SERVICE CAMPAIGN BULLETIN
TITLE:

Clutch Oil Cooler Return Hose Replacement

CAMPAIGN REFERENCE:

03D

DOCUMENT NUMBER:

11 G 014

AFFECTED VEHICLES:

650S and 625C Coupe and Spider

SITUATION:

Quality Engineering at McLaren Automotive have identified that a number of
McLaren vehicles have left production fitted with a clutch oil cooler return hose
that is potentially at risk of failing due to not able to withstand the pressure and
heat required which will result in a split at the hose and loss of coolant.

PROCEDURE:

Please follow the procedure outlined in this document to replace the
necessary parts.

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Preparation work:
1. Please refer to AA-RM-02A04-04-007 - Lift vehicle on lifting platform
2. Please refer to AA-RM-02A04-04-008 - Remove/Install Floor Panel – Transmission
3. Please refer to AA-RM-02A04-04-001 - Remove/install Floor panel –Engine/fuel tank
4. Please refer to AA-RM-02A04-04-004 - Remove/install Floor panel – Rear Diffuser
Care Point: When the coolant fluid is drained it is not required to drain the coolant from the front LTR circuit, therefore please
ignore Steps 3-5 of the Drain fluid – coolant instructions.
Care Point: The coolant drained from the coolant circuit should be re-used therefore it has to be handled correctly to avoid
contamination. Please use clean catchment container and check fluid is clean and clear before reuse.
Care Point: If there is residue at the bottom of the container after drain or the coolant is discoloured or the vehicle has
experienced overheat or contaminated with oil, then the coolant must be replaced.
5. Please refer to AA-RM-03L01-01-005 - Drain/fill fluid – Coolant
Removal:
6. Remove bolt (1) M6 x 16 6Nm.
7. Detach the clutch cooler return hose (2) from the transmission.

1

2

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8. Un-do the bolts of all P-clips bolted to the frame (3).

3

9. Remove the Oetiker clip from the other end of the hose (4) and detach the clutch cooler return hose.

4

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Installation:
Care Point: Always lubricate the end of the hose with P80 THX during installation.
10. Install the new clutch cooler return hose (1) to the transmission (2) and torque to 6Nm.

2

1

Care Point: The size of the Oetiker clip is 23.5mm.
11. Install the clutch cooler return hose to the solid LTR hose (3).

3

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12. Install the P-clips to the frame (4) and torque to 8Nm.

4

13. When installing the clutch cooler return hose it is mandatory to check and measure the clearances in three different locations.
A– Between the clutch cooler return hose and link pipe heatshield. The minimum clearance should be 15mm. If this cannot be
achieved by adjusting the hose clips and end of the hose, please contact McLaren Technical Helpdesk.
B– Between the clutch cooler return hose and the left hand driveshaft. The minimum clearance should be 15mm. If this cannot be
achieved by adjusting the hose clips and end of the hose, please contact McLaren Technical Helpdesk.
C– Between the clutch cooler return hose and the edge of the clutch oil cooler. The minimum clearance should be 15mm.
A clash here may occur when there is too much hose rear warded of the p-clip at point D. If this cannot be achieved by adjusting
the p-clip, please contact McLaren Technical Helpdesk.

A
B

C

D

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14. Please refer AA-RM-03L01-01-005 - Drain/fill fluid – coolant to vacuum fill the coolant.
15. Check for external leaks. If none found no further action is required.
16. Install components in reverse order.
Please contact your Regional Aftersales Manager should you have any questions relating to the information contained within this
bulletin.

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WARRANTY INFORMATION
DESCRIPTION

RESOLUTION CODE

TOTAL REPAIR TIME

Clutch Oil Cooler Return Hose
Replacement

E0F20120A12C2D01

1.4 hours

PARTS INFORMATION
DESCRIPTION

PART NUMBER

QUANTITY

ORDER PROCESS

Clutch Oil Cooler
Return Hose

13F0528CP

1

Unipart

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