03.11.23, 08:48

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Technical information
TI No.: 83.70U23243B

Distribution list: D

Distribution date: 24.10.2023
Valid until: 31.12.2025
The point of contact is the Daimler Buses after-sales service in each country
Model:

MODEL DESIGNATION (BM):

TITLE:

S 531 DT; S 515 HDH; S 516 HDH; S 517 HDH; S 511 HD; S 515 HD; S 516 HD/2; S 516 HD/3; S 517 HD; S 519 HD; Tourismo;
Tourismo RL; Tourismo M/2; Tourismo M/2 RL; Tourismo M/3; Tourismo M/3 RL; Tourismo L; Tourismo L RL; Travego 15 SHD;
Travego 16 SHD; Intouro K; Intouro; Intouro M; Intouro L; Tourrider Business; Tourrider Premium; Citaro; Citaro Ü; Citaro G;
Conecto; Citaro K; Citaro LE; Citaro LE Ü; OC500 RF 1939/1943/1946; OC500 RF 2543/2546; OC500 LE 1930/1936
410010; 410121; 410131; 410141; 410201; 410210; 410211; 410231; 410241; 410250; 410251; 410261; 410540; 410545; 410550;
410555; 410560; 410565; 410570; 410575; 410580; 410585; 410700; 410710; 410730; 410750; 410840; 410850; 628035; 628036;
628039; 628056; 628235; 628236; 628331; 628405; 628505; 628515; 628525; 634406; 634408; 634426
Commissioning the “Thermo CAN Gateway” auxiliary heating diagnostics interface

Replaces: 83.70U23243A
Reason:
TI expanded to include vehicle variants in which the retrofitting of the gateway is additionally required and, where applicable, it is necessary to replace the electronics unit of the
auxiliary heating unit with a new one.
COMPLAINT
The auxiliary heating unit is not capable of undergoing diagnostics.
CAUSE
The “Thermo CAN Gateway” diagnostics interface was not programmed.
REMEDY
Version 1: Update the flashware of the HVAC (and MUX/EAM if necessary)
Version 2: Update the flashware of the HVAC (and MUX/EAM if necessary) + retrofit gateway
Version 3: Update the flashware of the HVAC (and MUX/EAM if necessary) + retrofit gateway + replace auxiliary heating unit electronics unit with a new one
MEASURE TYPE
The scope of the work is carried out as part of a Customer Service measure (KDM).
WARNING NOTES
Caution: Before work scope version 1 is carried out, it is essential to check that the vehicle is equipped with Thermo 300 (identification plate) and that the CAN control unit is
fitted to the black bracket for the auxiliary heating unit and plugged in (6-pin connector). If not, this TI cannot be carried out.
Gateway in B2E (MUX) vehicles should be the 500 kB version: Item number A 001 446 94 29 / Valeo no.: 11146827
Gateway in B2E+ (with ASAM and EAM) vehicles should be the 125 kB version: Item number A 001 446 93 29 / Valeo no.: 11146829
INFORMATION
For the vehicle-specific scope of work and replacement parts, please refer to the attached list “Determining scope of work and required replacement part kits” in advance.
DEFECT PART HANDLING
The GALA (warranty parts processing) stipulations are binding. Workshops without GALA should scrap the defect parts immediately after the repair.
OPERATION TEXTS
Operation no.
Operation text
Working time/h
Comment
12-1804
Retrofit gateway for auxiliary heating
0.4
12-1805
Replace electronics unit of auxiliary heating with a new one
0.5
12-1781
Program and parameterise heating/ventilation/air-conditioning control 0.9
unit (HVAC)
12-1782
Program MUX/EAM control unit (HVAC programmed)
0.2
The times apply for work at an hourly rate.
DEFECT NUMBER
Defect no.: Designation
8390076
CODEWORD
8370U23243
INTRODUCTION OF MODIFICATIONS INTO SERIES PRODUCTION
06/2023
WARRANTY AND GOODWILL SETTLEMENTS
Field measure type KDM (Customer Service measure): 100 % of costs will be accepted.
DBMCC
DBMCC-O
pp.
pp.
Markus Fischer
Barbara Hatziiosifidou
Attachments
● →: Determining scope of work and required replacement part kits

Operation instructions
1. Version 1: Update the flashware of the HVAC (and MUX/EAM if necessary) (after visual inspection of heating (Thermo 300) and gateway connection where applicable)
2. Version 2: Update the flashware of the HVAC (and MUX/EAM if necessary) + retrofit gateway
3. Version 3: Update the flashware of the HVAC (and MUX/EAM if necessary) + retrofit gateway + replace auxiliary heating unit electronics unit with a new one
This document may contain confidential information. Distribution
For information only. Subject to ongoing technical development. Not
outside the production plant's distribution list is not permitted.
subject to the amendment service.

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