Alright folks. Got a 2007 a4 2.0tdi, engine code BRD r4. Got Dtc 008194 (particulate trap bank1) p2002 - 006 efficiency below threshold. Have followed Ross tech wiki to manually regenerate car. Soot was up at 130ish and managed to get it to 20%. Can't get it any lower. Could anyone tell me how to get it to force regen through vcds? I don't have the security/access key for it. Think that's all that's holding me back. Thanks in advance.