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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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6x BREMI Zündspule + Zündkerzenstecker BMW BENZINER M50 M52 M54 M62 M73 S50 S62

entspricht BMW OE-Nummer: 12 13 1 748 017

item ref.: PKT162W147
manufacturer: BREMI
part number: 11860T
EAN-Nr.: 4017534075561

  • 6x Ignition Coil Piece - BREMI 11860T
119.95 EUR

incl. legal tax, + shipping fees

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5x NGK Racing Zündkerze 4656 R7438-9 für AUDI TT RS RS3 2.5 TFSI

item ref.: PKT872W311
manufacturer: NGK
part number: 4656
EAN-Nr.: 087295146569

  • 5x Spark Plug Piece - NGK 4656
192.95 EUR

incl. legal tax, + shipping fees

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und weitere Modelle | Einschränkung beachten!

item ref.: UNI514W018
manufacturer: BOSCH
part number: 0 242 232 802
EAN-Nr.: 3165141077186
Aussengewinde_mm: 14
Schluesselweite: 16
Gewindesteigung_mm: 1,25
Elektrodenabstand_mm: 1,0
Anziehwinkel_grad: 90
Pol_Anzahl: 4
Mengeneinheit: Satz
Baugruppe: Zündanlage
Anzugsdrehmoment_nm: 28
Funkenlage_mm: 4
Ausstattungsvariante: FR 78 X
Gewindelaenge_mm: 19
16.40 EUR

incl. legal tax, + shipping fees

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BERU Glühkerze PSG006 0103010907 für OPEL ASTRA J INSIGNIA A ZAFIRA C 2.0 CDTI

mit Drucksensor | entspr. Opel OE: 1214101 / 55590467

item ref.: A16514W483

part number: nicht zutreffend
EAN-Nr.: 4014427141709
Gluehkerzenausfuehrung: nachglühfähig
Anschlusstechnik: 4 mm PIN (PSG)
Baugruppe: Glühanlage
Einbautiefe_mm: 35
Schluesselweite: 12 mm
Stromstaerke_a: 8,5
Anzugsdrehmoment_Bis_nm: 10
Laenge_Ueber_Alles_mm: 179,95
Bruchmoment_nm: 22
Gewindemass: M9x1,0
Mengeneinheit: Stück
Konussteigung: 93
Spannung_v: 4,4
Anzugsdrehmoment_Von_nm: 8
81.95 EUR

incl. legal tax, + shipping fees

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4x NGK Zündkerze LASER PLATINUM 90223 PLZKBR7B8DG BMW 1er F20 MINI R55 R56 R57

OE-Nr 12120034098, passt auch für R58 R59 R60, 1598ccm

item ref.: PKT062W736
manufacturer: NGK
part number: 90223
EAN-Nr.: 87295902233

  • 4x Spark Plug Piece - NGK 90223
38.00 EUR

incl. legal tax, + shipping fees

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entspricht VAG OE-Nummer: 06H 905 601 A

item ref.: PKT062W707
manufacturer: NGK
part number: 1675
EAN-Nr.: 87295116753

  • 4x Spark Plug Piece - NGK 1675
38.95 EUR

incl. legal tax, + shipping fees

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6x NGK Zündkerze V-Line 30 6343 BKR6EQUP 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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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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4x NGK Zündkerzen Set 91785 ZKBR7A-HTU 1er E81/87 3er E90/91 5er E60/61 F10/11

Baujahr beachten! BMW OE-Nummer 12120038349 12127550011

item ref.: PKT062W948
manufacturer: NGK
part number: 91785
EAN-Nr.: 87295917855

  • 4x Spark Plug Piece - NGK 91785
26.95 EUR

incl. legal tax, + shipping fees

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6x BOSCH Glühkerze Set Duraspeed GLP173 0250603006 BMW 12230035934

BMW 116-125d 316-330d 520-535d 730/740d xDrive16-40d

item ref.: PKT062W992
manufacturer: BOSCH
part number: 0 250 603 006
EAN-Nr.: 4047024296169

  • 6x Glow Plug Piece - BOSCH 0 250 603 006
96.00 EUR

incl. legal tax, + shipping fees

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4x NGK Zündspule Zündmodul 48041 U5014 4-POLIG AUDI A4 A5 A6 A8 Q5 Q7 PORSCHE VW

entspricht VAG OE-Nummer: 06E 905 115 E

item ref.: PKT572W552
manufacturer: NGK
part number: 48041
EAN-Nr.: 4010326480413

  • 4x Ignition Coil Piece - NGK 48041
95.85 EUR

incl. legal tax, + shipping fees

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6x NGK Zündkerze Set 3584 BKR6EKUB für AUDI A4 A6 / VW PASSAT 2.4 2.8 3.0 2.8V6

entspricht VAG OE-Nr. 101 000 035 HJ

item ref.: PKT062W759
manufacturer: NGK
part number: 3584
EAN-Nr.: 87295135846

  • 6x Spark Plug Piece - NGK 3584
30.75 EUR

incl. legal tax, + shipping fees

Add to shopping cart
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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.

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