1st to 2nd
Thread Starter
Senior Member
Joined: Apr 2003
Posts: 250
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1st to 2nd
i have an c230 sedan auto, when i tried to have the car in 1st and let it shift itself into 2nd. the car has big jerking (or kick back) feeling like the feeling you get when you drive an manual .... is this normal? because it doesn't happen when the car shift 2nd to 3rd by itself (it smooth..) is it just the way transmission is program so the made the car more aggressive on the low gear or something that i should take it to dealer....
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From: WOT somewhere in the Bay Area
1951 Caterpiller D6
Originally posted by c230_kS
haha... sorry my bad... i mean downshift to 1st and floor it so it will shift itself into 2nd
also, when the engine is cold, the 1st to 2nd gear chokes
haha... sorry my bad... i mean downshift to 1st and floor it so it will shift itself into 2nd
also, when the engine is cold, the 1st to 2nd gear chokes
According to MBUSA, they never heard of this problem before and used my car to test different "fixes" After replacing the shifter, trans valvebody (with MY 2000 unit), trans ECU, engine ECU and various sensors, the problem has been reduced but not gone. I also had my ECU reprogrammed by 2 different tuners for more power and higher RPM shifts. The car is faster but the problem still exists. I was convinced they fixed it with the later model valve body but when it happened again a few months ago, MBUSA threw in the towel and said they were not going to fix it.
Their comment was something like "Only a very small number of cars are effected under very specific conditions and the event is not damaging nor unsafe". If enough of us keep complaining, maybe we'll finally get satisfaction.BTW, I've tested the problem on loaners and other MBs and found that less than 10% have exhibited it consistently. In fact, my '00 CLK 430 has only done it once and it was on a downhill road which could have contributed.
Thread Starter
Senior Member
Joined: Apr 2003
Posts: 250
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hm....i did this when the car is at full stop and i have the car in 1st gear then full throttle without presing the button (the one u can step on on gas pedal..)let it shift into 2nd by itself, then it jerks
