And yet another problem with my W213. I was driving back from Cardiff this morning on the M4 when I noticed a amber engine warning light on my dash. In a panic, I pulled into the nearest services to call Mercedes Coventry to get my car booked in. I was told by the booking line agent that an amber warning light is ok to drive providing I had no loss of power. The car is driving as normal but this Engine Warning Light is worrying me and my car is not booked in until Thursday. Any suggestions to what may be the problem? I’m seriously disappointed with this car, I’ve had the car since May 2019 and this is the fourth time she’s been into a main dealer (the last time was my fault) never had a real issues with my previous three five series BMWs!