Mercedes w271 jerks and dies at low RPM especially when air conditioner is switched o
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Joined: Oct 2015
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C class kompressor
Mercedes w271 jerks and dies at low RPM especially when air conditioner is switched o
I use a Mercedes-Benz C Class Komppresor 1.8 (2003), recently it vibrates and jerks forward at low speed and continues to jerk when in slow traffic especially when stop/start in very slow traffic most times when the air conditioner is turned on, clears up though when driving at normal speed. No malfunction on readout screen, It normally happens when the RPM is aroundhave a Mercedes-Benz C Class Komppresor 1.8 (2003), recently it vibrates and jerks forward at low speed and continues to jerk when in slow traffic especially when stop/start in very slow traffic most times when the air conditioner is turned on, clears up though when driving at normal speed. No malfunction on readout screen, It normally happens when the RPM is around 1000. If it is a higher RPM often it does not happen. Once I get past 30 mph and above, it does not happen anymore. Year: 2003 Make: Mercedes-Benz Model: C180 Engine:w271. If it is at a higher RPM often it does not happen. Once I get past 30 mph and above, it does not happen anymore. Engine:w271.
I changed the fuel pump and filter and no improvement.
I changed the fuel pump and filter and no improvement.
Member
Joined: Nov 2007
Posts: 171
Likes: 1
From: ontario, Canada
C230 COUPE 2003 M271
the ac compressor is putting extra load on the engine at low speeds so that is why that is making it worse.
you could have a vacuum leak which is a lot more noticeable at low engine rpm. did you have the hose recall work done listed on the first page? if not i would replace that hose thats not even $20 check for other leaks and clean the maf and maybe throttle body
you could have a vacuum leak which is a lot more noticeable at low engine rpm. did you have the hose recall work done listed on the first page? if not i would replace that hose thats not even $20 check for other leaks and clean the maf and maybe throttle body
Senior Member
Joined: Jul 2010
Posts: 250
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From: Charleston, SC
2005 C230K
This used to happen to me. Have you thoroughly cleaned your throttle body recently? Could also be a vacuum leak as someone said, or something transmission-related. Maybe also run a bottle of Techron.
Last edited by jtwillia2; Oct 15, 2015 at 03:15 PM.
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Joined: Oct 2015
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C class kompressor
Thanks all, it's actually a vacuum leak from the compressed air intake section. The problem has stopped but slightly comes up occasionally so I guess there is another leak somewhere to be detected.
I do not get the rich air mixture code or low charge pressure code again.
I guess I have to have my auto technician check properly for any other source of vacuum leak.
I do not get the rich air mixture code or low charge pressure code again.
I guess I have to have my auto technician check properly for any other source of vacuum leak.
Member
Joined: Aug 2008
Posts: 197
Likes: 27
From: Tejas
2016 C450 AMG, 2005 C230 Kompressor
Thanks all, it's actually a vacuum leak from the compressed air intake section. The problem has stopped but slightly comes up occasionally so I guess there is another leak somewhere to be detected.
I do not get the rich air mixture code or low charge pressure code again.
I guess I have to have my auto technician check properly for any other source of vacuum leak.
I do not get the rich air mixture code or low charge pressure code again.
I guess I have to have my auto technician check properly for any other source of vacuum leak.
I believe I have the same problem... What steps did you take to diagnose the vacuum leak? This could also be the Evap Leak code I get every once in a while, which at first I thought was the gas cap.
