HG Motorsport ignition coils for 1.8–4.0 TFSI EA888 Gen.3/4 MQB

Technical optimisation for maximum power

HG Motorsport high-performance ignition coils

Maximum ignition energy and thermal stability for modern high-performance engines. In modern vehicles, particularly those with tuned engines, standard ignition coils quickly reach their limits. Misfires, uneven combustion and thermal overload can result. HG Motorsport high-performance ignition coils were specifically developed to overcome these challenges. They provide increased ignition energy, improved thermal stability and consistently reliable performance, even under the most demanding conditions.

Technical features of the HG Motorsport ignition coils

• Optimised primary and secondary windings: a greater number of windings and high-quality copper wire provide improved energy transfer and consistently high ignition voltage.
• Increased ignition energy (+10% compared with OE): ideal spark-plug supply throughout the complete dwell period, suitable for high-performance engines.
• Consistent energy output under high load: particularly suitable for turbocharged and supercharged engines requiring stable ignition voltage over longer periods.
• Extended service life: high-quality insulation materials and optimised windings minimise thermal loads and protect against internal short circuits.
• Thermal resistance: continuous operation up to 120°C and stable operation up to 140°C without loss of performance.
• Optimised spark formation: stable ignition at high boost pressures and with richer mixtures, significantly improving combustion efficiency.

Comparative ignition-energy data demonstrates the superior performance of the HG Motorsport ignition coils compared with standard components:

• Up to 1.5 ms: both coil types deliver comparable energy.
• From 2.0 ms: the energy of the standard ignition coils drops significantly, while the HG Motorsport ignition coils continue to deliver consistently high values.
• At 3.0 ms: the HG Motorsport ignition coils deliver almost 25% more energy, which is decisive at high engine speeds and in tuned engines.

Even at a temperature of 140°C, the ignition energy of the HG Motorsport ignition coils remains stable at 70 mJ, while OE coils have already failed or reached critical values.

Ideal applications

• High-performance engines: optimum ignition even under extreme loads.
• Motorsport and trackdays: stability and consistent energy during continuous operation.
• Daily drivers with increased power: improved efficiency and ignition stability in everyday use.
• Replacement for OEM ignition coils: greater reliability and extended service life.

Winding structure and operation

The ignition coils use an optimised primary and secondary winding structure. The primary winding generates a strong magnetic field which induces high voltage in the secondary winding when the field collapses. Thanks to the increased number of windings and improved insulation, consistent ignition energy is maintained even at high engine speeds and during load peaks.

Thermal testing and long-term results

1. Continuous thermal load

• Test set-up: continuous operation at 120°C with simulated load changes over 100 hours.
• Result: no reduction in performance and no thermal degradation of the HG Motorsport ignition coils.
• Comparison: OE ignition coils lost approximately 25% of their energy after 50 hours, followed by the first material changes.

Additional test at 140°C

• HG Motorsport: stable operation for 8 hours without failures.
• OE ignition coils: performance drop of up to 40% after 4 hours, followed by thermal failures.

Summary of laboratory data

• Maximum ignition energy: HG Motorsport 120 mJ, OE ignition coil 90 mJ.
• Continuous load at 120°C: HG Motorsport > 100 hours, OE ignition coil 50 hours.
• Operation at 140°C: HG Motorsport stable for up to 8 hours, OE ignition coil performance drop after 4 hours.
• Insulation resistance (500 V): HG Motorsport > 20 MΩ, OE ignition coil approx. 10 MΩ.

Replaces the following OEM numbers

The ignition coil replaces the following OEM numbers:

• 06H 905 110, ending letters D–L
• 06J 905 110, ending letters B–N
• 06K 905 110, ending letters C–G
• 06H905110D, 06H905110E, 06H905110F, 06H905110G, 06H905110H, 06H905110L
• 06J905110B, 06J905110C, 06J905110D, 06J905110E, 06J905110F, 06J905110G, 06J905110G, 06J905110K, 06J905110L, 06J905110N
• 06K905110C, 06K905110D, 06K905110G, 06K905110H, 06K905110K, 06K905110N
• 06L905110C, 06L905110D, 06L905110E, 06L905110F, 06L905110H, 06L905110K, 6K905110G

Suitable for: Audi A1 II (GB), Audi A3 III (8V) / IV (GY), Audi Q2 I (GA), Audi Q3 I (8U) / II (F3), Audi S3 III (8V) / IV (8Y), Audi SQ2 I (GA), Audi TT III (FV), Audi Tts II (8S) / III (FV), Cupra Ateca I (KH7), Cupra Formentor I (KM7), Cupra Leon IV (KL1), SEAT Ateca I (5FP) / I (KH7), SEAT Cupra Formentor I (KM7), SEAT Leon III (5F) / III (5F1) / IV (KL1) / IV (KL8) and 11 more.

Manufacturer’s vehicle data

• HG Hochleistungs Zündspule 1,8 – 4,0 TFSI EA888 Gen.3/4 MQB

Original product name by HG Motorsport (»z.B.« = e.g.). Please check model, year and engine of your vehicle before ordering; if in doubt, contact us and we will check for you.