Retrofit, lumbar support front BMW 5' E39 (528i) [Vietnam]

Can be retrofitted. The following parts can be seen in EPC: ***** ***** When retrofitting electr. components: ***** See wiring scheme, for additional parts and wiring. For vehicles with basic module low always use basic module high. ***** ***** ***** ***** For this retrofit there are no installation instructions. ***** To be installed by skilled personnel only, best by a BMW partner. BMW is unable to accept any responsibility for operating failures and damages resulting from incorrect installation. ***** *****