Refilling in Service Workshop

Refilling in the service workshop refers to the routine refill as part of the oil change procedure. This takes place at the latest after:

• 13000 mls on the E90,
• 11000 mls on the E70 or
• one year.

In this case, the system must be emptied first in order to remove older urea-water solution. This takes place via the extractor connections in the transfer line. Although a small residual quantity always remains in the reservoirs, it is negligible.