NGK catalogue 2008 / 2009 - Blackmoto

V-Line No. 1, 21,
22, 24, 27, 29
3ground electrode
spark plug
V-Line No. 2–12,
14–19, 28, 32,
33, 35
Spark plugs with Vgroove
in the center
electrode
V-Line No. 20, 23
2 ground electrode
spark plug
V-Line No. 30
4 ground electrode
spark plug
V-Line Spark Plugs offer
advantages of the whole line
V-Line No. 1, 21, 22, 24, 27, 29
3 Ground Electrode Spark Plugs for VW/Audi
NGK manufacture this type of spark plug specially for Volkswagen and Audi cars.
Nearly all new models can be fitted with it (see NGK catalogue for full listing).
They satisfy the service interval specified by the car manufacturer.
Technical Advantages
NGK Spark Plugs have a very wide heat range because they utilise superior
insulator matgerials and a copper cored centre electrode. This ensures better cold
starting and perfect ignition even under extreme engine operating conditions.
V-Line No. 2 - 12, 14 - 19, 28, 32, 33, 35
NGK’s patented V-grooved spark plugs
The principle is technically simple but very effective. A V-groove is situated in
the centre electrode of these V-Line spark plugs. This forces the spark to occur at
the outer edge of the centre electrode where it is easier to ignite the fuel/air
mixture. In addition, the voltage required to produce a spark is reduced. These
two features give the benefit of improved ignitability.
NGK V-line spark plugs offer perfect ignition of the fuel/air mixture.
Especially in modern low emission lean-burn engines, even under extreme
operating conditions.
V-Line No. 20, 23
The principle of the spark plug for BMW is to “catch” the current which is
leaking away over the deposits and create a spark. Spark discharge occurs
between insulator and ground electrode. The carbon deposits are removed and
the fuel/air mixture will be ignited.
V-line No. 30
This is the long-life spark plug BKR6EQUP developed in close cooperation
between BMW and NGK, which is equipped with a platinum middle electrode
and 4 earth electrodes together with state-of-the-art semi-surface gap spark
plug.
The semi-surface gap spark plug requires a special design of the insulator tip.
This ensures that the ignition spark always only jumps between the electrodes
which offer the most favourable conditions for reliable ignition of the fuel/air
mixture.
In view of the fact that the ignition spark slides over the insulator tip first before
it can jump over the air gap between insulator tip and earth electrode, any
deposits accumulated here are removed immediately, reliably preventing any
misfiring. This therefore guarantees optimum cold start behaviour at very low
temperatures and greatest ignition reliability even when the vehicle is only
driven for extremely short distances.
This new type of NGK spark plug is fitted in BMW engines from model year
1997. Retrospective approval has also been given for certain older BMW vehicles
from model year 1987.
16 GB