Renault Megane stop/start problems - cause?

I regularly follow your Q&A page and was wondering if you could help me. I have a 2013 Renault Megane 1.5 DCI Coupe with Stop/Start and recently the system has failed to operate and I get the error "Check...

Potential turbocharger and stop-start conflict

My FIAT 500 TwinAir is the third car I have owned with a turbocharger and the first with a stop-start system which is on by default. When stopping after a long fast run (e.g. a queue at a motorway exit...

Vauxhall Insignia stop-start problem

I have just bought Vauxhall Insignia, but the stop start system doesn't shut off the engine when stationary in traffic. Is this a fault?

Why doesn't the stop-start function work on my car?

The stop-start, function on my two year old Mercedes-Benz SL350 AMG seems to work on a completely random basis. Some days it becomes operative after a journey of a mile while on others it will refuse to...