LONDON, May 16 (Reuters) - European equity markets were expected to set fresh lows on Wednesday, with investors fretting about a possible Greek exit from the euro zone and its unpredictable ramifications for the rest of the region. Financial spreadbetters expected Britain's FTSE 100 to open 51 to 53 points lower, or as much as 1 percent, Germany's DAX to fall 38 to 47 points, or up to 0.7 percent, and France's CAC-40 to drop 13 to 20 points, also around 0.7 percent. The euro hit a four month low versus the dollar in Asian trade on Wednesday as investors continued to ditch European assets after Greek politicians failed to put together a ruling coalition following the inconclusive May 6 elections, forcing them to form a caretaker government and plan fresh polls. The new vote, expected in mid-June, could tip the balance of power towards leftist parties opposed to the terms of Greece's international bailout.