"LIN BUS" error - despite the identical message, two different systems are used in vehicles and they require different solutions.
1. AKSE system (Older type – foil mat)
- Sensor type:
- Foil mat.
- Equipment code (Mercedes SA):
- U18.
- Component designation:
- B48.
- Example models:
- W204, W212, W176 (only with LIN communication).
- Verification:
- Possible remotely using the VIN. The VIN confirms the presence of code U18. In parts catalogs you can read the specific mat part number assigned to the vehicle. Diagnostic scan errors will show whether LIN communication is present.
2. WSS system (New type – Weight Sensing System)
- Sensor type:
- Pressure mat filled with fluid.
- Equipment code (Mercedes SA):
- U10.
- Component designation:
- N110.
- Example models:
- W205, W213, W117.
- Verification:
- The VIN only confirms the presence of code U10. The part number cannot be read from the catalog – it must be checked physically in the vehicle.
Part number location:
- Checking the WSS mat part number in the vehicle:
-
Checking the WSS mat part number in Xentry:
The Universal OCS WSS LIN Tester (SKU: 050036) is a comprehensive solution that, thanks to the latest software update, replaces two separate devices. The main advantage of the new version is the addition of support for another program and the integration of the Type 5 standard, which bridges older and newer vehicles with the LIN bus.
Benefits of the updated device:
- New program: Full support added for mat part number A 117 870 00 10.
- All in one: One OCS tester now supports both advanced WSS systems (U10) and AKSE foil mats (U18) operating in the LIN standard.
- Precise configuration: The correct operating mode is selected using switches (SW).
Program overview:
- WSS mat A 117 870 01 10
- WSS mat A 213 870 00 10
- WSS mat A 222 820 52 03
- WSS mat A 000 820 82 05
- WSS mat A 117 870 00 10 (NEW)
- Standard Type 5 program (AKSE LIN)