DSG/A/T - Harsh Reproducible Shift Concerns, No DTC's

37 Customer may report harsh shift concerns. No faults stored and concern is reproducible.

37 12 62

2030007/3

August 30, 2012.

Supersedes Technical Service Bulletin Group 37 number 12 - 58 dated July 27, 2012 for reasons listed below.





Affected Vehicles





Condition
Customer may report harsh shift concerns. No faults stored and concern is reproducible.

Technical Background
Vehicle may have harsh gearshifts but customer is unable to determine the shift point because of no gear indicator in the cluster. Gathering information before calling TAC will reduce call backs saving the technician time. Information is needed to identify shift quality concerns before vehicle has been disturbed.

Production Solution
Not applicable.

Service

1. If possible someone from dealership staff goes for a ride with customer to determine if the concern can be duplicated. They then note the conditions in detail when the concern occurs. Important conditions to note: vehicle speed, ambient temperature, vehicle engine temperature, upshift or downshift, coasting or braking, panic stop or normal stop, uphill or downhill.

2. Transmission oil level/condition checked and corrected if needed. Picture of the fluid should be taken. GFF scan and no faults present.





Tip: Figure 1 is a good example of a fluid sample, 1 inch or so of fluid in the white cup held on an angle to show depth and color.

3. Technician places the cluster into single gear mode or connects scan tool to watch gear indication MVB. Technician then drives the vehicle again with person that can duplicate the concern and the shift point is then determined and verified. Place cluster into single gear mode as follows: 02 Transmission >> 012 Adaptation >> Single Gear Display = change parameter >> D on/S on >> arrow forward >> Exit.

Note:
This setting must be changed back before releasing the vehicle back to the customer.

4. At this time a TAC ticket is created. GFF should be attached along with complete details of conditions and gear changes. Clutch adaptations should be recorded and attached also if applicable. Pictures of the oil condition should be attached.

5. TAC will then make determination of next steps.





Warranty

Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.