Mercedes recalls 3m diesel cars over emissions concerns

Daimler acts to reduce nitrogen oxide output as diesel emissions remain under scrutiny in wake of VW scandal

Almost every new Mercedes-Benz diesel car bought in the UK during the past six years is being recalled to improve their emissions performance.

Germany's Daimler, which makes the vehicles, said the measure to reduce nitrogen oxide (NOx) output, which will cost the company about a220m (195m), would involve no cost to owners.