Acceleration Breakdown...
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Junior Member
Joined: May 2007
Posts: 49
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From: Baltimore, Maryland
1998 C43
Acceleration Breakdown...
I have a 98 c43 with 64k miles. After a hard acceleration (ie from a stop light or on the highway and I floor it) there is a great deal of hesitation. I can actually put the pedal to the floor and nothing happens for a few seconds.
Once I shut the car off, and start back up, it is fine. I have replace the MAF, however, it did not help.
And when the car is in park, or neutral, and I hit the gas, it revs up to about 4,000 rpms and then breaks down.
Any suggestions?
Once I shut the car off, and start back up, it is fine. I have replace the MAF, however, it did not help.
And when the car is in park, or neutral, and I hit the gas, it revs up to about 4,000 rpms and then breaks down.
Any suggestions?
Member
Joined: Apr 2006
Posts: 105
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2001 ML55 AMG, 2011 VW Passat, 2001 S500L, 2002 S500L
I believe that the car will not rev above 4000 when standing to protect itself. None of my AMG's do.
I have had a similar problem to you with regards to the car having no performance and I put it down to an electrical fault although I may be wrong. I plugged in my diagnostic machine and cleared the faults and have not had this problem for over a year. Couldnt tell you which fault it was though. I always believed the car was in "limp mode, get me home mode"! Good luck.
I have had a similar problem to you with regards to the car having no performance and I put it down to an electrical fault although I may be wrong. I plugged in my diagnostic machine and cleared the faults and have not had this problem for over a year. Couldnt tell you which fault it was though. I always believed the car was in "limp mode, get me home mode"! Good luck.
MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,152
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From: Sydney, Australia
190D 2.5 (x2), 190E 2.6, W202 C240,W202 C43 (C55), W210 E55, W212 E250CDI
In park or neutral there is a 4000rpm rev limit.
As for the hesitation after hard acceleration, check that your air filter housing/engine cover is fully sealing to the air mass meter. If it isn't sealing properly/engine cover is lifted slightly then it will cause hesitation especially in hot weather/hot engine.
As for the hesitation after hard acceleration, check that your air filter housing/engine cover is fully sealing to the air mass meter. If it isn't sealing properly/engine cover is lifted slightly then it will cause hesitation especially in hot weather/hot engine.
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Joined: Feb 2006
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I have a 98 c43 with 64k miles. After a hard acceleration (ie from a stop light or on the highway and I floor it) there is a great deal of hesitation. I can actually put the pedal to the floor and nothing happens for a few seconds.
Once I shut the car off, and start back up, it is fine. I have replace the MAF, however, it did not help.
And when the car is in park, or neutral, and I hit the gas, it revs up to about 4,000 rpms and then breaks down.
Any suggestions?
Once I shut the car off, and start back up, it is fine. I have replace the MAF, however, it did not help.
And when the car is in park, or neutral, and I hit the gas, it revs up to about 4,000 rpms and then breaks down.
Any suggestions?
hey mr bob, i had the same hezitation from hard acc.from standstill,the transmission lagged between 1st and 2nd gear the others were fine,then i had to go easy on the throttle and second gear kicked in but i couldn't do any hard acc from stand still, this problem was because of a bad oxygen sensor, run the diagnostic test and see if you get any errors on faulty O2 SENSORS!!!!!!!!!!!!!! MY european c43 have 2 oxygen sensors at the front only no rear ones even if it said at mercedes parts catalogue, US version have 4 stuck
CHEERS
