Audi A7 S7 4G 4.0 TFSI Petrol Engine Ignition Coil 079905110H

Audi A7 S7 4G 4.0 TFSI Petrol Engine Ignition Coil is an original ignition system component designed for 4.0 TFSI petrol engines in Audi A7 and S7 4G generation models. Thanks to its OEM-compliant design, it ensures stable spark generation, which translates into smooth engine operation, better throttle response, and proper performance under various loads. This is a solution for users who expect precise ignition system operation without experimenting with aftermarket replacements.

Specifications and technical data

• SKU: 079905110H
• Mark: Audi
• Condition: Used
• OEM Part Number: 079905110H
• Substitutable numbers: 079905110H, 079 905 110 H
• Fuel type: Petrol
• Category: Ignition Coils

Purpose and role in the ignition system

The presented coil belongs to the Ignition coils category and is dedicated to the 4.0 TFSI petrol engine in the Audi A7 / S7 4G. Its task is to convert low voltage from the vehicle's electrical system into the high voltage necessary for the spark to jump on the spark plug. A properly functioning coil reduces misfires, facilitates cold starts, and supports stable engine operation across the entire rev range.

Selecting a coil that complies with factory specifications is particularly important in high-performance turbocharged units, such as the 4.0 TFSI, where the ignition system operates under increased thermal and electrical stress. Using an OEM component helps maintain engine performance parameters at the level intended by the manufacturer.

Benefits of using an original Audi coil

Using this coil in an Audi A7 or S7 4G with a 4.0 TFSI petrol engine provides a number of practical operational benefits:

• increased reliability of the air-fuel mixture ignition under high engine load,
• reduction of jerking and uneven engine operation during acceleration,
• improved idle stability,
• reduced risk of damage to catalytic converters and lambda sensors due to misfires,
• maintenance of combustion parameters in accordance with manufacturer specifications.

For users who expect predictable vehicle behavior and want to avoid issues with ignition fault diagnostics, choosing an original Audi coil is a safe and technically sound solution.

Technical characteristics and compatibility

The coil has been designed to work with a petrol-powered engine, in accordance with the factory configuration of the 4.0 TFSI engine. Its design and electrical parameters are adapted to the engine control unit used in the Audi A7 / S7 4G, which facilitates diagnostics and ensures proper cooperation with the factory ECU software.

The item comes from dismantling, which means it is a used part, but still intended for further use after proper installation. Replacing the coil is a standard service operation in the ignition system and in most cases does not require any modifications to the wiring or additional adaptations in the control unit.

Application in service practice

This ignition coil will work well both for a standard replacement of a single component and for a preventive replacement of a full set of coils in a 4.0 TFSI engine. It is particularly useful in situations where symptoms occur such as:

• misfires under load,
• uneven engine operation at idle,
• loss of power or momentary "flat spots" during acceleration,
• ignition-related fault codes stored in the control unit memory.

Selecting a part that complies with factory specifications reduces the risk of these symptoms recurring after repair and facilitates further diagnostics of potential faults in the fuel or engine control systems.

Expanding the Audi ignition system

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other components from the same group, such as additional coils, ignition wiring elements, or mounting hardware, check out the available parts in the Audi ignition coils category.

Technical knowledge support

In the case of more advanced work on electronics and engine control, it is worth using reliable sources of information. For example, when working with control modules and multimedia systems, an article describing the use of dismantled parts in modern cars can be helpful, such as a guide on servicing iDrive systems and electronic modules in BMW. Although it concerns a different brand, it shows good practices for selecting and installing used electronic components, which can also be applied to working with the ignition system in an Audi.