Audi A4

since 1994 release

Repair and operation of the car



A4 Audi
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ System of an exhaust
+ Cooling system
+ Fuel tank and fuel pump
+ Air filter and channels of absorption
+ System of injection
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
- System of ignition
   That provides ignition
   When there is an ignition of fuel and air mix?
   Different systems of ignition
   So there is an ignition spark
   Executive body
   Brain of system
   The signals coming to the control unit
   Adjustment of a detonation
   Be careful in the address with ignition
   Works on system of ignition
   Search of malfunctions in ignition
   Ignition distributor
   Knot of a high voltage
   Replacement of spark plugs
   Right choice of spark plugs
   Check of the moment of ignition
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics





Right choice of spark plugs

Designations of candles

By means of the designations given in the table below you buy the necessary spark plugs for the Audi A4 model. What is behind figures and letters?

Kalilny number: spark plugs have to correspond to temperatures arising in engine combustion chambers.

The index gives information on temperature which the spark plug can sustain, i.e. is capable to give, without overheating. If the candle gives too much warmth, it does not reach self-cleaning temperature, and on spark plugs the soot is postponed.
Electrodes: In Audi A4 spark plugs only with three electrodes of weight are used.

Carving: in spark plugs for Audi A4 it has to be 19 mm long; diameter of a carving makes 14 mm.

Key pharynx width: the hexagon for installation on a candle in four - and six-cylinder engines in Audi A4 has width of 16 mm.

Sealing surface: for all engines candles with a flat sealing surface are provided. They have not removed sealing ring therefore there is no need for additional consolidation.

Spark plugs for Audi A4

The spark plugs listed in the table correspond to recommendations of Audi plant.

Engine
Conditional alphabetic reference
1,6 l / 74 kW of ADP
1,8 l / 92 kW of ADR
1,8 l / 110 kW of AEV
2,6 l / 110 kW of AVS
2,8 l / 128 kW of AAN
Bosch
F 7 LTCR
F 7 LTCR
F 7 LTCR
F 7 LTCR
F 7 LTCR
Distance between electrodes, mm
0,9–1,1
0,9–1,1
0,9–1,1
0,9–1,1
0,9–1,1
NGK
BKUR 6 ET
BKUR 6 ET
BKUR 6 ET
BKUR 6 ET-10
BKUR 6 ET-10
Distance between electrodes, mm
0,7–0,9
0,7–0,9
0,7–0,9
0,7–0,9
0,7–0,9









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