A6 Quattro Sedan V8-4.2L (BVJ) (2007)
Neutral Safety Switch: Customer Interest
A/T - Can't Remove Key From Ign/Can't Lock Vehicle
37 Ignition key cannot be removed when transmission is in park or cannot lock vehicle
37 09 16
December 2, 2009
^ The ignition key cannot be removed from the switch, despite selecting shift position P.
^ Or, if equipped with advanced key system, the vehicle cannot be locked by remote control after exiting.
^ DTC 00230 (Switch for gearbox position P-F305, disruption/short circuit to positive/ground, sporadic) may be logged in the 05-vehicle authorization
The selector lever adjustment P sporadically is not recognized. Therefore, the ignition key cannot be removed from the switch or the locking of the
vehicle is prevented.
Switch for gearbox position P (F305) changed in production week 16/08, Chassis No.: 4F_8N138012.
Try to reproduce the customer complaint so that it can be clearly assigned to this TSB.
The following repair must only be carried out if all criteria match exactly. Otherwise this solution won't work, and repeat repairs may be necessary. In
such a case, we may reject the warranty claim and debit the parts.
1. Check for other DTCs that may be logged in other control units, such as ABS, vehicle authorization system, engine, gearbox, etc. Address any DTCs
according to Guided Fault Finding.
Lubricants and oils can contaminate the micro switches (F305) and lead to long-term damage. Do not apply lubricants such as silicon oil to the gearshift
housing, even if the gearshift housing appears to be stiff.
2. If this complaint occurs on vehicles with Multitronic transmission 01J (CVT) in combination with (gearbox) DTC P0706 (Transm. Range Sensor Circ.
^ If the vehicle is model year 2006, replace the Transmission Control Module.
^ If the vehicle is model year 2007 or newer, open a TAC ticket with an attachment of the DTCs. Reference this Technical Service Bulletin and contact
the Technical Assistance Center.
3. If no other DTCs are logged, or all other DTCs are addressed, proceed as follows:
Case A - Vehicles produced between VIN 4F_6N116845 and VIN 4F_ 8N138012
a. Read the DTC memory. If DTC is logged in Access/Start Control System group 05, follow Guided Fault Finding.