How to Replace Serpentine Belt Tensioner 98-05 Volkswagen Beetle

Difficulty: Intermediate · About 30 min · Volkswagen Beetle

Test and replace the serpentine belt tensioner on a 1998-2005 Volkswagen Beetle.

Steps

1. Access the tensioner

   Pull the oil dipstick out, remove the plastic engine cover, reinsert the dipstick, then move the radiator hose aside for clearance.

2. Test the old tensioner

   Pull on the belt by hand; if it moves easily, the tensioner is worn and needs replacing.

3. Remove the old tensioner

   Fit a 13mm socket and extension or vise grip pliers onto the tensioner knob, pull it aside to release belt tension, slip the belt off the tensioner and alternator, release the tensioner, remove its three 13mm bolts, then lift it up and out of the engine bay.

4. Install the new tensioner

   Set it into place, start all three 13mm bolts by hand, tighten them to about 25-30 ft-lb, consult a belt diagram if needed, pull the tensioner aside again with vise grip pliers, loop the belt over the alternator, then release the tensioner.

5. Reinstall the engine cover

   Pull the dipstick out, refit the plastic engine cover, then reinsert the dipstick.

Check your vehicle’s repair manual for exact specifications and fit.