Tire pressure control (RDC) — ctrl unit

For vehicles with 

Tire pressure display S2VBA Yes

Additionally required parts: 

Screw-on valve RDC 

In contrast with the EPC instructions 

The electronic wheel module 6 856 227 

(orange) can be installed on retrofitted 

Combined wheel and tire sets. For 

Replacement 

Purposes an identical electronic wheel 

Module 

With the previous part's configuration 

Is to be 

Used. 

 

6 856 227 and 6 798 872 not to be 

Installed together