Skip to content
KickTyres
CriticalCommonEngine

Volkswagen Transporter: T5 2.0 TDI timing belt and plastic idler pulley failure

T5 2.0 TDI timing belt and plastic idler pulley failure is a common engine fault on the Volkswagen Transporter on the 2009–2014 cars, and we rate it critical. Putting it right costs $700 to $1,400 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 18 documented faults on the Volkswagen Transporter.

Vehicle
Volkswagen Transporter
Engine
2.0L
Years
2009–2014
Fuel
diesel
System
Engine

This page covers the Volkswagen Transporter as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Volkswagen Transporter faults18 documented faults on this model

What you are looking at

No photograph available

We do not hold a verified photograph of the Timing belt yet. We would rather show none than show a picture of a different part.

What goes wrong

The T5 Transporter's 2.0 TDI diesel uses a rubber timing belt driving an interference engine. The plastic idler and tensioner pulleys are prone to cracking and seizure, causing sudden belt failure with no warning. This is widely documented in the Australian and NZ camper van and commercial communities. Belt failure causes piston-to-valve contact and total engine destruction. Manufacturer service interval is 100,000 km but independent workshops recommend 80,000 km or 4 years given pulley brittleness.

What you would notice

  • No audible warning before failure – belt snaps suddenly
  • Engine cuts out without warning while driving
  • If caught early, rattling or squealing from the belt area indicates tensioner wear
  • Visible cracking on idler pulley plastic body on inspection

How to check it

Where to look. Right side of engine (passenger side), behind the timing belt cover

  1. Confirm the timing belt replacement date and mileage from service records.

  2. Inspect the belt for cracking, fraying, or glazing.

  3. Physically inspect the plastic idler pulley for cracks, discolouration, or bearing roughness.

  4. Replace all idler and tensioner pulleys with every belt change.

Parts involved: Timing belt.

What it costs to put right

$700 to $1,400 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

Ask the seller

  • “When was the timing belt last replaced, and at what mileage?”
  • “Were the tensioner and idler pulleys replaced at the same time?”
  • “Who carried out the work, and is there a receipt?”

Now check the Volkswagen Transporter you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.

Volkswagen Transporter buyer questions

Is t5 2.0 tdi timing belt and plastic idler pulley failure serious on a Volkswagen Transporter?

We rate it critical and common on the Volkswagen Transporter. The T5 Transporter's 2.0 TDI diesel uses a rubber timing belt driving an interference engine. The plastic idler and tensioner pulleys are prone to cracking and seizure, causing sudden belt failure with no warning. This is widely documented in the Australian and NZ camper van and commercial communities. Belt failure causes piston-to-valve contact and total engine destruction. Manufacturer service interval is 100,000 km but independent workshops recommend 80,000 km or 4 years given pulley brittleness.

How much does it cost to fix on a Volkswagen Transporter?

$700 to $1,400 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Volkswagen Transporter years are affected?

Our research records this fault on the 2009–2014 Volkswagen Transporter. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.

How do I check for it before I buy?

Confirm the timing belt replacement date and mileage from service records. Inspect the belt for cracking, fraying, or glazing. Physically inspect the plastic idler pulley for cracks, discolouration, or bearing roughness. Replace all idler and tensioner pulleys with every belt change. Look here: Right side of engine (passenger side), behind the timing belt cover