Mercedes is planning an ‘eco-offensive’ for this year’s Frankfurt motor show (IAA) in September.

German consumer magazine Auto Motor und Sport said Mercedes would display 18 eco-models due on sale in the next few years.

The main display would feature the three main model ranges (C-, E- and S-class) with a combination of diesel fuel, Bluetec exhaust scrubbing and mild hybrid technology.

The report said that the C-class version would be available from early 2011 and would use less than five litres (a little more than an imperial gallon) of diesel per 100km (50 miles). This would put CO2 emissions at below the 130g/km level that the EU is hoping to introduce as an average for all new passenger cars.

The combination of technologies would also allow Mercedes to be the first OEM to meet Euro 6 emissions requirements set for introduction from 2014.

Mercedes is also planning series production of a fuel cell-powered B-Class. A small batch of 150 cars would be produced in 2010.

Mercedes would not comment on the report.

German automotive industry trade association Verband der Automobilindustrie (VDA) has already applied the theme ‘sustainable mobility’ to this year’s IAA. It is intended to hand back the initiative for fuel efficient technologies to vehicle manufacturers who this year have been forced into defending their slow progress towards reducing CO2 emissions.