Huge jerk at mid-high rpm....Help!!

May 19, 2008 | 04:18 AM

alchang32

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C32 AMG

Huge jerk at mid-high rpm....Help!!

i was driving at night and was playing with the car a little bit and decided to down shift to 2nd, and step on it a bit and when i reached about 4500~5500 rpm the car has a huge jerk (foward and then back) it's like boost on and cut off for the jerk and boost back on...so pull,jerk,pull,jerk. it just seems wrong....i dont know what is causing it, i had a new IC pump installed...and i got my orignial pullies back on with a new belt...also had a ECU tune...can someone please help me?

Thanks!!!

May 19, 2008 | 04:24 AM

M_M

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C32 AMG

esp??

May 19, 2008 | 06:06 AM

cnchung

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From: HK

C32

S/C clutch problems??

May 19, 2008 | 07:15 AM

timh718

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check spark plug

May 19, 2008 | 11:22 AM

Fifth Ring

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C32 AMG

Quote:

Originally Posted by alchang32

I have had hiccups like that and I think it's got something to do with the transmission. Sometimes it gets fooled or overwhelmed when you ask for a downshift manually, and it was going to do one anyway. It's like a half-second where the power is completely cut off. It's very abrupt. I just consider it part of the German car "charm".

May 19, 2008 | 11:31 AM

c32used

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LET C32 2002

Don't you just hate issues?

May 19, 2008 | 02:49 PM

alchang32

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C32 AMG

dont think its the ESP, it more like the hiccup....it just seems so wrong since, i never had this kind of issues before my pulley swaps....also it not the spark plugs since i got new ones already...from LET!!! haha...other then the REALY STRONG JERK, which i cant really understand where its comming from...any possibility is the ECU re-learning? or belt issues? pulley installation problems?

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May 19, 2008 | 03:36 PM

alchang32

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C32 AMG

who should i order from? hmm? any recommendations?

what did you do to resolve it?

thanks!

May 19, 2008 | 06:05 PM

#10

MB_Forever

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From: California, USA

E63 P30, CL500 Sport

Quote:

Originally Posted by alchang32

who should i order from? hmm? any recommendations?

what did you do to resolve it?

thanks!

I don't think you need to order new parts, I think the mechanic just moves the electro magnetic clutch "slightly" closer so that it'll stay on stronger.

Contact Vadim @ VRP, he's an expert on this. He'll tell you exactly what to do. He's the one who fixed my car.....