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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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5x NGK 4656 R7438-9 Racing Zündkerze AUDI RS3 (8V) RSQ3 (8Q) TTRS (8J FV) 2.5 TFSI

Item No.: PKT872W311
Manufacturer: NGK
part number: 4656
???item.ean.code???: 087295146569

  • 5x Spark Plug Piece - NGK 4656
194,95 EUR

incl. VAT, excl. shipping costs

Currently not available at the time

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

Item No.: UNI564W011
Manufacturer: NGK
part number: 4656
???item.ean.code???: 087295146569
Baugruppe: Zündanlage
Mengeneinheit: Stück
41,95 EUR

incl. VAT, excl. shipping costs

Currently not available at the time

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

mit Drucksensor | entspr. Opel OE: 1214101 / 55590467

Item No.: A16514W483
Manufacturer: BERU
part number: PSG006
???item.ean.code???: 4014427141709
Gluehkerzenausfuehrung: nachglühfähig
Baugruppe: Glühanlage
Einbautiefe_mm: 35
Anschlusstechnik: 4 mm PIN (PSG)
Schluesselweite: 12 mm
Mengeneinheit: Stück
Stromstaerke_a: 8,5
Gewindemass: M9x1,0
Anzugsdrehmoment_Bis_nm: 10
Laenge_Ueber_Alles_mm: 179,95
Bruchmoment_nm: 22
Anzugsdrehmoment_Von_nm: 8
Spannung_v: 4,4
Konussteigung: 93
82,95 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart

4x NGK 1095 BCPR7ES-11 Zündkerze SAAB 9-3 (YS3D) 9-5 (YS3E) 900 II 9000 2.0 Turbo 2.3 t

auch für FORD ESCORT IV ORION II 1.4 73 PS

Item No.: PKT062W704
Manufacturer: NGK
part number: 1095
???item.ean.code???: 87295110959

  • 4x Spark Plug Piece - NGK 1095
14,50 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart

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

entspricht BMW OE-Nummer: 12 13 1 748 017

Item No.: PKT162W147
Manufacturer: BREMI
part number: 11860T
???item.ean.code???: 4017534075561

  • 6x Ignition Coil Piece - BREMI 11860T
129,94 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart

4x NGK 3172 BUR6ET Zündkerze VW Golf 1 2 3 Passat Polo T3 T4 Vento 101000036AA

Item No.: PKT062W754
Manufacturer: NGK
part number: 3172
???item.ean.code???: 87295131725

  • 4x Spark Plug Piece - NGK 3172
18,50 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart

6x DELPHI GN10571-12B1 Zündspule für BMW 6 Zylinder BENZINER 12138616153

Item No.: PKT472W610
Manufacturer: DELPHI
part number: GN10571-12B1
???item.ean.code???: 5012759497753

  • 6x Ignition Coil Piece - DELPHI GN10571-12B1
113,05 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart


auch für VITARA | 35 37 38 63 64 68 75 PS

Item No.: UNI823W007
part number: J5718006
Gluehkerzenausfuehrung: nachglühfähig
Anschlusstechnik: M5/3Nm
Spannung_v: 11
Einbautiefe_mm: 25
Baugruppe: Glühanlage
Mengeneinheit: Stück
Gewindemass: M12x1.25
Laenge_1_mm: 32
Laenge_2_mm: 24,5
Laenge_Ueber_Alles_mm: 71
Bruchmoment_nm: 45
Anzugsdrehmoment_nm: 22
8,95 EUR

incl. VAT, excl. shipping costs

short term available / 3-4 working days
add to cart

BOSCH Zündkerze ZR5TPP330 BMW 1er 2er 3er 4er 5er 6er 7er N20 N55 N63 S55 S63

BOSCH: 0 242 145 541 | BMW: 12 12 0 039 664

Item No.: A02524W603
Manufacturer: BOSCH
part number: 0 242 145 541
???item.ean.code???: 4047025301640
Pol_Anzahl: 1
Anziehwinkel_grad: 0
Gewindesteigung_mm: 1,25
Aussengewinde_mm: 12
Mengeneinheit: Stück
Schluesselweite: 14
Baugruppe: Zündanlage
Gewindelaenge_mm: 26,5
Ausstattungsvariante: ZR 5 TPP 330
Elektrodenabstand_mm: 0,8
Anzugsdrehmoment_nm: 23
Funkenlage_mm: 7
10,67 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart


120 135 145 PS | auf Einschränkung achten!

Item No.: UNI723W956
part number: J5711031
Gluehkerzenausfuehrung: nachglühfähig, Stabglühkerze
Spannung_v: 11
Einbautiefe_mm: 25
Baugruppe: Glühanlage
Mengeneinheit: Stück
Gewindemass: M10x1
Laenge_1_mm: 105
Laenge_2_mm: 24
Anzugsdrehmoment_nm: 15
Bruchmoment_nm: 35
Anschlusstechnik: PIN
Laenge_Ueber_Alles_mm: 150
12,95 EUR

incl. VAT, excl. shipping costs

short term available / 3-4 working days
add to cart

4x BOSCH FQR8LEU2 0242229699 Zündkerze OPEL Astra Corsa Insignia Mokka Zafira 1.2-2.0

Item No.: PKT672W785
Manufacturer: BOSCH
part number: 0 242 229 699
???item.ean.code???: 3165143408780

  • 4x Spark Plug Piece - BOSCH 0 242 229 699
15,45 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart

6x BERU ZS178 Zündspule für PORSCHE 911 (996 997) BOXSTER (986 987) CAYMAN (987)

PORSCHE OE-Nr. 99760210402 / 99760210404

Item No.: PKT872W925
Manufacturer: BERU
part number: ZS178
???item.ean.code???: 4044197776535

  • 6x Ignition Coil Piece - BorgWarner (BERU) ZS178
195,95 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to 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.