gf1510p2000mff

Component description for spark plugs

Type gf · topic 15.10 · version 0100 · 2008-04-10

Applies to: ENGINE 271.946 in MODEL 203.746 as of Model Year 09 /Modification Year 08 model refinement package ENGINE 271.957 in MODEL 203.741 as of Model Year 09 /Modification Year 08 model refinement package

Where it sits

Function group 1 Engine › 15 Electrical system - engine › 15.10 Ignition system, general — Series 203 (models 741, 746)

Also applies to engines/gearboxes: 271 946, 271 957

GF15.10-P-2000MFF

Component description for spark plugs

22.2.08

ENGINE 271.946 in MODEL 203.746 as of Model Year 09 /Modification Year 08 model refinement package

ENGINE 271.957 in MODEL 203.741 as of Model Year 09 /Modification Year 08 model refinement package

Component description for spark plugs

P15.10-2094-02

Original spark plug shown

R4 Spark plugs

Location

For each cylinder, one spark plug is screwed centrally into the cylinder head from above.

Task

Spark plugs ignite the suctioned and compressed fuel-air mixture due to arcing between electrodes.

Function

The ignition voltage flows from the ignition lines of the directly plugged in ignition coils (T1) to the spark plugs and causes arcing in the air gap between the central electrode and ground electrode.

All spark plug characteristics are defined by type symbols provided by the manufacturer (e.g. heat rating, seat shape, thread, width across flats, electrode material, spark position).