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6 Glossary
These explanations only apply to „Maintenance Manual“. They
are not necessarily generally valid!
Term Explanation
ABS Anti-lock brake system: the ABS is a regulating system in the brake system, that pre‐
vents locking when braking. This helps to maintain directional stability and steerability.
AUS 32 Abbreviation for 'aqueous urea solution' with a urea concentration of 32.5 %, see also
(AdBlue®) ⇒ page 150
AdBlue® Is an invented name.
This fluid is also called „NOx reducing agent AUS 32“, „AUS 32“ or „Diesel Exhaust Fluid“
for the USA
AdBlue® is a clear aqueous urea solution which is used for exhaust treatment to reduce
nitrogen oxides emissions and particulates.
AdBlue® is a registered trademark of the VDA (Verband der Automobilindustrie - Ger‐
man association of the automotive industry) in the USA, Germany, the European Union
and other countries.
The AdBlue urea solution is not mixed with diesel fuel, but is carried in a separate tank
in the vehicle.
ATF Automatic transmission fluid: gear oil for automatic gearboxes.
ATF level Filling level of ATF in gearbox
CO Carbon monoxide is produced when fuels containing carbon are not combusted com‐
pletely.
CN Cetane number: measurement unit for ignition quality of diesel fuel
DIN Deutsches Institut für Normung e.V (German institute for standardisation)
Dynamic high beam
regulation
„Dynamic Light As‐
sist“ DLA
Further development of the Headlight Assist function. In the area ahead of the vehicle
where vehicles are driving in front of or are coming towards the vehicle, the high beam
is masked in order to avoid dazzling other road users.
Part No. Abbreviation for part number
EN European standard
EOBD European onboard diagnosis
FAME Fatty acid methyl ester
FSI Fuel stratified injection: fuel stratified and homogenous fuel injection
TFSI Turbo fuel stratified injection
TSI From model year 2008 the designation TFSI is replaced by TSI. Therefore the desig‐
nation TSI is given to TSI turbocharger, TSI twincharger and TSI compressor.
TSI turbocharger: charging only with turbocharger
TSI twincharger: charging with turbocharger and compressor
TSI compressor: charging only with compressor
MIL Malfunction indicator light: American designation for exhaust emissions warning lamp
K83
OBD Onboard diagnosis: the OBD monitors all components influencing the exhaust emis‐
sions quality.
OBD-II American onboard diagnosis
Unit injector Unit injector for diesel engines
PR No. Abbreviation for production control number. Identifies among other things optional
equipment and country-specific deviations
PM Particulate matter: soot particulate value for diesel engine emissions
QG0 Vehicles are „not“ factory-fitted with components for LongLife service. For maintenance,
the time and distance dependent intervals (non-flexible intervals) apply.
Touareg 2010 ➤
Maintenance - Edition 11.2011
150 6. Glossary
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