I have an 07 Diesel with 65k on the clock which up to now has proved very comfortable and reliable. However since mid December I have had issues with the ETC light coming on/reduction in power/and threatening to stall at slow speed. If I stop switch off and restart it clears but then returns some time later. The car has been into an HJ approved Bosch member garage who have interogated the onboard computer which reported that the throttle pedal faulty. This has been replaced and yet I am still having the same issues. Has anybody else had experience of this issue - I understand the same engine is used in the current Mercedes ML range. This really is frustrating so any help would be much appreciated.