/gkurka2001...h/tech_gear.htm

    Toe = Wheel Alignment term
    A car?s toe is the measurement of the wheel?s (parallel or tracking) alignment to one another. If a car has a negative toe, the set of wheels tend to point in towards one another. If it has a positive toe, they point out from each other. http://www.familycar.com/alignment.htm#Cam

    Touareg = VW?s SUV
    The Touareg is VW?s high-end SUV, designed to compete with the likes of the Porsche Cayenne, the BMW X-class, as well as the MB M-class SUVs.

    TSB = Technical Service Bulletin
    A document released by a manufacturer to convey information about a product. Many manufacturers use these, including VAG. They are intended to show information that has come about after an owner?s manual or service manual has been printed, to update or suggest changes to a vehicle?s specifications, service schedule, maintenance routine, or even recall information. Some TSBs also cover issues like customer treatment or warranty changes, etc.

    U-Joint = Universal Joint
    A flexible coupling between to shafts, usually spinning, like a half-shaft or drive shaft, that allows the shaft to both spin and bend at the same time without binding up.

    VAG = Volkswagen AG, or Volkswagen Aktiengesellschaft
    The abbreviation of the German name for the actual Volkswagen Corporation. In some markets, the term "VAG" is used to denote the entire VW, Audi, Seat, Skoda, etc. group of companies.

    VAG Tool = The diagnostic tool at a dealership
    An electronic tool used to communicate and service VAG?s OBD-II equipped vehicles. The tool can pull and reset DTCs as well change various settings from complex engine software setting to simple things like how the alarm sounds.
    Here is a listing of privately owned VAG Tools: http://www.steve-hall.com/cgi-bin/VAG-Locator.pl

    VECI = Vehicle Emission Control Information
    A label near the right side firewall that contains information on the car?s emissions systems.

    VIN = Vehicle Identification Number
    A 17 digit code generated by a manufacturer to denote country of manufacture, model type, restraint type, engine type, model year, etc. and individual unit numbers of vehicles when they are produced. http://www.autoinsurancetips.com/volkswagen_vin.htm

    V6 = 6 Cylinder engine in a ?V? configuration
    An engine with 2 banks of 3 cylinders arranged in a ?V? shape, usually at a 60 or 90 degree offset. In ClubB5, it usually refers to the VAG corporate V6 engine, 2.8L or 3.0L, producing 190, 200 or 230HP, depending on the application. Variations include a 250HP 2.7L twin turbo design.

    VR6 = VW?s compact 2.8L V6 engine design
    This is a very narrow 6-cylinder ?V? design engine. The name is a combination of "Vee" and "Reihenmotor", the rough (very) translation of which means "In-Line Vee". This is because the design is one of a very compact block (a 15 degree V) that gives the engineers the ability to use one cylinder head to cover both banks of cylinders, like an in-line engine would use. Not to be confused with the standard 2.8L V6.

    VSS = Vehicle Speed Sensor
    A sensor, usually on the vehicle?s wheels or transmission that tells the driver and the computer(s) how fast the vehicle is traveling at any given time. Most newer cars have a speed sensor at each wheel, which is used by the ABS to determine if a wheel is about to lockup. The computer uses the average of all four wheels as the basis for the information relayed to the driver.

    W8 = Compact 8 cylinder engine
    A VW designed 4.0L, 8 cylinder engine based on the VR6 design, that allows an 8 cylinder engine to fit in roughly the same under hood space as the VR6 2.8L engine. The term W comes from the offset of the cylinders in the block that allow them to be closely spaced together. The design resembles two V4 engines grafted together at the center, making a ?W? shape in the process.
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