You should be using Pentosin G12 (pink). If you are not currently, then flush the system completely before changing to G12 (I mean completely - run several loads of water through the engine, radiator, etc). If you don't, and you mix the G12 with another, over time it turns to a gel throughout the engine, and then you're in serious trouble.
i have a audi a6 avant 1999 2.5 tdi quattro turns over for a bit before it fires up warm or cold...
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i have a audi a6 avant 1999 2.5 tdi quattro turns over for a bit before it fires up warm or cold this happens
the rear panel opens slightly and then stops,the pump still runs after the rear panel has opened...
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the rear panel opens slightly and then stops,the pump still runs after the rear panel has opened slightly