SB-10054680-6867

20-72

Coronado Radiator Mounts, Update—EPA10
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional

Century Class Conventional
Argosy COE
Cargo
Columbia

Freightliner
Service Bulletin

> Coronado
Business Class M2
Cascadia
108SD/114SD

Description of Revisions: This bulletin replaces the version dated
December 2012. SRT times have been updated.

General Information
Some EPA10 compliant Coronado vehicles, manufactured from start of production to the dates listed below, with
specific combination of engine operating parameters, may have radiator failures resulting in a coolant leak due
to a crack in the coolant tube. See Fig. 1. Leaks in other places (at the end tank, header, fittings, or any place
other than the coolant tubes) do not apply for this bulletin. If leaks occur in the coolant tubes, Freightliner recommends a radiator update to an isolated engine-mounted 1700 sq in radiator. Isolated engine-mounted radiators were production installed beginning in January, 2012. This procedure is to replace a standard enginemounted 1700 sq in radiator with an isolated engine-mounted 1700 sq in radiator.

05/31/2005

f500383

Fig. 1, Crack in Coolant Tube

IMPORTANT: The required parts for this procedure will vary depending on the type of engine
installed. See Table 1 under "Parts" for a list of required parts for the vehicle being serviced.

Radiator Mount Replacement
1. Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the tires.
2. Remove the hood. For instructions, see Section 88.00, Subject 100 in the Coronado Workshop Manual.
3. Remove the bumper. For instructions, refer to Group 31 of the Coronado Workshop Manual.
4. Drain the coolant from the radiator and engine block.
5. Remove the charge air cooler (CAC) plumbing at the turbocharger outlet and the CAC inlet. See Fig. 2.
6. Remove the CAC plumbing at the CAC outlet and the engine inlet. See Fig. 3.
7. Remove the surge tank. See Fig. 4. For instructions, see Section 20.00, Subject 110 of the Coronado
Workshop Manual.

Freightliner Service Bulletin, December 2013

Page 1

20-72

Coronado Radiator Mounts, Update—EPA10

Freightliner
Service Bulletin

FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional

4

> Coronado
Business Class M2
Cascadia
108SD/114SD

1

2

3

Century Class Conventional
Argosy COE
Cargo
Columbia

1
3

2
6
5

6

2

10/16/2012

1.
2.
3.
4.

4

f200767

CAC Inlet
Hose
Tube
Hose

5. Turbocharger Inlet
Pipe
6. Clamp

Fig. 2, CAC Plumbing, Turbocharger-to-CAC

10/16/2012

f200768

1. CAC Outlet
2. Clamp

3. Hose
4. Engine Inlet

Fig. 3, CAC Plumbing, CAC-to-Engine Inlet

8. Remove the upper radiator hose. See Fig. 5.
1

2

1

2
3

4

3
4

10/16/2012

f200770

1. Surge Tank
2. P-Clamp

3. Clamp
4. Vent Line

Fig. 4, Surge Tank Installation

10/16/2012

f200771

1. Radiator
2. Upper Radiator Hose

3. Clamp
4. Clamp Fastener

Fig. 5, Upper Radiator Hose Installation

9. Disconnect the surge tank vent line. See Fig. 6.

Page 2

Freightliner Service Bulletin, December 2013

20-72

Coronado Radiator Mounts, Update—EPA10
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional

Century Class Conventional
Argosy COE
Cargo
Columbia

Freightliner
Service Bulletin

> Coronado
Business Class M2
Cascadia
108SD/114SD

10. Loosen the A/C condenser and move it out of the way as follows.
10.1

Remove the receiver-drier and upper A/C hose mounting nuts, then free the receiver-drier. See Fig.
13.

10.2

Remove the radiator baffle from the right side of the radiator.

3
2
1
1

2
10/16/2012

1. Clamp
2. Line

f200769

3. P-Clamp

05/24/2012

1. Upper Condenser
Line Mounting Nuts

f200759

2. Receiver-Drier
Mounting Nuts

Fig. 6, Surge Tank Vent Line
Fig. 7, Receiver-Drier Installation (typical)

10.3

Unbolt the A/C condenser from the CAC. See Fig. 8.

NOTE: Wrap the condenser in cardboard to protect it while it is moved.
10.4

Carefully move the condenser around and set it on right front tire. Secure it as needed. See Fig. 9.

11. Remove the three radiator strut rods and discard them.
12. Remove the upper and left-side radiator baffles.
13. Remove the upper fan shroud. See Fig. 10.
14. Remove the fan. For instructions, refer to Group 20 of the Coronado Workshop Manual.
15. Remove the lower radiator hose. See Fig. 11.
16. Disconnect the transmission cooler lines from the radiator. Cap and/or plug the fittings to prevent spills.
17. Unbolt the radiator from the lower mounts.
18. Using an appropriate lifting device, remove the radiator assembly from vehicle. See Fig. 12.
19. Remove the lower fan shroud from the radiator. See Fig. 10.
20. Remove the CAC from the radiator.
21. Remove the lower radiator mounting brackets from the engine.
22. Install the new lower radiator mounting brackets. See Fig. 13. Tighten 191 to 234 lbf·ft (260 to 317 N·m).

Freightliner Service Bulletin, December 2013

Page 3

20-72
Freightliner
Service Bulletin

Coronado Radiator Mounts, Update—EPA10
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional

Century Class Conventional
Argosy COE
Cargo
Columbia

> Coronado
Business Class M2
Cascadia
108SD/114SD

2

3
4

1
05/24/2012

f200757

1. A/C Condenser
2. Isolator

3. Washer
4. Nut
Fig. 8, A/C Condenser Installation

23. Install the lower radiator isolators on the mounting brackets. See Fig. 14.
24. Using an appropriate lifting device, position the new radiator assembly in the vehicle. Install the mounting
nuts, but do not tighten them at this time. See Fig. 14.
25. Install the new upper radiator hose. See Fig. 5.
26. Connect the transmission cooler lines.
27. Apply sealant (48-00094-141) to the threads of the fasteners, then install the fan. Tighten 30 lbf·ft (41 N·m).
28. Install the new lower radiator hose assembly. See Fig. 11.
29. Install the upper fan shroud. See Fig. 10.
30. Install the surge tank. See Fig. 4. For instructions, see Section 20.00, Subject 110 of the Coronado Workshop Manual.
31. Install the new radiator strut rods. See Fig. 15. Tighten the radiator strut rod fasteners at the radiator 55 to
65 lbf·ft (75 to 90 N·m), and at the engine block 125 to 139 lbf·ft (171 to 188 N·m).
32. Tighten the radiator mounting nuts 140 to 170 lbf·ft (190 to 230 N·m).
33. Install the CAC plumbing at the turbocharger outlet and the CAC inlet. See Fig. 2.
34. Install the CAC plumbing at the CAC outlet and the engine inlet. See Fig. 3.
35. Install the A/C condenser as follows.
35.1

Page 4

Move the condenser into position and secure it temporarily. See Fig. 8.

Freightliner Service Bulletin, December 2013

20-72

Coronado Radiator Mounts, Update—EPA10
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional

Century Class Conventional
Argosy COE
Cargo
Columbia

Freightliner
Service Bulletin

> Coronado
Business Class M2
Cascadia
108SD/114SD

1

2
2

3
4
5

05/24/2012

f200760

1. Bungee Cord

2. Condenser

Fig. 9, Securing the A/C Condenser

1

10/04/2012

f200756a

1. Lower Fan Shroud
2. Upper Fan Shroud
3. Push Fastener

4. Washer
5. Screw

Fig. 10, Fan Shroud Installation

35.2

Position the receiver-drier and upper A/C line on their respective brackets and install the mounting
nuts. See Fig. 13. Tighten the nuts 14 to 16 lbf·ft (19 to 22 N·m).

35.3

Tighten the condenser mounting bolts 112 to 144 lbf·in (1266 to 1627 N·cm).

36. Install the radiator baffles.
37. Fill the cooling system.
38. Start the engine and check for coolant and transmission fluid leaks. Repair as needed.

Freightliner Service Bulletin, December 2013

Page 5

20-72

Coronado Radiator Mounts, Update—EPA10

Freightliner
Service Bulletin

FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional

Century Class Conventional
Argosy COE
Cargo
Columbia