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Engine Timing Belt/Chain & Water Pump Catalog • Years 1990 – 2003

Timing Belt / Chain Volkswagen Transporter / Caravelle T4 (70X / 7D) – When to Replace Timing Belt / Chain & Water Pump?

Complete timing belt / chain replacement interval overview for Volkswagen Transporter / Caravelle T4 (70X / 7D) by engine code. Find out whether your engine uses a dry timing belt, timing chain or belt-in-oil (Wet-Belt).

Timing Belt / Chain Specs by Engine for Volkswagen Transporter / Caravelle T4 (70X / 7D) (8 engines):

Engine & Codes Timing Type Replacement Interval Water Pump & Notes
2.5 TDI R5 5-cylinder (65 kW / 75 kW / 111 kW)
Codes: AJT, ACV, AUF, AXG, AHY
Toothed Timing Belt + Water Pump 90,000 – 120,000 km / 6 years ALWAYS replace the timing belt kit together with the water pump and fresh coolant!
Coolant: VW TL 774-L
2.5 TDI V6 (110 kW / 114 kW / 120 kW / 132 kW)
Codes: AFB, AKN, AYM, BDG, AKE, BAU, BDH
Toothed Timing Belt + Water Pump 90,000 – 120,000 km / 6 years ALWAYS replace the timing belt kit together with the water pump and fresh coolant!
Coolant: VW TL 774-L
1.9 TDI (66 kW / 90 HP)
Codes: AGR, ALH
Toothed Timing Belt + Water Pump 90,000 – 120,000 km / 6 years ALWAYS replace the timing belt kit together with the water pump and fresh coolant!
Coolant: VW TL 774-L
1.9 TDI (81 kW / 110 HP)
Codes: AHF, ASV
Toothed Timing Belt + Water Pump 90,000 – 120,000 km / 6 years ALWAYS replace the timing belt kit together with the water pump and fresh coolant!
Coolant: VW TL 774-L
1.8 20V (92 kW / 125 HP)
Codes: AGN, APG, ADR, APT
Timing Chain (with hydraulic tensioner and guide rails) 130,000 – 200,000 km (replace immediately if cold-start rattle or P0016 correlation code occurs) Timing chain life is greatly extended by changing engine oil every 10,000 – 15,000 km max!
Coolant: VW TL 774-L
1.8 T 20V / RS (110 kW / 132 kW / 150 HP / 180 HP)
Codes: AGU, AUM, AUQ, AEB, AWT
Toothed Timing Belt + Water Pump 90,000 – 120,000 km or 6–7 years (including pulleys and water pump) Mandatory replacement of timing-belt-driven water pump + fresh coolant
Coolant: VW TL 774-L
2.0 MPI (85 kW / 96 kW)
Codes: AQY, APK, AZJ, ALT
Toothed Timing Belt + Water Pump 90,000 – 120,000 km or 6–7 years (including pulleys and water pump) Mandatory replacement of timing-belt-driven water pump + fresh coolant
Coolant: VW TL 774-L
2.8 V6 30V (142 kW / 193 HP)
Codes: ACK, ALG, AMX, BBG
Timing Chain (with hydraulic tensioner and guide rails) 130,000 – 200,000 km (replace immediately if cold-start rattle or P0016 correlation code occurs) Timing chain life is greatly extended by changing engine oil every 10,000 – 15,000 km max!
Coolant: VW TL 774-L