A/T - Vehicle Will Not Move in Any Gear

38 07 04

May 30, 2007

2014155/1





Models

Vehicle Will Not Move In Any Gear

Condition

Vehicle will not move in any gear.

Technical Background

ATF pump border bushing may fail and cause a loss of oil pressure. The ATF pump is incorporated in the valve body. The pump is not a serviceable part.

Production Solution

Improved ATF pump incorporated in the valve body from January 2004 vehicle production.

Service

It is not necessary to receive an authorization number from the Technical Assistance Center for the repair described in this bulletin.

Attach VAS scan tool printouts to the repair order. Warranty requested documents received without VAS scan tool printouts will be denied payment.

1. Run the engine at Idle. Set the parking brake and place the transmission selector lever in drive (D). Do not press the brake pedal once drive is engaged. Read and print MVB Group 15. If display field 3 reads 0 (zero) or the difference between MVB 15/3 (Actual pressure) and 15/4 (Nominal pressure) is greater than 2 bar, proceed to line 3.

2. If the difference between MVB 15/3 and 15/4 is less than 2 bar, contact the Technical Assistance Center for repair authorization.





3. If ATF contains metal particles larger than 1mm (Figure 1), replace the transmission and the ATF pressure filter according to the Repair Manual.








4. If no metal particles or only slightly shimmering particles are found in the ATF (Figure 2), remove the valve body and inspect the oil pump drive gear on the end of the shaft protruding from the valve body (Figure 3).

5. If the gear is chipped or damaged, replace the transmission.

6. If the gear is not damaged, replace the valve body according to the Repair Manual.





Warranty





Required Parts and Tools

Additional Information

The following repair procedures will be necessary to complete this procedure:

^ Change ATF: Group 37, Automatic Transmission Controls, Housing in the Repair Manual

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.