* FTSEurofirst 300 falls 1.3 pct
* Confidence in banks erodes further
* Dollar dents autos; Continental up on bid interest
By Patrizia Kokot
LONDON, July 15 (Reuters) - European stocks fell sharply on Tuesday with banks heading the decline amid fears that the credit crisis will wreak more havoc on their balance sheets.
By 0838 GMT, the FTSEurofirst 300 <
> index of top European shares shed 1.3 percent to 1,118.77, close to its lowest level since July 2005.Banks were the sharpest decliners with the DJ Stoxx European banking index <.SX7P> shedding 2.8 percent. Deutsche Bank <DBKGn.DE> fell 3.6 percent, RBS <RBS.L> lost 5.1 percent and UBS <UBSN.VX> dropped 4.9 percent.
"The conditions are foul and it is possible that the downwards spiral continues if a possible run on banks in the U.S. intensifies," said Stefan de Schutter, an asset manager at Alpha Trading in Frankfurt.
France's Natixis <CNAT.PA> tumbled 7 percent after Citigroup cut the target price on the stock by 16 percent and reiterated its "sell" rating, pointing to an increased possibility of a dilutive rights issue.
In Spain, the collapse of property firm Martinsa Fadesa <MFAD.MC> weighed heavily on major creditor Banco Popular <POP.MC>, down 5 percent, and leading rivals such as Colonial <COL.MC> down 4.5 percent, and Renta <REN.MC>, down 7.5 percent.
BANKS DRAG CONTINUES
The case marks one of the biggest corporate failures in Spain's history and with the breakdown of U.S. mortgage lender Indymac <IDMC.PK>, intensified concerns over the outlook for the financial sector as banks' earnings season continues.
"Growth forecasts have been revised down considerably in the past 12 months, and all major European equity markets have now entered into bear market territory," Cazenove said in a strategy note.
"Banks' second-quarter earnings may be alright but if there is uncertainty over the outlook, the broad decline may well continue," Alpha's de Schutter added.
Fears over the impact of the credit crunch on company profits in the wider industry also lingered as the U.S. dollar <.DXY> weakened against major currencies, weighing on exporters such as automakers BMW <BMWG.DE> and Porsche <PSHG_p.DE>, which fell 2.8 and 2.2 percent respectively.
European shares rose on Monday after the U.S. Treasury and the Federal Reserve outlined a plan to shore up Freddie Mac <FRE.N> and Fannie Mae <FNM.N> -- the country's two largest mortgage lenders -- but concern about the outlook for regional U.S. banks and the broader financial sector persisted.
Later on Tuesday, Fed Chairman Ben Bernanke presents his outlook for the economy and monetary policy to the Senate banking committee. Data on wholesale inflation and retail sales will also be closely watched for any signs of improvement.
Around Europe, the FTSE <
> shed 1.3 percent, Germany' DAX < > lost 1.8 percent and France's CAC < > fell 1.2 percent.Other major decliners included miners as metal prices eased. Rio Tinto <RIO.L>, Vedanta <VED.L> and BHP Billiton <BLT.L> lost between 2.7 and 3 percent.
M&A LIFTS CONTINENTAL
Among gainers, M&A activity lent some support with Continental AG <CONG.DE> rallying 5 percent after newspaper reports that Schaeffler has secured a 30 percent stake in the German automotive supplier.
GDF <GAZ.PA> and Suez <LYOE.PA> rose 1 percent each as the two French utilities said they plan a special dividend of 0.80 euro after their merger is completed following a shareholders meeting on Wednesday.
Retailer Hennes & Mauritz <HMb.ST> surprised investors with better-than-expected June sales figures and the stock rose 0.5 percent.
Pharmaceuticals gained ground again with Roche <ROG.VX> edging up 0.2 percent after the drugmaker's majority-owned U.S. partner Genentech <DNA.N> pleased with its second-quarter sales.
(Reporting by Patrizia Kokot; Editing by Erica Billingham)