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Autopapyrus · Volkswagen Passat 1.9 TDI BXE (2008)
https://autopapyrus.com/guides/volkswagen/passat/timing-belt-replacement-with-rollers-and-water-pump/
Compiled automatically from service literature and owner experience. Specs are for the typical configuration — check them against your exact car before you start.

Volkswagen Passat 1.9 TDI BXE (2008): Timing Belt Replacement with Rollers and Water Pump

The BXE is an 8-valve 1.9 TDI diesel with unit injectors, and it uses a timing belt. The belt drives the camshaft, and the camshaft in turn operates the unit injectors, so a snapped belt or a skipped tooth lets the valves hit the pistons and leads to an expensive repair. Replace the belt roughly every 90,000-120,000 km (56,000-75,000 miles) or every 5-6 years, whichever comes first, and always together with the pulleys and the water pump.

Difficulty: Hard Time: 4-6 hours Steps: 15 Tools: Socket and wrench set, torque wrench, Torx/XZN (multi-spline) sockets for fasteners, camshaft locking tool and crankshaft locking tool (factory VAG locking tools or equivalents), tensioner pulley wrench (two-pin), lift or jack with stands, coolant drain pan, marker

Part

  • 🔩 Timing belt kit for 1.9 TDI 8V: toothed belt, tensioner pulley, idler pulley, plus a water pump. Branded kits (Continental/CT, Gates, INA, SKF, Dayco, HEPU) are available with the pump included. You will also need: a new crankshaft pulley bolt, G12/G12+ coolant (match the color of the current coolant), and a new accessory drive belt if the old one is worn
There's a full repair manual for this car Every system, wiring diagrams and torque specs — not just this job. Haynes and 11 more. See manuals →

Step by step

15 steps
  1. Shut off the engine, let it cool down, and disconnect the negative battery terminal. Open the hood and remove the engine cover and any air ducts that block access to the front of the engine.
  2. Raise the front of the car, remove the right front wheel, and remove the wheel arch liner or the underbody shield. Drain the coolant from the radiator, or have a drain pan ready, since the water pump is being replaced.
  3. Release the tension on the serpentine accessory drive belt and remove it. If you plan to reuse the belt, mark its direction of rotation before removing it.
  4. Remove the upper timing belt cover. Then remove the right engine mount with its bracket, or support the engine with a jack using a wooden block under the oil pan, to get access to the lower and middle covers.
  5. Remove the crankshaft pulley (damper) and the lower timing belt cover. The pulley bolt is very tight, so hold the crankshaft against rotation, and do not use an impact tool on it unless you have experience.
  6. Turn the crankshaft clockwise until cylinder 1 is at TDC. The mark on the camshaft pulley lines up with the mark on the housing, and the holes in the flywheel and camshaft line up for the locking tools. Insert the crankshaft locking tool and the camshaft locking tool. Never turn the engine counterclockwise with the belt installed.
  7. Use a marker to mark the direction of rotation on the old belt if it is not already marked. Loosen the nut or bolt of the tensioner pulley and release the tension on the belt.
  8. Remove the old belt. Do not turn the shafts after the belt is off, and keep the injection pump pulley and the camshaft pulley locked at TDC.
  9. Remove the tensioner pulley and the idler pulley. If you are replacing the water pump, unbolt and remove it, clean the mating surface, and install the new pump with a new gasket or O-ring. Tighten the pump bolts evenly and to the torque specified in the service manual.
  10. Install the new pulleys. Check that they spin smoothly, with no play or noise. Do not fully tighten the tensioner pulley yet, because it must be able to rotate freely.
  11. Fit the new belt in this order: crankshaft pulley, idler pulley, camshaft pulley, water pump pulley, tensioner pulley. The run between the crankshaft and the camshaft must be taut with no slack. If the belt and pulleys have alignment marks, check that they match.
  12. Adjust the tension using the mark on the tensioner: turn the eccentric until the pointer lines up with the mark or the position specified in the service manual, then lock it by tightening the nut or bolt to the torque specified by the manufacturer.
  13. Remove the crankshaft and camshaft locking tools. Turn the crankshaft two full revolutions clockwise by hand, using a torque wrench on the pulley bolt. Then install the locking tools again and check that everything has returned to TDC and that the tensioner mark matches the reference. If not, repeat the adjustment.
  14. Reassemble in reverse order: the lower and upper covers, the crankshaft pulley on a new bolt (the torque and angle are given in the service manual, typically about 120 N·m (89 lb-ft) plus a 90° turn; verify against the service data), the engine mount, the accessory drive belt, the wheel, and the underbody shield.
  15. Refill the coolant, bleed the air from the cooling system, and warm up the engine until the thermostat opens. Check the coolant level and look for leaks at the water pump and hoses. Start the engine, listen to the belt and pulleys, and check that there are no fault warnings on the instrument cluster.

Common mistakes and warnings

  • A timing error on this engine causes the pistons and valves to collide, and the repair will cost far more than the belt replacement itself. If you do not have experience or the proper locking tools, take the job to a repair shop. Do not reuse the old pulleys or the crankshaft pulley bolt, and never turn the shafts counterclockwise, whether the locking tools are installed or not.
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