Hi. I am absolutely at my whits end with this issue. I will start off by saying I have zero car or mechanical knowledge.
I have a 2014 a220d automatic on 85000 miles. I bought it in September last year, and at the turn of the year I noticed an occasional judder with acceleration, which I unfortunately ignored. Last month it got a lot worse, combined with a huge hiss and constantly going into limp mode with low boost pressure. I had it at a garage last week, where they replaced the egr pipe(?). This is where my knowledge goes. It is a sliver metal pipe at the bottom, back of the engine. It was pretty much snapped in half. They showed me the smoke test video and pipe after they took it off. Unfortunately after this the car was performing no better.
Basically the car goes into limp mode pretty much straight away, and bunnyhops either during acceleration or when maintaining speed. Earlier on today it also cut out entirely whilst performing a 3 point turn. The bunnyhop feels like someone pulling the handbrake and releasing it again every few seconds. The revs drop 100 every time.
So today, I felt a bit cold. I realised since I owned it I have never turned the aircon off. I turned it off, and for the first time in months the car drove faultless. I was unsure, so i put it back on, and then again the juddering. Turned it off again, stuck it in sport mode and blasted it. No limp mode, no problems seemed to occur.
Now, what can this be? It seems so bizzare and ridiculous that the aircon can have such an impact on the running of the engine. Is this something anybody has heard of? What could it be?
Any help would be so so appreciated. I've been struggling so much and every garage keeps telling me to replace the turbo, but I don't want to as when it isn't in limp mode the turbo seems fine.
Thanks in advance for any ideas!
I have a 2014 a220d automatic on 85000 miles. I bought it in September last year, and at the turn of the year I noticed an occasional judder with acceleration, which I unfortunately ignored. Last month it got a lot worse, combined with a huge hiss and constantly going into limp mode with low boost pressure. I had it at a garage last week, where they replaced the egr pipe(?). This is where my knowledge goes. It is a sliver metal pipe at the bottom, back of the engine. It was pretty much snapped in half. They showed me the smoke test video and pipe after they took it off. Unfortunately after this the car was performing no better.
Basically the car goes into limp mode pretty much straight away, and bunnyhops either during acceleration or when maintaining speed. Earlier on today it also cut out entirely whilst performing a 3 point turn. The bunnyhop feels like someone pulling the handbrake and releasing it again every few seconds. The revs drop 100 every time.
So today, I felt a bit cold. I realised since I owned it I have never turned the aircon off. I turned it off, and for the first time in months the car drove faultless. I was unsure, so i put it back on, and then again the juddering. Turned it off again, stuck it in sport mode and blasted it. No limp mode, no problems seemed to occur.
Now, what can this be? It seems so bizzare and ridiculous that the aircon can have such an impact on the running of the engine. Is this something anybody has heard of? What could it be?
Any help would be so so appreciated. I've been struggling so much and every garage keeps telling me to replace the turbo, but I don't want to as when it isn't in limp mode the turbo seems fine.
Thanks in advance for any ideas!
