Audi A4 - Broken timing belt issues

Hi everyone!
Does anyone have a view on how likely a seized water pump could result in a timing belt breaking?
My car is an A4 sport 5 years old 70,000 miles and serviced in line the
variable service requirements.
thanks for your help!!
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Very likely since it's driven off the same belt if we're talking about the AWM engine.
Pete
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Pete wrote:

Thanks for your response.
I appreciate that the water pump is driven from the same belt, but is it common for a waterpump failure to wreck an A4 engine?
Or perhaps there is a more general issue with A4 timing belt failures as outlined by the US class action?
http://www.boston.com/business/articles/2005/07/17/class_action_can_be_engine_of_change /
I would be interested in other peoples experiences?
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http://www.boston.com/business/articles/2005/07/17/class_action_can_be_engine_of_change /
If its driven by the T-belt then a WP failure would cause havoc. At 70K miles you'd be advised to think about a T-Belt (and tensioner change) and to change the WP and thermostat while you were in there.
I know the VAG service interval is 100K+ miles but prevention is much cheaper than cure if it fails.
I.
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There were only a few years where the engine design was such that a failed WP would cause a TB failure, so in the grand scheme of things, it's probably not very common. But it's not impossible either.
Usually, the most common reason for TB failure is a prematurely (if you look at Audi's replacement recommendations) broken TB tensioner. But whatever the cause (broken tensioner or seized WP), the result is generally the same: bent valves on the engine.
Those who are "in the know" replace the TB, tensioner, rollers, and WP every 60K miles, just to be safe.
Cheers, Pete
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Audi UK now schedule timing belt change on all cars at four years/60k miles, whichever comes sooner (except the RS6, which is three years). This applies retrospectively, to all models with a timing belt.
--
Peter Bell - snipped-for-privacy@bellfamily.org.uk

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once anything driven by the belt seizes, the belt will most probably loose its teeth, heat up and................ping
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