ELF electronic suspension control KNORR-BREMSE no. 0 504 004 109, SCANIA no. 489555, KNORR no. 0504004109, type L94|B4x2, front ECU, right-side kneeling, 2003

Product description: ELF KNORR-BREMSE front electronic suspension control unit – SCANIA L94 4x2 (0504004109 / 489555)

Ensure optimum stability, precise levelling and full functionality of the pneumatic system in your vehicle. We offer an original, used control module (ECU) for the central front suspension control system ELF (Elektronische Luftfederung) from the renowned KNORR-BREMSE brand. This component is intended for SCANIA city and suburban buses, particularly the popular L94B4x2 chassis model from 2003.

The computer controls the vehicle’s front axle and supports key urban transport functions, including the low-floor right-side kneeling system, which facilitates passenger boarding and alighting at stops. By choosing this component on peterbus.pl, you can effectively eliminate levelling system communication errors and problems with the correct chassis geometry.

Technical specifications and catalogue numbers:

• Electronic component manufacturer: KNORR-BREMSE

• KNORR catalogue number: 0 504 004 109 (0504004109)

• SCANIA OEM part number: 489555 (interchangeable with 483114)

• Chassis type / configuration: Scania L94B4x2 (L94 / 4-series)

• Vehicle model year: approx. 2003

• System location and function: Front control unit (front ECU) – front axle levelling and right-side kneeling functions

• Operating voltage: 24V

• Condition: Used, fully original OEM component

Safe shopping at peterbus.pl – Start-up Warranty and Knorr-Bremse durability

All control units and ECU modules available in our range are 100% original used parts. In vehicle electronics designed for heavy-duty urban transport, build quality is crucial. Original Knorr-Bremse computers offer optimum resistance to voltage surges, moisture and demanding road conditions, providing greater durability than unverified replacements, which often cause errors on the vehicle data bus.

We fully understand that any suspension levelling system failure disrupts route operations and generates costs. Although the control unit offered is used, we ensure complete purchase security for our customers, which is why this product is covered by a reliable start-up warranty. If any problems are found with the correct operation of the right-side kneeling function or with controller communication after installation, we guarantee a quick replacement with another unit or a full refund. You buy without risk.

Pre-installation guidelines

Before purchasing, please carefully compare the serial numbers and hardware configuration of the existing control unit. This module is intended for the front axle of 2003 Scania L94B4x2 buses using the Knorr system architecture marked 0504004109.

We are continually expanding the range of our peterbus.pl online store, already supplying more than 10,000 unique replacement parts for buses. We offer a wide selection of ELF/ECAS suspension computers, solenoid valve blocks, height sensors, air springs and onboard mechanical components for vehicles of brands including Scania, Bova, Setra, Mercedes, MAN and many others. Do you have any questions? Contact us – we will be happy to help.