00-006

Freightliner Courtesy Engineering Policy
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional

Argosy COE
Cargo
Columbia
> 122SD and Coronado
> Business Class M2
> Cascadia

> 108SD/114SD
> New Cascadia
Saf-T-Liner C2
Recreational Vehicle
Shuttle Bus
Walk-In Van

Freightliner
Service Bulletin

Description of Revisions: This bulletin replaces the version dated
05/18/2017. Instructions for using the on-line form have been
added.

General Information
Daimler Trucks North America has traditionally provided engineering support to dealers for the purpose of
modifying vehicles to change their original specifications. This service is categorized as "courtesy engineering,"
and is subject to formal controls and definitions.
Courtesy engineering is defined as technical design information provided to dealers in order to change the
configuration of a vehicle from its original specifications, or to add vehicle options that were not originally
ordered but were available from the factory at the time of manufacture. Common examples: changing gross axle
weight ratings, adding air and electric trailer towing provisions, suspension changes, brake modifications,
changing a wheelbase, issuing compliance/official letters, programming changes, and installing air fairings.
Custom engineering is not offered as courtesy engineering.
Charges for courtesy engineering are $200 per hour, with a minimum charge of 1 hour, unless otherwise stated.
Courtesy engineering technical requests will result in a thorough, serial-specific parts list that will contain the
part numbers with quantities as well as installation diagrams, wiring schematics, and drilling patterns (if
applicable). Bills of Material will also be listed for reference to be used in PartsPro if needed.
Dealers who wish to use this service can access the on-line form located on DTNA connect:
1. Under the DTNA Connect Resources find the heading Daimler Trucks Technical Support
2. Expand Daimler Trucks Technical Support and select DTTS Ticket (Search/Update/Create)
3. Select the button in the center of the page labeled "Create New Ticket"
4. Once the form opens, there are two drop downs that will need to be selected
• For the "Technical Support Needed", select Chassis FTL, STL,WST.
• For the "Form Type", select one of the four options depending on your needs, Allison Reprogramming,
NSM Letter, CG Letter or Technical modification.
All forms have two pages. Page one is the technician and vehicle information, and page two documents all of
the specific requirements related to the request. Once the form is completed, you will be emailed validation that
your request has been submitted. The status of the request can be monitored using the DTTS dashboard. Once
the design information is complete, you will receive an email with all of the related content. The dealership open
parts account will be charged. Billing usually occurs at the end of the month.

NOTE: The Technical Modifications group will not issue parts lists or instructions directing a 3rd party
to add or remove an optional safety system that uses active braking.
NOTE: If the vehicle is modified, a global annotation should be added in PartsPro to reflect the
vehicle modification and the parts that were installed. See Parts Technical Bulletin 00-009 for more
information on adding a global annotation in PartsPro.

Flat Fee Procedures
The following procedures will be charged a flat fee rather than the above mentioned method.
• Allison transmission speed change requests will be charged $75 to cover the engineering time involved in
making the determination. Please provide a purchase order when submitting a request. The purchase
order will be charged regardless of approval, conditional approval, or denial.

Freightliner Service Bulletin, 12/5/2018

Page 1

00-006

Freightliner Courtesy Engineering Policy

Freightliner
Service Bulletin

FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional

Argosy COE
Cargo
Columbia
> 122SD and Coronado
> Business Class M2
> Cascadia

> 108SD/114SD
> New Cascadia
Saf-T-Liner C2
Recreational Vehicle
Shuttle Bus
Walk-In Van

• Loaded truck body center of gravity (CG) recalculations for MVSS-105/121 brake system compliance will
be charged $75 per truck order to cover the engineering time to perform these calculations and prepare
documentation. Please provide a purchase order when submitting a request.
• Requests where only a serial number with the requested option is desired will be charged a flat fee of
$50. Not all requests are subject to this option. Engineering support is not offered with this option. It is the
responsibility of the requestor to look up the applicable parts from the reference vehicle and ensure they
are correct.
• Simple requests will be charged a flat fee of $50 Not all requests are subject to this option. Engineering
support is not offered with this option. Examples of simple modifications: seat changes, pre-EPA07
exhaust modifications, and changing floormats.

Estimates for Time or Fee
See Table 1 for typical time estimates.
Typical Times for Common Requests
Common Request
Driver Controlled Differential Lock and Gear ratio changes
GAWR Changes
Power Mirrors / Windows
Trailer Tow Packages (Air and Electric Provisions)

Hours
(Estimated)
1-2
1-4
1
4

Table 1, Typical Times for Common Requests

See Table 2 for common requests that typically have flat fees.
Typical Flat Fees for Common Requests
Common Request
Center of Gravity Amendment Letters
National Safety Mark (NSM) Letters (Canada)
Transmission Reprogramming

Flat Fee
$75
$100
$75

Table 2, Typical Flat Fees for Common Requests

Information Required for Requests
Requests lacking clarity or missing information will not be processed until ample information is supplied. The
following is the minimum information needed by type of request.
For Allison Transmission Reprogram Requests, please include the following information:
• Last six digits of the VIN(s)
• Dealer Code
• Purchase Order (P.O.)
• Whether the vehicle’s wheelbase, rear tires size, or rear axle ratio have been modified
• Are there any split shaft devices installed in the main driveline (pump, transfer case, etc.)
For Center of Gravity Amendment Letter Requests, please include the following information:

Page 2

Freightliner Service Bulletin, 12/5/2018

Freightliner Courtesy Engineering Policy
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional

Argosy COE
Cargo
Columbia
> 122SD and Coronado
> Business Class M2
> Cascadia

> 108SD/114SD
> New Cascadia
Saf-T-Liner C2
Recreational Vehicle
Shuttle Bus
Walk-In Van

00-006
Freightliner
Service Bulletin

• Last six digits of the VIN(s)
• Dealer Code
• Purchase Order (P.O.)
• The height to be shown on the letter
• Who the letter should be addressed to (name, company, mailing address)
For National Safety Mark (NSM) Requests, please include the following information:
• Last six digits of the VIN(s)
• Dealer Code
• Purchase Order (P.O.)
• Who the letter should be addressed to (name and company)
• The modification being performed
• Whether a parts list is needed or a letter only
For Parameter Requests, please include the following information:
• Last six digits of the VIN(s)
• Dealer Code
• Purchase Order (P.O.)
• Who (name, email, phone number) is able to answer questions from engineering if any arise
• Whether there is a similar parameter or another serial number that is similar/close to the desired
operation
• How the new parameter should work (please note key switch position, park brake position, vehicle speed,
etc. for any interlocks or conditions that need to be satisfied)
For General Technical Requests, please include the following information:
• Last six digits of the VIN(s)
• Dealer Code
• Purchase Order (P.O.)
• The modification being performed (if possible, include the desired data code(s) or a similar vehicle with
the desired option)
• Additional information regarding why the modification is being performed can be helpful. Although not
required, it sometimes allows for an easier and lower cost solution to be identified if available. For
example:
• A request for "trailer tow provisions" will contain air and electric provisions in the parts list. However,
if the request explains that only the electrical portion is required, the amount of engineering time
spent on the request is considerably reduced, making the response faster, and minimizing cost.
• A request that says "need a pintle hook" will be delayed because more information is needed. A
similar, more detailed request like "need a pintle hook capable of towing 3500lb (max) dollies
around the yard," will receive a faster response.

Freightliner Service Bulletin, 12/5/2018

Page 3