Timing belt VW Golf IV AHU (1.9 TDI) — replacement interval and kits

Timing belt for VW Golf IV AHU (1.9 TDI, 1996–2001) — replacement interval, compatible kits from Gates / Continental / Dayco / SKF.

Engine Specifications

Timing Belt Intervallo di sostituzione

Replace at whichever comes first — mileage OR age.

Compatible Timing Belt Kits

Replacement Recommendations

1. Replace as a kit — always replace rollers and tensioner together with the belt.
2. Water pump — on the AHU, the water pump is driven by the timing belt: inspect and replace if needed.
3. Torque settings — follow factory torque specs. Timing marks must align precisely.
4. Don’t cut corners — Gates, Continental, Dayco are proven brands for the AHU.

Domande frequenti

When to replace the timing belt on VW Golf IV AHU?

Every 120 000 km or 4 years — whichever comes first. Don’t delay: a broken belt typically causes major engine damage.

Should the water pump be replaced with the timing belt on AHU?

Inspect the pump. If mileage exceeds 80,000 km, replacing it together with the belt is recommended.

Which timing belt kit is best for AHU?

Gates and Continental are the top choices. For VW AHU: Gates K025439XS, Continental CT1162K3.