Hi Everyone,
This is my first post on the site, so please forgive me if I have put this in the wrong section.
I bought a C250 CDI Coupe (late 2011 model with the facelift interior) in Feb 2021 which had been running well until recently. The car was in the body shop for a week being painted, so of course was sat for 8 days in total without moving much. When I picked the car up it took 4 attempts to start the car, despite the body shop owner having just driven it in front of me. At no point did the engine attempt to tick over and no dash icons showed up. After it started up it drove completely normally.
The next day I had to drive to York (220 miles away or so). About halfway up, I pulled up at a set of traffic lights and immediately the car died on me. Again, it took 4 attempts to restart with no dash icons or attempts to tick over. I then had to pump the brake pedal so that I didn't completely come to a stop as doing such meant the car would die again. The exact same thing happened on the drive back the following day.
As a result, I called a mobile mechanic out. He checked the battery and alternator, both were fine. He also did a diagnostic test which showed up 2 stored codes, which he then cleared and reset. He also found that the DPF has been welded back together, so I can only presume at some point it was cleared out so it flows straight through. He also suggested that I should get my oil filter replaced.
I took it straight down to my mechanics for them to replace the filter, which they did. However, as soon as I got it off the forecourt it died again. Since then, every time I stop, regardless of whether the car is in Drive, Neutral or Park, it dies on me and takes a few attempts to restart.
Does anyone have any idea as to what this could be and how to go about fixing it? Understandably, I don't feel safe to drive it at the moment, so I'm keen to get to the bottom of it ASAP. Any help or advice is greatly appreciated.
This is my first post on the site, so please forgive me if I have put this in the wrong section.
I bought a C250 CDI Coupe (late 2011 model with the facelift interior) in Feb 2021 which had been running well until recently. The car was in the body shop for a week being painted, so of course was sat for 8 days in total without moving much. When I picked the car up it took 4 attempts to start the car, despite the body shop owner having just driven it in front of me. At no point did the engine attempt to tick over and no dash icons showed up. After it started up it drove completely normally.
The next day I had to drive to York (220 miles away or so). About halfway up, I pulled up at a set of traffic lights and immediately the car died on me. Again, it took 4 attempts to restart with no dash icons or attempts to tick over. I then had to pump the brake pedal so that I didn't completely come to a stop as doing such meant the car would die again. The exact same thing happened on the drive back the following day.
As a result, I called a mobile mechanic out. He checked the battery and alternator, both were fine. He also did a diagnostic test which showed up 2 stored codes, which he then cleared and reset. He also found that the DPF has been welded back together, so I can only presume at some point it was cleared out so it flows straight through. He also suggested that I should get my oil filter replaced.
I took it straight down to my mechanics for them to replace the filter, which they did. However, as soon as I got it off the forecourt it died again. Since then, every time I stop, regardless of whether the car is in Drive, Neutral or Park, it dies on me and takes a few attempts to restart.
Does anyone have any idea as to what this could be and how to go about fixing it? Understandably, I don't feel safe to drive it at the moment, so I'm keen to get to the bottom of it ASAP. Any help or advice is greatly appreciated.