All Euro5 Vitos will be upgraded, this service measure is taking far longer to carry out than had originally been predicted.
Be prepared for your cab being in the workshop for maybe a couple of days. As technicians become more experienced with carrying out the upgrade, these times will reduce.
If you need rear steer repairs before test contact your chosen participating dealership at least ONE MONTH in advance of annual TFL test in order to give them time to book you in. Turning up a few days before your test, expecting to be seen will mean that you will miss your booked test date. MB Garages are very busy with repair work.