Hello Elk-Fans….I have a big problem with my V70 Diesel Kombi Bj.99 key no. 9101/743. Since yesterday I hear a subliminal tacker in the engine…as if it is not running on all pötten, give extreme gas…no oil loss, no water loss…(i.e. about 2 weeks ago the water tank was completely empty from today to tomorrow, but since then no more and before that has never happened!! I control everything almost daily.. Maybe the one or A has change from you a tip, or in the best case, the time and desire to look at it??!! Are really afraid to drive with it and possibly scrape the engine with it… he has 350,000 km on the clock (not laughing, was always reliable!!) About help and answers I would be very grateful!! LG Sabine