Lusa7
New Member
- Joined
- Dec 2, 2013
- Messages
- 1
- Car
- clc 220 sport
Hi all
I have 2010 CLC 220 sport with 45k on the clock and it keeps having issues with power loss/hesitation at speed. When accelerating engine holds back then opens up, seconds later it drops down by 200 rpm and it' constant jerking whatever speed I'm doing. When I accelerate hard, there's no issues during that period but as soon I'm in traffic or trying to keep it at constant speed it will go up and down on revs by about 200rpm.
I have P2509 fault on- heater booster control module fault intermittent. I can reset with OBD ll reader but doesn't really sort out the issue and the fault keeps coming back on. It's only fault I have on my OBDll as well as on STAR diagnostics results. There's no EML light on, everything is fine on the dash. It started when my service due soon message came on. I done the service and it's still playing up.
Car's been to Mercedes 3 times now with no result. They keep saying that because the fault is not live, they're not sure what it is. After them having car for couple of days they still failed to fix it or even tell me what is actually wrong with it. I have this issue for over a month now and any help would be appreciated.
I have 2010 CLC 220 sport with 45k on the clock and it keeps having issues with power loss/hesitation at speed. When accelerating engine holds back then opens up, seconds later it drops down by 200 rpm and it' constant jerking whatever speed I'm doing. When I accelerate hard, there's no issues during that period but as soon I'm in traffic or trying to keep it at constant speed it will go up and down on revs by about 200rpm.
I have P2509 fault on- heater booster control module fault intermittent. I can reset with OBD ll reader but doesn't really sort out the issue and the fault keeps coming back on. It's only fault I have on my OBDll as well as on STAR diagnostics results. There's no EML light on, everything is fine on the dash. It started when my service due soon message came on. I done the service and it's still playing up.
Car's been to Mercedes 3 times now with no result. They keep saying that because the fault is not live, they're not sure what it is. After them having car for couple of days they still failed to fix it or even tell me what is actually wrong with it. I have this issue for over a month now and any help would be appreciated.
