A/T - No Or Delayed Engagement in 'D' or 'R'/DTC's Set

37 No drive or delayed drive in "D" OR "R" (DTC P1743/18151 may be stored in TCM)

38 11 06

2013280/4

April 18, 2011.

Supersedes Technical Service Bulletin Group 38 number 08 - 09 dated November 18, 2008 for reasons listed below.





AFFECTED VEHICLES





CONDITION

No drive, or delayed drive when either D or R is selected. DTC P1743/18151 may be logged in TCM fault memory.

The vehicle does not start moving without accelerating. When accelerating, an increased engine speed is necessary to move the vehicle. In some cases there is no drive.

TECHNICAL BACKGROUND

Some damaged seals installed in production. The damaged seals may leak after a short operating period (less than 13,000 miles), causing a loss of transmission oil pressure. This condition will not result in unintentional vehicle movement.

Affected vehicles: Vehicles with Multitronic transmissions produced between May 2005 and May 2006.

PRODUCTION SOLUTION

Improved production.

SERVICE

Tip: 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.

^ If fault P1743/18151 (clutch slip monitoring signal too large) is stored in the transmission fault memory, read MVB 44/1 and 45/1. If MVB 44/1 is 1000 mA and MVB 45/1 is above 12 bar, there is a problem with the axial seals. If MVB 45/1 is below 12 bar, this indicates a hydraulic problem. (See below for further analysis.)

^ If no fault is logged, proceed as follows: With ATF temperature over 90°C (MVB 10 position 3), perform an adaptation drive. (See Guided Fault Finding for adaptation drive procedure.) Assess the MVB as follows:





A. If the complaint occurs in D and MVB10/1 is above 380 mA replace only the 4 axial seals (01J301547F, as shown in Figure 1, A) at the valve body.





B. If the complaint occurs in R replace all 4 axial seals (01J301547F, as shown in Figure 1, A) at the valve body, and the axial seal in the input shaft area (01J301547F, as shown in Figure 2.)

Refer to Repair Manual Group 37 and Group 38 for repair procedures.

If the conditions/measured values listed above do not apply, contact the Technical Assistance Center.





WARRANTY





REQUIRED PARTS AND TOOLS

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.