Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSJAGUAR2002X-TYPE (X400) V6-2.5LREPAIR AND DIAGNOSISTECHNICAL SERVICE BULLETINSCUSTOMER INTERESTCOOLING SYSTEM - LEAKS FROM COOLANT EXPANSION TANK
2002 Jaguar X-Type (X400) V6-2.5L
Cooling System - Leaks From Coolant Expansion Tank
2002 Jaguar X-Type (X400) V6-2.5LSECTION Cooling System - Leaks From Coolant Expansion Tank
MODEL
X-TYPE
Date
05 Feb 2007
NUMBER
JTB00015
SECTION: 303-03 - ENGINE COOLING
Expansion Tank Coolant Leak
AFFECTED VEHICLE RANGE:
X-TYPE
VIN:
C00001 onwards
Model Year:
2002 onwards
CONDITION SUMMARY:
COOLANT LEAK FROM THE EXPANSION TANK
Situation:
A customer may report a concern of a coolant leak from the engine area. The coolant leak may be caused by the expansion tank bleed tube fracturing where the bleed tube meets the tank. The coolant leak can lead to an engine overheat condition.
Action:
Should a customer express concern, refer to the Repair Procedure detailed in this bulletin to install a new specification coolant expansion tank.
PARTS:
C2S 46861......Coolant expansion tank Qty 1
WARRANTY:
NOTE:
Repair procedures are under constant review, and therefore times are subject to change; those quoted here must be taken as guidance only. Always refer to DDW to obtain the latest repair time.

DDW requires the use of causal part numbers. Labor only claims must show the causal part number with a quantity of zero.
Normal warranty policy and procedures apply.
REPAIR PROCEDURE
REPLACE COOLANT EXPANSION TANK
NOTE:
Global Technical Reference (GTR) lookup sequence is as follows:
GTR Home > NAS > Service Information/ X400 - X-TYPE > Workshop Manuals > Bookmark "Powertrain/Engine/ 303-03: Engine Cooling/Removal and Installation" Link to "Coolant Expansion Tank (26.15.01)"
1. Refer to GTR section 303-03 operation 26.15.01 "Coolant Expansion Tank" and replace the coolant expansion tank.

Disclaimer
X-TYPE
Date
05 Feb 2007
NUMBER
JTB00015
SECTION: 303-03 - ENGINE COOLING
Expansion Tank Coolant Leak
AFFECTED VEHICLE RANGE:
X-TYPE
VIN:
C00001 onwards
Model Year:
2002 onwards
CONDITION SUMMARY:
COOLANT LEAK FROM THE EXPANSION TANK
Situation:
A customer may report a concern of a coolant leak from the engine area. The coolant leak may be caused by the expansion tank bleed tube fracturing where the bleed tube meets the tank. The coolant leak can lead to an engine overheat condition.
Action:
Should a customer express concern, refer to the Repair Procedure detailed in this bulletin to install a new specification coolant expansion tank.
PARTS:
C2S 46861......Coolant expansion tank Qty 1
WARRANTY:
NOTE:
Repair procedures are under constant review, and therefore times are subject to change; those quoted here must be taken as guidance only. Always refer to DDW to obtain the latest repair time.
DDW requires the use of causal part numbers. Labor only claims must show the causal part number with a quantity of zero.
Normal warranty policy and procedures apply.
REPAIR PROCEDURE
REPLACE COOLANT EXPANSION TANK
NOTE:
Global Technical Reference (GTR) lookup sequence is as follows:
GTR Home > NAS > Service Information/ X400 - X-TYPE > Workshop Manuals > Bookmark "Powertrain/Engine/ 303-03: Engine Cooling/Removal and Installation" Link to "Coolant Expansion Tank (26.15.01)"
1. Refer to GTR section 303-03 operation 26.15.01 "Coolant Expansion Tank" and replace the coolant expansion tank.
Disclaimer
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.