Hi There,
I have just joined this forum and one of the first items I see is exactly the same problem I am having, but as your last post was 3rd Sept, I wonder if you solved the problem yet?
My car is a 2014 2.2D Sport Nav which I bought in August 2017 and has only now done 35, 500 miles. I got it to replace a Honda Accord 2.2D which I had from new and had over 120,000 on the clock during which time I had not suffered any engine problems. I expected similar performance from the Mazda.
The first indication of anything occurred in late August about 2 weeks after having it serviced (by Mazda dealer), I was on the M3 going to H/Row early morning to go on holiday when a message appeared that SCBS inspection was required and it also disabled cruise control. I left it in the car park at H/Row and when I came back about 10 days later the message was cleared so I put it down to a glitch or that it was raining heavily when the message appeared. I had no further problems for a couple of weeks then whist returning home from Devon on bright sunny day it happened again. Once more after stopping, switching the engine off and restarting all was OK.
Finally last week I was just joining the A429 dual carriageway off the M4 junction and as I passed I truck I noticed a significant drop in power, then I got the SCBS message again. After stopping the other side of Swindon for a few hours when I restarted the message had cleared but the power loss remained, until the engine got to 2,500 rpm then it surged away as normal. When this happened, a message ‘engine requires inspection’ appeared. As it did not say stop I drove it back home and next day called the Mazda dealer . They were too busy to check it for several days so I asked my local garage, who I know and has looked after my cars for 25+ years if he would check it. We discovered that the problem is the smaller of the 2 turbo’s – hence the surge at 2,500rpm when the large one kicks in - which has been damaged by the by-pass flap which has dropped. Because we are of the opinion that this should not happen on an engine with such a low mileage the car is now at the Mazda dealers and I am waiting to see what response Mazda has to my request that they should fix it their cost.
Needless to say at the moment I am not a happy chappie!! So if anyone else reads this about an SCBS message they have displayed, I suggest you get the turbo checked asap.
Ken