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The ignition system / glow system in the vehicle - all spare parts for your ignition system at a glance

The ignition, i.e. the ignition of the fuel takes place with the ignition system of the car. Fire residues and mechanical wear are unavoidable in this system. Therefore it is worthwhile to check and maintain the ignition system regularly. In our shop you will find high-quality spare parts for both petrol and diesel engines. Additionally we explain all components and the functions of the individual parts in the lower part of the page!

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4x NGK Zündkerzen 1095 BCPR7ES-11 für Ford Escort IV Orion Saab 9-3 9-5 900 9000

item ref.: PKT062W704
manufacturer: NGK
part number: 1095
EAN-Nr.: 87295110959

  • 4x Spark Plug Piece - NGK 1095
14.50 EUR

incl. legal tax, + shipping fees

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NGK Racing Zündkerze 4656 R7438-9 für AUDI TT RS RS3 2.5 TFSI

item ref.: UNI564W011
manufacturer: NGK
part number: 4656
EAN-Nr.: 087295146569
Baugruppe: Zündanlage
Mengeneinheit: Stück
42.95 EUR

incl. legal tax, + shipping fees

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BREMI 20126 Zündspule AUDI S4 B6 B7 A6 C6 4.2 quattro A8 4E 3.7/4.2 quattro

entspricht: AUDI: 077 905 115 Q / 077 905 115 T

item ref.: A18514W204
manufacturer: BREMI
part number: 20126
EAN-Nr.: 4017534174714
Baugruppe: Zündanlage
Spannung_v: 12
Mengeneinheit: Stück
25.05 EUR

incl. legal tax, + shipping fees

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4x NGK 93231 Zündkerze AUDI A1 A3 Q3 VW Golf 6 7 Jetta Passat Polo Up 1.2/1.4 TSI

auch für Seat Ibiza Leon Mii Skoda Citigo Fabia Octavia

item ref.: PKT862W167
manufacturer: NGK
part number: 93231
EAN-Nr.: 87295932315

  • 4x Spark Plug Piece - NGK 93231
41.95 EUR

incl. legal tax, + shipping fees

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BERU ZSE042 Zündspule für PORSCHE CAYENNE (9PA) (92A) PANAMERA (970) 4.8

entspricht PORSCHE OE-Nummer: 948 602 104 13

item ref.: A09514W119
manufacturer: BERU
part number: ZSE042
EAN-Nr.: 4014427107965
Baugruppe: Zündanlage
Mengeneinheit: Stück
Anschlusstechnik: SAE-Kontaktfeder
Supplementary Article/Supplementary Info 2: mit Elektronik
Spannung_v: 12
Anschlussanzahl: 1
Benoetigte_Stueckzahl: 8
Laenge_Incl_Steckercm: 17,2
Zuendspule: inkl. Zündkerzenstecker
35.95 EUR

incl. legal tax, + shipping fees

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DELPHI GN10401-12B1 Zündspule OPEL Adam Astra J Corsa D E Zafira C 1.2 1.4 95528319


item ref.: A16514W237
manufacturer: DELPHI
part number: GN10401-12B1
EAN-Nr.: 5012759503911
Baugruppe: Zündanlage
Mengeneinheit: Stück
64375936: 7
Spannung_v: 12
91.00 EUR

incl. legal tax, + shipping fees

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MEYLE 1009050000 Zündschalter Zündschloss Startschalter 8-polig für AUDI SEAT VW

item ref.: UNI214W013
manufacturer: MEYLE
part number: 100 905 0000
EAN-Nr.: 4040074215685
Verwendung: Zündung/Anlasser
Pol_Anzahl: 8
Mengeneinheit: Stück
Baugruppe: Startanlage
10.95 EUR

incl. legal tax, + shipping fees

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4x BOSCH Zündkerze Set NICKEL FR7DC+ 7955 +8 0242235666

Schlüsselweite 16 Elektrodenabstand 0,9mm 1-polig

item ref.: PKT062W711
manufacturer: BOSCH
part number: 0 242 235 666
EAN-Nr.: 3165143134344

  • 4x Spark Plug Piece - BOSCH 0 242 235 666
10.45 EUR

incl. legal tax, + shipping fees

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6x NGK Zündkerze V-Line 30 6343 BKR6EQUP für Audi BMW Mini Porsche

auch für Land Rover Ranger Rover III (LM) 4.4 4x4

item ref.: PKT762W442
manufacturer: NGK
part number: 6343
EAN-Nr.: 87295063439

  • 6x Spark Plug Piece - NGK 6343
44.45 EUR

incl. legal tax, + shipping fees

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BOSCH 0242145535 ZR5SPP3320 Zündkerze CITROEN PEUGEOT 1.2 THP 110/130 PS 9829930180

item ref.: UNI514W530
manufacturer: BOSCH
part number: 0 242 145 535
EAN-Nr.: 4047025221825
Baugruppe: Zündanlage
Schluesselweite: 14
Aussengewinde_mm: 12
Elektrodenabstand_mm: 0,75
Funkenlage_mm: 5
Gewindesteigung_mm: 1,25
Mengeneinheit: Stück
Gewindelaenge_mm: 26,5
Anzugsdrehmoment_nm: 23
Anziehwinkel_grad: 90
Pol_Anzahl: 1
7.95 EUR

incl. legal tax, + shipping fees

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für 1.0 + 1.0 TSI + 1.2 TSI + 1.4 TSI | VAG: 04E905612C

item ref.: PKT972W088
manufacturer: BOSCH
part number: 0 241 145 523
EAN-Nr.: 4047026207033

  • 4x Spark Plug Piece - BOSCH 0 241 145 523
31.95 EUR

incl. legal tax, + shipping fees

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6x BOSCH 0242229656 WR8DC+ Zündkerze PORSCHE 928 4.5 AUDI BMW VW MB OPEL FORD

auch für ALFA ROMEO HONDA | PORSCHE OE: 99917017090

item ref.: PKT062W889
manufacturer: BOSCH
part number: 0 242 229 656
EAN-Nr.: 3165143134245

  • 6x Spark Plug Piece - BOSCH 0 242 229 656
12.95 EUR

incl. legal tax, + shipping fees

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The differences between a glow and an ignition system briefly explained

With a petrol engine, a fuel-air mixture is sucked in. This is then compressed and the spark plug ensures ignition. The hot gas sets the piston in motion towards the crankshaft. Via the connecting rod, this movement is converted into the rotary movement of the crankshaft. The diesel engine, on the other hand, only sucks air into the cylinder. This is mixed with the fuel only in the combustion chamber. The very high pressure in the combustion chamber causes the mixture to ignite. Thus the piston is pressed down here as well. Because of the different working methods, the diesel engine is also referred to as the annealing system.

The differences between the two motor drives once again briefly compared:

Petrol engineDiesel engine
Mixture formation
  • External mixture formation
  • Internal mixture formation
  • Positive ignition
  • Auto ignition
Compaction pressure
  • 8 to 18 bars
  • 30 to 50 bars
Maximum temperature
  • 400 to 600°C
  • 700 to 900°C

The stationary ignition (fully electronic ignition system)

Modern gasoline engines today are equipped with fully electronic ignition systems. This means that each cylinder has its own ignition coil. This is connected to the ignition distributor, which in turn distributes the voltage to the individual spark plugs. The fully electronic ignition system has no more mechanical parts and is therefore less susceptible to wear.

The following components belong to an ignition system in a petrol engine:

An annealing system for diesel engines includes the following components:

The individual components of the ignition system / glow system briefly described

1. Ignition coil / ignition modules:

  • The technical structure is similar to a transformer
  • Its task is to convert a low voltage (on-board voltage) into a high voltage
  • It contains an iron core and two windings of copper wire (primary and secondary winding)
  • Each cylinder has its own ignition coil with spark plug
  • Current flows through the primary winding and thus a magnetic field is created around the iron core
  • The secondary winding has many more turns, so a high voltage is generated
  • The current is switched off, thereby the magnetic field collapses and the ignition spark occurs
  • Ignition coils bring the on-board voltage from 12V to 15.000 to 30.000 Volt

2. Ignition distributor:

  • In modern, fully electronic ignition systems the ignition distributor is no longer installed
  • It transmits the current of the ignition coil always alternately to the individual spark plugs
  • Rotating distributor rotor transmits current to the respective distributor caps
  • Thus the sparks are forwarded to the spark plugs
  • One rotation of the ignition distributor corresponds to the rotation of the camshaft

3. Ignition cables/ignition leads:

  • They transmit the voltage generated by the ignition coil to the spark plug
  • They must withstand very high temperatures and vibrations
  • Even small defects can cause the engine to run unevenly
  • In modern vehicles, single spark ignition coils are often installed, these are located directly on the spark plug

4. Spark plugs:

  • In the ignition system they emit the spark from the energy generated in the ignition coil
  • The ignition spark jumps over between the middle and ground electrode
  • Thread length, heat value and electrode distance must comply with manufacturer's specifications
  • They must be inserted correctly when replaced with a torque wrench

5. Glow plugs:

  • They are installed exclusively in the annealing system of diesel engines and heat up the combustion chamber when the engine is started (so-called preheating)
  • It reaches a temperature of over 1000 °C in a very short time and thus helps to heat the air
  • It is particularly helpful for rapid self-ignition during cold starts at low temperatures
  • Modern diesel engines with direct injection achieve a very fast preheating time
  • The afterglow time for modern glow plugs takes up to 3 minutes until the cooling water temperature has reached approx. 70 °C. Emissions are thus reduced

6. Ignition switch

  • The ignition starter switch is the contact part at the ignition lock, which switches the current
  • It activates the starter and the ignition coil of the petrol engine
  • With diesel, the ignition switch activates the magnetic valve, which in turn opens the fuel supply
  • The ignition lock also protects against theft
  • The ignition starter switch usually has four possible settings (the display varies from car to car):
    • "0" or "Lock": Switched-off power supply
    • "R" or "ACC": Consumers with low power consumption are released, e.g. radio
    • "1" or "On": All other consumers are released
    • "2" or "Start": This is used to start the engine

Detecting defects in the ignition system and in the glow system

As mentioned above, the components wear out over time. The following symptoms indicate a defect:

  • The motor does not start or only starts with difficulty
  • Increased fuel consumption
  • The car has misfires in the ignition
  • Poor acceleration and power loss
  • Engine indicator lamp / indicator lamp for glow system starts up
  • With diesel engines: the "nailing" sounds even when the engine is warm and smoke develops

Properly functioning ignition coils prevent fuel from running into the catalytic converter and thus protect the vehicle from consequential damage. A defective spark plug can be recognized by its appearance, for example. If it is sooty, oily, white or broken, a specialist should take a look at it. In this way, other damage can also be detected and repaired at an early stage. Other components such as the ignition cables can also wear out due to aging and the enormous heat. If the engine runs unevenly, you should not continue to drive under any circumstances. For this reason, the individual parts of the ignition system should be inspected regularly during maintenance.

For all components of the ignition system the replacement intervals of the vehicle manufacturer should be observed. The higher the quality of the parts, the more reliably they will last until the next replacement interval. With glow plugs, the better the quality, the longer the service life. Therefore you will find only high-quality branded goods in OEM quality at a reasonable price. For many petrol engines we have also put together suitable ignition system sets where you can save money directly. When you select your vehicle, you will be shown suitable offers, which then only need to be checked against the vehicle-specific requirements. If you are not sure which parts are suitable for your ignition system or for your glow system, you are welcome to contact our customer service.