2003 325CiC with 87,000 miles. As far as I know, the vanos seals were never replaced. So I got the "Stage 2 BMW DUAL VANOS O-Ring Seal Repair Kit - M54/M52tu - VCG 11129070990" for about $95 from Amazon.
These instructions were great.
http://www.beisansystems.com/procedures/vanos_procedure.htm
Noticeably better pickup!
These instructions were great.
http://www.beisansystems.com/procedures/vanos_procedure.htm
Noticeably better pickup!