Audi Q5 8R CGLB 2.0 TDI 170HP Quattro Calculateur Moteur 03L906018MQ Auto

Audi Q5 8R CGLB 2.0 TDI 170HP Quattro Engine Control Unit 03L906018MQ Automatic is a specialized, factory module from the Electronic Control Units and Controllers group, designed to work with a diesel engine and four-wheel drive. The controller supports configurations with an automatic transmission, ensuring precise management of the engine and drivetrain's operation in everyday use.

Spécifications et données techniques

• UGS: 03L906018MQ
• Marque: Audi
• Condition: D'occasion
• Numéro de pièce OEM: 03L906018MQ
• Nombres substituables: 03L906018MQ, 03L 906 018 MQ, 03L906018DN, 03L 906 018 DN, 0 281 017 838, 0281017838
• Type de carburant: Gas-oil
• Type de boîte de vitesses: Boîte de Vitesse Automatique
• Type de pièce: Boîtier moteur (ECU)
• Catégorie: Allumage CDI / ECU

Purpose and Technical Characteristics

The presented controller is dedicated to Audi powertrains with diesel engines, working with Quattro drive and an automatic gearbox. The unit's software and configuration are prepared to handle specific engine operating parameters, torque characteristics, and gear shifting strategies in the automatic transmission.

As an element from the Electronic Control Units and Controllers category, the module is responsible for:

• controlling fuel injection and injection timing in diesel engines,
• managing the operation of engine accessories under various load conditions,
• cooperating with safety and comfort systems,
• communicating with other controllers in the vehicle via the data bus.

Benefits of Using an Original Audi Controller

Using an original engine controller in an Audi Q5 8R with a CGLB unit and Quattro drive allows for maintaining the factory operating parameters of the powertrain. The module is designed to work with an automatic transmission, which translates to:

• stable engine operation across the entire RPM range,
• correct synchronization with gear shifting logic,
• consistency with factory diagnostic systems,
• the ability to retain original control maps and protection strategies.

Thanks to this, the vehicle maintains predictable behavior on the road, and the accelerator pedal response remains in line with the manufacturer's specifications.

Fuel Type and Automatic Transmission Compatibility

The controller is configured to work with an engine powered by diesel fuel, meaning algorithms are adapted to the characteristics of a diesel unit – including control of injection system pressure and emission reduction strategies. At the same time, the module cooperates with the automatic transmission, taking into account driving modes, drivetrain load, and traction conditions typical for the Quattro system.

This combination allows for smooth gear changes, optimized fuel consumption, and maintained driving dynamics while ensuring driving comfort.

Condition and Service Application

The item is offered as a used part, making it an attractive solution for engine control repairs in the Audi Q5 8R. It can be used for replacing a damaged module as well as in diagnostic processes where a functional controller with the correct configuration is required.

In workshop practice, such a controller is used, among other things, for:

• resolving faults related to lack of communication with the control unit,
• problems with starting or unstable operation of the diesel engine,
• diagnosing incorrect engine-automatic transmission cooperation.

Audi Electronic Control Units – Expansion and Modernization

If you are planning a comprehensive repair or modernization of the engine area in your Audi and need other parts from the same group, such as engine controllers, comfort modules, or drive management units, check the available parts in the Audi Electronic Control Units and Controllers category.

If you are interested in a broader context of electronic module operation in modern premium cars, including engine controllers, it is worth reading the guide on iDrive systems and modules in BMW vehicles – you will find practical tips on diagnostics and the use of salvaged parts there: Years of driving pleasure – how to care for iDrive systems and electronic modules in BMW 3 and 5 Series models.