I have a Megane II 1.9 DCI 03plate which has a serious lack of power, check injection & service light are on. Renault have had it on their diagnostic machine and they are telling me it is the glow plugs ? could this be right I was under the impression glow plugs were to start the car and nothing to do with performance. Please advise !!!!!!!!!!!!!!!

Leady, March 2009

I had the same problem and replaced the air intake filter and it worked fine after that

Bob, April 2009