dÄHLer Engine Performance Tuning - BMW G02 X4 20d xDrive

QT Parts is a Finnish online store.

Our warehouse is located in Nokia, Finland.

You can collect your order directly from us if needed. Simply select “Pickup” at checkout.

Pay securely with multiple payment methods, including invoice and installment plans through Klarna.

The delivery time for products in stock is 1-5 business days. We ship worldwide.

If the product is not in stock and it is a pre order product, the average delivery time is 5-21 business days. If the product has a longer delivery time than previously announced, we will be in touch. International orders may be subject to VAT, import duties, and customs fees upon arrival in the destination country.

Terms for product returns:

• You must return the ordered products within 14 days of receiving
• The products must be unused and without damages
• Commission fee for handling returns is 21,90€
• For product returns, the customer is in charge of the return costs. Only door to door service (Express)
• Shipping costs are not refunded

For international orders sales are final and non-refundable. Once an order is placed, it cannot be canceled or returned. By placing an order, you acknowledge and agree to these terms.

Return address: QT Parts, Vasarakatu 8B, 37150 Nokia, Finland.

Pre order / made-to-order products

If the product you have ordered is a pre order or made-to-order item, it is not subject to the 14-day right of withdrawal or return under consumer protection laws, as the product is manufactured or sourced specifically based on the customer’s individual order.

If you wish to cancel your order before receiving the product, we will refund 50% of the total order amount.

This condition applies to the following product categories:

• Suspension
• Engine Tuning
• Engine Parts
• Exhaust Systems
• Fueling
• Turbochargers/superchargers
• Drivetrain
• ECE-approved Downpipes

All of the above products are manufactured or sourced individually based on the customer’s order, and therefore cannot be returned after delivery, unless the product has a manufacturing or material defect.

In the event of such a defect, the standard liability for defects as provided by consumer protection legislation shall apply.

TUV approved, legal external ECU. Road legal product.

We offer engine performance tuning for BMW X3 X4 sDrive 18d, xDrive 20d, xDrive 25d, xDrive 30d, and M40d G01 / G02 models.

Developed in Switzerland and manufactured in Germany

The tuning works with BMW cars both before and after the 06/2020 production date, as well as the latest BMW Hybrid models. It is approved by German TÜV (EU homologation) and meets the latest emission standards.

Maximum power increase:
38 hp / 28 kW

Maximum torque increase:
80 Nm / 52 ft-lbs

Standard power:
190 hp (140 kW)
400 Nm (295 ft-lbs)

Enhanced power:
228 hp (168 kW)
480 Nm (354 ft-lbs)

The engine control module for BMW X3 X4 sDrive 18d, xDrive 20d, xDrive 25d, xDrive 30d, and M40d G01 / G02 models includes an advanced control unit designed to optimize and work with the original BMW ECU.

Thanks to dAHLer's multi-map technology, up to five channels are optimized in real-time – be it the common rail system, boost pressure, or turbo control. The tuning manages the latest generation BMW diesel engines in a multi-dimensional map where all engine-relevant parameters are perfectly adjusted.

dAHLer Engine Performance Tuning for BMW X3 X4 sDrive 18d, xDrive 20d, xDrive 25d, xDrive 30d, and M40d G01 / G02 models increases boost pressure and fuel quantity by slightly altering the rail pressure. This brings more power and torque while remaining within the safety specifications of the BMW engine.

Another advantage of dAHLer's multi-map technology is compliance with the legal emission values specified for the BMW diesel engine. As combustion is optimized across all power ranges, fuel is utilized with 100% efficiency.

This means that dAHLer engine tuning can be used without restrictions even in vehicles equipped with a particulate filter. Compliance with emission values is confirmed by a TÜV certificate.

Controlling the dAHLer Engine Performance Tuning system in BMW X3 X4 sDrive 18d, xDrive 20d, xDrive 25d, xDrive 30d, and M40d G01 / G02 models can be done via smartphone – this is one of the amazing features of the tuning module. It allows you to select a fully customizable driving mode. The module connects wirelessly via Bluetooth 4.0 to an iOS and Android device through the free dAHLer Mobile app.

This allows you to switch between 3 different power settings and update the software globally to the latest versions with more powerful maps. The additional power can also be easily switched on or off via your phone, even while driving.

The app also features an adjustable warm-up timer, allowing the driver to decide how long the engine should warm up before engaging the tuning. No separate app purchase is required.

Features:

• Works with cars before and after 06/2020 production date

• No DME removal required

• Performance adjustment via smartphone

• Quick Plug & Play installation

• Operates as smoothly as standard – this is how BMW should have come from the factory

• Compatible with all driving modes

• Fuel consumption remains unchanged during normal driving

• Works with cars equipped with a particulate filter

• Not tied to the car's VIN, can be removed without a trace and resold

• Developed in Switzerland, manufactured in Germany

• Tested on the German Autobahn

• TÜV approval (emission tests according to WLTC standards)

• Worldwide 3-year product warranty

• Disclaimer regarding vehicle manufacturer warranty and emissions liability

• Worldwide 3-year product warranty

dAHLer Competition Line does not guarantee the legality of parts for "road use" and does not assume responsibility for maintaining the manufacturer's warranty (country-dependent). In EU countries, a 1-year insurance for the engine, gearbox, and drivetrain is included (further details available upon request).