Revised Crankcase Breather Valve for 2002 Jaguar X-Type Engines - Engine Builder Magazine
Connect with us


Close Sidebar Panel Open Sidebar Panel


Revised Crankcase Breather Valve for 2002 Jaguar X-Type Engines


It has been revealed that the crankcase breather valve on certain 2002 Jaguar X-Type engine applications is wearing prematurely due to resonance in the pintle spring. This is caused by failure of the valve to operate in certain conditions. Initially the customer will experience engine noise and rough running, misfire, excess exhaust smoke, MIL lamp illumination and excessive oil consumption.

Click Here to Read More

Check the crankcase breather valve, if the valve body is black, replace the current valve with a new improved design valve, p/n C2S 25648. If the crankcase breather valve body is green or grey no further action is required.

Caution: Failure to complete the repair this condition could lead to permanent engine damage.


1. Displace breather hose from breather valve.

2. Twist breather valve half a turn in the camshaft cover to release the breather valve.

3. Remove the breather valve from the camshaft cover.

4. Fit and align a new breather valve to the camshaft cover.

5. Secure the breather valve in the camshaft cover by twisting half a turn.

6. Align the breather valve elbow to the correct orientation.

Remove and destroy previous manufacturer tech bulletin XT303-S928, dated 10/02. Replace with this Bulletin. Revisions are marked with a bar and in bold text.


Affected engines:

2.5L VIN Range 2XC00295 – 2XC59932

3.0L VIN Range 2WC00295 – 2WC59932

Some or all of this information was provided by the Automotive
Parts Remanufacturers Association (APRA). For more information on
technical bulletins available through APRA call 703-968-2772 or visit


Additional Tech Tips>>

Engine Builder Magazine