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The 3.2 engine was designed to go into an East-West engine bay.
In the Touareg it has been turned through 90 degrees but is not North-South with the timing chain at the front of the engine: it's been installed South-North so the timing chain and it's hydraulic tensioner is at the back of the engine up hard against the bulkhead.
Timing chain stretch is a known issue on this engine. Unless you can find a mechanic with very small hands who knows what they are doing, then to replace the chain and tensioner is an engine out job.
However, a number of people have found that if you remove the hydraulic tensioner, which I understand is just about accessible, and re-prime it in a bath of engine oil before refitting it, this may be sufficient to restore the engine to good order.
In the Touareg it has been turned through 90 degrees but is not North-South with the timing chain at the front of the engine: it's been installed South-North so the timing chain and it's hydraulic tensioner is at the back of the engine up hard against the bulkhead.
Timing chain stretch is a known issue on this engine. Unless you can find a mechanic with very small hands who knows what they are doing, then to replace the chain and tensioner is an engine out job.
However, a number of people have found that if you remove the hydraulic tensioner, which I understand is just about accessible, and re-prime it in a bath of engine oil before refitting it, this may be sufficient to restore the engine to good order.
