Tuesday, June 16, 2020

Technical Service Bulletin # Mercedes Benz Truck GL 550 S-27_00-120A Date: 110429

Technical Service Bulletin # Mercedes Benz Truck GL 550 S-27_00-120A Date: 110429

A/T - Diag. Verification For Valve Body/Conductor Plate

Date: April 29, 2011

Order No.: S-B-27.00/120a

Supersedes: S-B-27.00/120

Group: 27

Revision History

Revision Date Purpose

a 4/29/11 Clarification on Title and Parts order

processing process

- 4/8/11 Initial issue

SUBJECT: All Models Equipped with 722.9 NAG2 (7G-Tronic) Transmission

All Warrantable Model Years

Diagnostic Verification for Valve Body/Conductor Plate Replacement Mercedes-Benz USA, LLC will begin Diagnostic Verification for 722.9

NAG2 Transmission Valve Body/Conductor Plate replacements starting on Monday, April 18, 2011. MBUSA has posted a Diagnostic Verification

form for transmission replacements which can be found on: NetStar -> Service -> STAR -> TekInfo -> Diagnostic Verification Proj. -> NAG2 Valve

Body/Conductor Plate

Under this program, replacement of the Model Year 2004 through present Model Year 722.9 (NAG2) Transmission Valve Body/Conductor Plate

will require verification that a replacement is necessary prior to replacement in accordance with the program terms summarized below.

^ The technician shall conduct an accurate assessment and complete documentation of the problem by submitting a Diagnostioc verification request

through NetStar -> Service -> STAR TekInfo -> Diagnostic Verification Proj. -> NAG2 Valve Body/Conductor Plate.

^ Upon completion of the form, click on the "submit" button to send the form to Dealer Technical Support(DTS). A Diagnostic Verification case

number will be displayed upon submission. Supporting documentation (e.g. Short Test, Control Unit Log, Freeze Frame Data & pictures of

damaged parts where appropriate) must then be sent to diag-ver-valvebody@mbusa.com with the case number in the subject line as a reference.

Once the form and supporting documentation are received, the case will be reviewed. After review, you will be notified via e-mail (to the address

listed on the form) if the diagnosis is verified. Warranty Services Group will also be updated when the diagnosis is verified.

2011 Mercedes Benz Truck GL 550 (164.886) V8-5.5L (273.963) Page 121

^ Once a diagnosis is verified, the replacement part order will be processed automatically via Paragon Replacement can then be performed.

Warranty claim can then be submitted. When the claimed part is submitted, the claims processing system will validate that verification has been

obtained. Failure to submit the required paperwork with the claim will result in automatic debiting. Returning a claimed part without a Diagnostic

Verification will result in automatic debiting of the claim.

^ If the QEC inspection does not confirm the diagnosis as stated in the Diagnostic Verification case, the warranty claim is subject to debit.

Please refer to the Electronic Parts Catalog (EPC) to specify parts accordingly and refer to Paragon to check availability of the specified parts. If you

have any questions with specification or availability, contact the PAC.