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Autopapyrus · Jaguar XF 3.0 V6 Diesel 240 hp (2013)
https://autopapyrus.com/guides/jaguar/xf/timing-belt-replacement/
Compiled automatically from service literature and owner experience. Specs are for the typical configuration — check them against your exact car before you start.

Jaguar XF 3.0 V6 Diesel 240 hp (2013): Timing Belt Replacement

On the 3.0 V6 diesel (Lion family), the timing belt is at the front of the engine. A separate fuel pump drive belt is at the rear, next to the transmission. This is labor-intensive work: you have to get to the belt through the air intake system, the coolant hoses and the accessory drive. A timing error will cause the pistons to hit the valves. If you have little experience, it is better to leave this job to a specialist who knows this engine.

Difficulty: Hard Time: 8-14 hours (for an inexperienced mechanic, 2 days) Steps: 14 Tools: Socket set and ratchet, torque wrench, camshaft locking tools (6 mm drill bits or pins will work), crankshaft locking tool from the V6 Lion kit, pliers for spring-type hose clamps, container for coolant, paint or marker, camera or phone to record connector positions, puller or vise for pulleys if needed

Part

  • 🔩 Timing belt kit (belt, tensioner and idler pulleys), high-pressure fuel pump drive belt (rear), water pump, coolant of the correct specification, new single-use bolts and clamps as listed by the manufacturer
There's a full repair manual for this car Every system, wiring diagrams and torque specs — not just this job. Haynes AutoFix (online) and 1 more. See manuals →

Step by step

14 steps
  1. Disconnect the battery. Prepare your work area and let the engine cool down completely. Drain the coolant. Replace the water pump at the same time as the belt, because it can only be reached with the belt removed.
  2. Remove the engine undertray, the air filter with its housing, and the entire intake air system (hoses to the turbochargers and the intercooler). Take a photo of each pair of connectors before disconnecting them.
  3. Remove the coolant hoses that block access, including the thermostat housing. The clamps are spring-type, and some are hard to reach. Plug the open ports with a clean rag.
  4. Remove the accessory drive belt. If necessary, remove the fan with its shroud, the pulleys and any brackets in the way. Sort the fasteners into groups so you don't mix up the bolt lengths later.
  5. Remove the timing belt covers and the cylinder head covers if they get in the way of checking the timing marks.
  6. Turn the crankshaft only clockwise (viewed from the front) until the holes in the sprockets of both camshafts line up with the holes in the cylinder heads. Insert the 6 mm locking tools. Lock the crankshaft with the proper locking tool.
  7. Use paint to mark the alignment on the sprockets, the belt and the block. This is a safeguard in case the locking tools turn out to be inaccurate.
  8. Release the tensioner and remove the old belt. Check that the locking tools are still in place. Spin the pulleys and the water pump by hand. Any play, noise or leakage means they must be replaced.
  9. Replace the water pump, the pulleys and the tensioner. Fit the new belt in the order shown in the factory diagram: first onto the drive sprocket, then onto the driven sprockets, and last onto the tensioner pulley. The span between the sprockets must be taut.
  10. Tension the belt using the tensioner's indicator mark. Tighten the pulleys, the tensioner and the sprocket bolts with a torque wrench. Take the values for this engine strictly from the manufacturer's specifications. Do not tighten them by guesswork.
  11. Remove the locking tools. Turn the crankshaft two full turns clockwise. The locking tools should slide back in easily and the marks should line up. If they don't, the belt is installed out of position, so repeat the installation.
  12. It is recommended to replace the fuel pump drive belt at the rear during the same job. Access to it is difficult, and taking everything apart a second time will cost more than replacing both together.
  13. Reassemble everything in reverse order: covers, pulleys, accessory drive, hoses, intake system. Refill with coolant and bleed the air from the system with the engine running and the heater set to maximum. Check the level after the engine has cooled down.
  14. Start the engine and check for fault codes, leaks and unusual noises. After 500-1000 km (300-600 miles), check the coolant level and the condition of the belt.

Common mistakes and warnings

  • A timing error or a broken belt on this engine leads to expensive repairs to the cylinder head and pistons. Do not turn the crankshaft counterclockwise, and do not turn the engine over with the locking tools removed. Replace belts by time interval as well as by mileage, because rubber ages. If you lack experience or the locking tools, take the car to a repair shop.
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