What are ignition and glow plug systems used for?

Ignition and glow plug systems are used to ensure proper starting and stable engine operation in various conditions. The ignition system initiates a spark in a petrol engine, and the glow plug system preheats the combustion chamber in a diesel before starting and sometimes after starting as well. Their efficiency affects the smoothness of operation, exhaust emissions, and the ease of starting the unit.

What is the construction and function of an ignition module?

An ignition module is an electronic element controlling the transmission of a pulse to the coil or other ignition system parts. It acts as an intermediary between the control signal and the creation of a spark, which is why it must be compatible with the installation and engine type. When selecting, it is worth checking the OEM number, plug type, and how it works with engine sensors.

How to select a part for a specific engine version?

It is safest to compare the OEM number, engine unit code, connector type, and mounting location. In many cars, the same model generation could have been equipped with different coils, plugs, or modules, which is why it is also worth checking the VIN and equipment version.

What symptoms may indicate a problem with the ignition or glow plug system?

Typical symptoms include starting difficulties, uneven engine operation, misfiring, power loss, or longer cranking of the starter during a cold start. In practice, it is also worth assessing the condition of leads, connectors, plugs, and any signs of overheating at the connectors.

What mounting elements should be paid attention to before purchase?

It is worth checking the number of pins, plug type, mounting layout, and lead length if the element has them. Covers, seals, position in the engine bay, and compatibility with pre-facelift or post-facelift versions are also important if the manufacturer used different equipment variants.

Ignition Systems & Components

At the Global Parts automotive store, we offer a wide selection of original used car parts, including ignition and glow plug systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen and others. The ignition and glow plug systems we offer undergo quality control so that you can be sure that you are receiving a top-class product.

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BMW E81 E87 E87N Battery Cable Plus Pole Positive 9217017

€23.95

Free delivery: Aug 14 – 18

If paid before 14:00

Part no. A6519000900

Mercedes W204 Glow Plug Relay Unit Module W906 OM651 Diesel Engine A6519000900

€23.95

Free delivery: Aug 14 – 18

If paid before 14:00

Part no. 7599963-1

BMW E82 E88 E89 IBS Cable Battery Lead Negative Black Wire Wiring 7599963

€23.95

Free delivery: Aug 14 – 18

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Part no. 7801201

BMW E60 E65 E90 E91 M57N2 Preheating Control Unit Spark Glow Plugs

€42.95

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Part no. A6511501333

Mercedes W204 W212 W906 Glow Plug Wiring Relay OM651 Diesel A6511501333

€23.95

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Part no. A6519005502

Glow Plug Mercedes W204 W212 Vito OM651 Diesel Relay Unit Module A6519005502

€23.95

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Part no. 7599963

Battery Lead Cable BMW Z4 E82 E88 E89 Negative IBS Wire 7599963

€23.95

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Part no. 7559842-4

Ignition Coil BMW E81 E87 LCI E90 E91 E92 F10 F11 Petrol Bosch Set 7559842

€37.95

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Part no. A6519002203

Glow Plug Mercedes W176 W246 160 180 CDI Relay Unit Module A6519002203

€28.95

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Part no. A0045468140

Mercedes W204 W221 Distribution Block A0045468140

€28.95

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Part no. 9144884-2

BMW E81 X1 E84 E87 E90 Battery Distributor External Ignition Base 9144884

€23.95

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Part no. A6519005602

Glow Module Mercedes W204 W906 OM651.955 Plug Relay Control Unit A6519005602

€23.95

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Part no. 9442116

IBS Cable BMW F40 Battery Lead Negative Black Wire Wiring 9442116

€28.95

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Part no. A6519003103

Mercedes W906 OM651 Diesel Glow Plug Relay Module Control Unit A6519003103

€28.95

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Part no. 7509627

Ignition Spark Plug Pipe BMW E81 E83 E87 E90 E91 N46 Guide 7509627

€23.95

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Part no. A6401532779

Mercedes-Benz A B W169 W245 OM640 CDI Glow Plug Relay Unit Module A6401532779

€28.95

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Part no. 9217031-2

BMW 1 3 X1 Series E82 E84 E88 E90 E91 E92 LCI Battery Cable Plus Pole 9207519

€37.95

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Part no. 9184191

BMW X1 E82 E84 E88 E90 E91 E92 LCI Battery Cable Plus Pole 9184191

€28.95

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Part no. A6519002303

Mercedes W906 OM651 Diesel Glow Plug Relay Module Control Unit A6519002303

€23.95

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Part no. 7616199

BMW Z4 E82 E88 E89 Battery Lead Cable Negative IBS Wire 7616199

€23.95

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Part no. 7616199-1

BMW E82 E88 E89 Battery Lead Cable Negative IBS Wire 7616199

€37.95

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Part no. GK2A-220B08-FB

Ford Transit Mk8 Ignition Cylinder Lock Barrel Key Fob Remote Set GK2A-220B08-FB

€42.95

Free delivery: Aug 14 – 18

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Part no. 8E0905855C-3

VW Volkswagen Caddy 2K Ignition Lock Cylinder Switch With Key 8E0905855C

€37.95

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Part no. 3M51-3F880-AD

Range Rover Sport L320 Ignition Cylinder + Remote Key Fob 3M51-3F880-AD

€32.95

Free delivery: Aug 14 – 18

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Part no. 5K0905865-1

Audi A5 8T Q3 8U Ignition Starter Barrel Lock Switch Block 5K0905865

€28.95

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Part no. 8E0905855C-2

Volkswagen Golf 5G Mk7 Ignition Lock Cylinder Switch With Key 8E0905855C

€32.95

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Part no. 8E0905855C

Audi A4 B7 Ignition Lock Cylinder Switch With Key 8E0905855C

€37.95

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Part no. 9X2Q-12B533-BB

Land Rover Discovery 4 L319 Glow Plug Control Module Relay 9X2Q-12B533-BB

€23.95

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Part no. 9113151

BMW 1 3 Series E81 E87 E90 E91 E92 E93 Battery Cable Negative Wire Lead 9113151

€23.95

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Part no. 06E905115D-1

Audi A4 B7 A5 8T Volkswagen Touareg 7L Ignition Coil Spark Plug SET 06E905115D

€56.95

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Part no. MX73-189E2-AA

Range Rover Sport L494 Glow Plug Relay Module MX73-189E2-AA

€23.95

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Part no. 7798012

BMW 1 3 5 Series E60 E87 LCI E90 E91 N47 Preheater System Starter Cable Lead

€23.95

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Part no. 1T0820036C

Porsche Cayenne Turbo 92A Solenoid Valve Axillary Coolant Heater 1T0820036C

€28.95

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Part no. A6429007801

Glow Plug Mercedes W164 W211 W219 OM642 Relay Control Unit Module A6429007801

€75.95

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Part no. LR021632

Land Rover Discovery 4 L319 Petrol Webasto Auxiliary Heater AH22-18K463-AB

€146.95

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Part no. 107905855AJ-1

Seat Leon Mk3 5F Ignition Kit Set Switch Barrel With Key 107905855AJ

€51.95

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Part no. YWI100010

Land Rover Discovery 2 L318 Ignition Immobiliser Key Receiver Coil YWI100010

€23.95

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Part no. A2055457600

Mercedes C205 Power Distribution Rail Busbar Cover Bracket Mount A2055457600

€23.95

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Part no. 8E0905855C-4

Seat Ibiza 6J Ignition Lock Cylinder Switch With Key 8E0905855C

€37.95

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Part no. BH4Q-12B533-CA

Range Rover L405 Glow Plug Control Unit Relay Electrical Module BH4Q-12B533-CA

€23.95

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Part no. 7605104-1

BMW E90 LCI Spark Plug Cylinder Head Plug Slot Insert N55 Set X3 7605104

€51.95

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Part no. 7P6905843B-1

Volkswagen Touareg 7P Mk2 Ignition Switch Lock Barrel With Key 7P6905843B

€42.95

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Part no. 8E0905855C-1

Volkswagen Golf 5G Mk7 Ignition Lock Cylinder Switch With Key 8E0905855C

€37.95

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Part no. 3C0905843R

Volkswagen Passat CC Ignition Starter Switch Barrel Lock 3.6 FSI BWS 3C0905843R

€28.95

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Part no. 7595546

Spark Plug BMW F10 F20 F30 F32 N20 Petrol Engine Recess Insert 7595546

€23.95

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Part no. 7S7T-19H386-CB

Ford Mondeo Mk4 IV Ignition Barrel Mount Bracket Holder Support 7S7T-19H386-CB

€23.95

Free delivery: Aug 14 – 18

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Part no. A2135400017

Mercedes X253 W213 Negative Battery Ground Cable A2135400017

€23.95

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Part no. 7595545

Spark Plug BMW F10 F20 F30 F32 N20 Petrol Engine Recess Insert 7595545

€23.95

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Part no. A9069004001

Mercedes W906 Diesel Station Ignition Starter Switch Barrel Lock A9069004001

€284.95

Free delivery: Aug 14 – 18

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Part no. JEC000790

Land Rover Discovery 3 L319 Websato Pre Heater Unit JEC000790

€80.95

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Part no. 107905855CF-2

Audi A3 S3 8V Ignition Switch Barrel With Key 107905855CF

€56.95

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Part no. JEC000791

Range Rover Sport L320 Webasto Auxiliary Pre Heater 2.7 Diesel JEC000791

€80.95

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Part no. 04L907281

Audi Q3 8U 1.6 TDI Glow Plug Relay Module 04L907281

€23.95

Free delivery: Aug 14 – 18

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Part no. 1910150020

Toyota Lexus LS400 1UZ V8 Ignition Distributor Cap 19101-50020

€32.95

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Part no. AM5A-R3677-AA

Ford Focus Mk3 Ignition Barrel Lock Cylinder + Key AM5AR3677AA

€56.95

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Part no. 6G91-18K463-DC

Ford Mondeo Mk4 S-Max Mk1 Galaxy Mk3 Heater Matrix Electric Core 6G91-18K463-DC

€23.95

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Part no. 032905106E-2

Audi A3 8P BSE High Voltage Ignition Coil Pack 1.6 MPI Bosch 0 221 603 010

€28.95

Free delivery: Aug 14 – 18

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Part no. 107905855AJ-2

Seat Leon Mk3 5F Ignition Kit Set Switch Barrel With Key 107905855AJ

€51.95

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Part no. 1853057

Ford Transit Connect Mk2 Battery Positive Lead Cable Harness Wire DV6T-14A280-BD

€51.95

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Part no. AV61-12A343-BA

Land Rover Freelander 2 L359 Glow Plug Relay Module AV61-12A343-BA

€23.95

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Part no. 9803299780

Citroen Peugeot Ford Glow Plug Relay Module 51299058A 9803299780

€23.95

Free delivery: Aug 14 – 18

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Part no. 9144884

BMW 1 3 X1 Series E81 E87 E90 Distributor External Ignition Base 9144884

€23.95

Free delivery: Aug 14 – 18

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Part no. 6935078

BMW E65 E66 E67 Heater Actuator Positioning Drive Vent Flap Defrost 6935078

€23.95

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Part no. 8689694

BMW G20 G21 G30 G31 G32 X3 G01 Heater Coolant Water Control Valve Unit 8689694

€28.95

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Part no. 7559842-2

BMW E81 E87 LCI E90 E91 E92 F10 F11 Ignition Coil Petrol 7559842

€23.95

Free delivery: Aug 14 – 18

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Part no. LR036381

Range Rover Discovery Sport L494 Heater Radiator Resistor PTC Unit LR036381

€113.95

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Part no. 6C1T-14300-DC

Ford Transit Mk7 Battery Positive Lead Cable Harness Wire 6C1T-14300-DC

€32.95

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Part no. 6C1T-14300-BC

Ford Transit Mk7 Battery Positive Lead Cable Harness Wire 6C1T-14300-BC

€23.95

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Part no. J9C3-18D612-AA

Land Rover Discovery Sport L550 Heater Matrix Radiator J9C3-18D612-AA

€23.95

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Part no. CK52-14452-BC

Range Rover L405 Positive Battery Lead Power Distribution Unit CK52-14452-BC

€23.95

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Part no. 8490500

BMW U06 Power Supply Managment Cable Wire Harness 8490500

€23.95

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Part no. CK52-14452-AB

Range Rover L405 Power Distribution Control Unit CK52-14452-AB

€28.95

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Part no. 6C1T-14A280-EA

Ford Transit Mk7 Battery Negative Minus Lead Cable Harness Wire 6C1T-14A280-EA

€28.95

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Part no. A6519001300

Mercedes W906 Glow Plug Relay Unit Module OM651 Diesel Engine A6519001300

€23.95

Free delivery: Aug 14 – 18

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Part no. 7513032

Mini Cooper R50 W10 R53 S W11 Rear Ignition Spark Plug Cyl. 1 7513032

€23.95

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Part no. 4B0905851Q-2

Volkswagen Polo 6R Ignition Start Switch Barrel Remote Control Key 4B0905851Q

€32.95

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Part no. 7S7T-19H386-DA

Ford Mondeo Mk4 Ignition Immobiliser Reader Holder Bracket Mount 7S7T-19H386-DA

€23.95

Free delivery: Aug 14 – 18

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Part no. A4159009003-1

Mercedes W415 Glow Plug Relay Module Control Unit A4159009003 271202380R

€32.95

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Part no. 5A070B3

IBS Cable BMW F40 Battery Lead Negative Black Wire Wiring 5A070B3

€23.95

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Part no. 7805989

Mini Cooper R55 R56 W16 Diesel Intake Oil Pick Up Strainer Tube Pipe

€23.95

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Part no. AM5A-R3677-AB

Ford Focus Mk3 Ignition Steering Wheel Lock Cylinder + Key AM5A-R3677-AB

€56.95

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Part no. 1363940-HMPX

Ford Focus Mk3 Transit Mk7 HMPX Ignition Switch Barrel Lock Cylinder Keys Set

€37.95

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Part no. 7PP103907

Porsche Cayenne 92A Engine Ignition Coil Cover Left N/S 4.8 V8 Petrol 7PP103907

€32.95

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Part no. 9207521

BMW X1 Series E84 Positive Battery Red Cable Wiring Plus Lead 9207521

€23.95

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Part no. BG9N-18D612-AA

Range Rover Evoque L538 Heater Matrix Core 2.2 TDCI BG9N-18D612-AA

€23.95

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Part no. 7587463

BMW Z4 E82 E88 E89 Battery Negative Cable Lead Wire 7587463

€23.95

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Part no. 2036237

Ford Transit Mk8 Glow Plug Cover Trim Panel 2.0 TDCi GK21-12C546-AB

€23.95

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Part no. 6925899

Positive Cable Mini One D R50 W17 Battery Red Wiring Plus Lead B+ 6925899

€23.95

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Part no. 7835170

BMW 3 5 6 Series E60 M5 E63 M6 E90 E92 E93 M3 Ignition Spark Plug Pipe 7835170

€23.95

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Part no. 1685821

Ford Focus Mk3 Glow Plug Harness Electric Loom 71583580 1733055 AV6Q6M091AA

€23.95

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Part no. 8M5T-19H386-AC

Ford Kuga C394 Ignition Barrel Lock Cylinder Assembly 8M5T-19H386-AC

€23.95

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Part no. LR041675

Land Rover Discovery 4 L319 Petrol Webasto Auxiliary Heater AH22-18K463-BA

€61.95

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Part no. A6429005801

Mercedes W204 OM642 Glow Plug Diesel Relay Unit Control Module A6429005801

€70.95

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Part no. 5A1C977

BMW G45 G60 G61 G70 U06 X1 U11 B48X Heater Control Valve 5A1C977

€56.95

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Part no. 7513034

Mini R50 R53 Spark Plug Ignition Wire Cable Lead Cylinder 3 Petrol 7513034

€23.95

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Part no. 7798000

BMW 1 3 5 Series E60N E87 LCI E90 N47 Preheating Control Glow Plug Unit Diesel

Product currently unavailable

Part no. 6988974

BMW X1 E82 E84 E88 E90 E91 E92 LCI Battery Cable Plus Pole 6988974

Product currently unavailable

Part no. 7823325

Mini Cooper R55 R56 LCI R60 Preheating Control Glow Plug Relay Unit 7823325

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Part no. 7810856

BMW E90 E91 E92 LCI F07 GT F10 F11 Glow Plug Preheating Control Unit 7810856

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Showing 1-99 of 186 products

Ignition and glow systems for reliable engine starts in all conditions

Reliable ignition and glow systems ensuring confident engine starts

Ignition and glow plug systems are key components responsible for starting and efficient engine operation. In petrol engines, they ensure precise ignition of the fuel-air mixture, while in diesel units, they enable the combustion chamber to be preheated, which is particularly important in low temperatures. In the Global Parts automotive store, you will find a wide selection of used car parts, including ignition and glow plug systems, perfectly matched to brands such as BMW, Audi, Mercedes, Volkswagen, Mini and others.

Subcategories:

Distributors – Key components of ignition systems that evenly distribute voltage to the spark plugs.
Ignition leads and ignition coil connectors – Responsible for the efficient transmission of electrical energy to the spark plugs.
Other – Contains additional components supporting the ignition and glow plug system.
Glow plugs – Essential in diesel engines for preheating the combustion chamber, especially in winter conditions.
Spark plugs – Crucial for ignition in petrol engines, ensuring precise combustion of the fuel-air mixture.
Other ignition parts – Supporting elements of the ignition system, such as seals, mounts, or additional connectors.
Ignition coils – Generate the high voltage necessary to create a spark in petrol engines.
Ignition accessories – Add-ons that increase the functionality and efficiency of the ignition system.

What functions do ignition and glow plug systems perform?

Ignition and glow plug systems play key roles in ensuring efficient and reliable engine operation:

Engine starting – These systems enable the vehicle to start, regardless of weather conditions.
Performance improvement – Precise ignition or preheating of the mixture contributes to better performance and reduced fuel consumption.
Reduced exhaust emissions – Efficient ignition and glow plug systems limit the emission of harmful substances, improving the vehicle's environmental friendliness.
Support for modern systems – They work with other electronic vehicle systems, ensuring their effective operation.

Construction and purpose of ignition and glow plug systems

Ignition and glow plug systems are a set of components responsible for initiating and stabilizing the combustion process in the engine chamber. In a petrol engine, they primarily include spark plugs, coils, leads, or control modules, while in a diesel engine, glow plugs and their power supply elements play an important role. These components are mounted directly at the cylinder head, within the engine bay, and their selection is usually based on the OEM number, connector type, and engine unit version.

Comparison of ignition and glow plug system element types

Element type	Main function	Mounting location	What to check when selecting
Spark plug	Generating an ignition spark in a petrol engine	Engine cylinder head	OEM number, thread type, reach, unit compatibility
Glow plug	Preheating the combustion chamber in a diesel engine	Engine cylinder head	OEM number, control voltage depending on version, tip type
Ignition coil	Increasing the voltage required to create a spark	On the plug or near the engine, depending on design	Plug type, number of pins, engine version, mounting method
Ignition lead or coil connector	Energy and signal transmission to the actuator	Between the coil, module, and plug	Length, socket layout, insulation, engine equipment compatibility

Selecting parts according to engine version and equipment

The ignition system is used to generate a spark at the right moment of the work cycle, and the glow plug system is used to facilitate starting and improve cold combustion in diesel units. When choosing, it is worth comparing the OEM number, engine code, connector type, and the presence of an additional control module. If you are looking for a component such as an ignition coil, you must check the mounting method, number of pins, and compatibility with the wiring harness from the Automotive electrical systems category.

Why is it worth taking care of ignition and glow plug systems?

Well-maintained ignition and glow plug systems are crucial for vehicle reliability and safety. Typical problems include:

Spark plug wear – Can lead to starting problems and uneven engine operation.
Ignition coil failure – Can cause a lack of spark and difficulty starting the engine.
Contamination of leads and connectors – Deposits can disrupt conductivity and affect system efficiency.
Distributor problems – Improper voltage distribution can cause uneven engine operation. If replacement is necessary, choose used car parts that will ensure durability and reliability.

The importance of modules and cooperating elements

An ignition module is a control element that manages the moment of pulse transmission to the coil or other actuator component. Its task is to synchronize system operation with signals from engine sensors, which is why you must pay attention to the OEM number, plug type, and compatibility with the car's software when replacing it. When completing a repair for a specific model, e.g., BMW E90, it is also good to verify the connection with equipment from the Engines and parts and Intake and fuel system categories.

How to choose the right parts for ignition and glow plug systems?

Matching the vehicle model – At Global Parts, you will find used ignition and glow plug system parts perfectly matched to models such as BMW, Audi, Mercedes, Volkswagen, Mini and others.
Technical condition – Used parts should be free from mechanical damage, corrosion, and excessive wear.
Compatibility with vehicle systems – Ensure that the elements work with your vehicle's electrical and mechanical system.
Material durability – Choose components made of materials resistant to high temperatures and loads.

Practical tips for installation and diagnostics

An ignition lead refers to the element connecting the high-voltage source to the plug or coil, and its condition affects engine stability and the absence of arcing. During installation, it is worth checking whether the insulation shows signs of overheating, whether the connectors are loose, and whether the seating points correspond to the engine version. When choosing an element such as ignition leads, it is important to compare the length, terminals, and routing relative to equipment from the V-belts, ribbed belts and parts category. Supplementing your knowledge about how electronics work with equipment can also be found in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using dismantled parts?.

How to take care of ignition and glow plug systems?

Regular inspections – Check the condition of plugs, leads, and coils during routine technical inspections.
Cleaning and maintenance – Remove contaminants from leads and connectors to ensure their proper conductivity.
Repair or replacement on time – In case of damage, choose car parts that will quickly restore full system functionality.

FAQ

Question	Answer
What is the construction and purpose of ignition and glow plug systems?	Ignition and glow plug systems are sets of components responsible for initiating the combustion process in the engine. In petrol versions, they usually include plugs, coils, leads, or control modules, and in diesels, glow plugs, power leads, and control elements. Their parts are mounted in the engine bay, mainly at the cylinder head and engine unit equipment.
What are ignition and glow plug systems used for?	Ignition and glow plug systems are used to ensure proper starting and stable engine operation in various conditions. The ignition system initiates a spark in a petrol engine, and the glow plug system preheats the combustion chamber in a diesel before starting and sometimes after starting as well. Their efficiency affects the smoothness of operation, exhaust emissions, and the ease of starting the unit.
What is the construction and function of an ignition module?	An ignition module is an electronic element controlling the transmission of a pulse to the coil or other ignition system parts. It acts as an intermediary between the control signal and the creation of a spark, which is why it must be compatible with the installation and engine type. When selecting, it is worth checking the OEM number, plug type, and how it works with engine sensors.
How to select a part for a specific engine version?	It is safest to compare the OEM number, engine unit code, connector type, and mounting location. In many cars, the same model generation could have been equipped with different coils, plugs, or modules, which is why it is also worth checking the VIN and equipment version.
What symptoms may indicate a problem with the ignition or glow plug system?	Typical symptoms include starting difficulties, uneven engine operation, misfiring, power loss, or longer cranking of the starter during a cold start. In practice, it is also worth assessing the condition of leads, connectors, plugs, and any signs of overheating at the connectors.
What mounting elements should be paid attention to before purchase?	It is worth checking the number of pins, plug type, mounting layout, and lead length if the element has them. Covers, seals, position in the engine bay, and compatibility with pre-facelift or post-facelift versions are also important if the manufacturer used different equipment variants.

Summary: ignition and glow plug systems at the Global Parts automotive store

Ignition and glow plug systems are basic elements affecting engine efficiency, environmental friendliness, and reliability. By taking care of their technical condition, you can improve vehicle performance, reduce exhaust emissions, and ensure a smooth ride. In the Global Parts offer, you will find parts matched to many car models from brands such as BMW, Audi, Volkswagen, Mercedes, Mini and others, taking into account OEM numbers, engine versions, and equipment. We invite you to contact us – we are here to help you! For more information and interesting facts, we also invite you to our automotive blog.

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