zeaq

Hello,

Been noticing sometimes when I slowed down at traffic light and stop. I get a very minimal hesitation from the gearbox when it trying to go to 1st gear?(complete stop at traffic lights).

The slight jerk is not noticeable but I can felt it just a bit. But most of the time, its ok. Stop & go traffic e.g Traffic jam- it's ok(No jerk or what so ever) It only when I drive normal speed & stop at the traffic lights. I do occasionally get the slight jerk/ hesitation but not every time.

Ideas?

i'm at 26k KM & planning to bring it in at 35k service & will ask about this.

INS1GNIA

Does the car have a tune? If the car does, it is pretty normal.

What mode do you usually drive in (C, S, S+, M)?

zeaq

The ECU is re flash to have more HP according to the ex owner & the car is equip with full IPE exhaust system.

When I send my car to the Benz dealer few months back to have the radio fix- They reprogram the car entertainment system with their laptop diagnostic tools. They said my ECU is already modified etc.

The car usually does City driving- So I just use comfort mode most of the time.

INS1GNIA

I wouldn't worry too much about it then. The car will lurch a little bit depending on the speed and when the car feels like shifting.

tpliquid

my car does that too, got it used not sure if it was tuned or not.

NotABaller

Happens to my car too. Usually around 1k-2k in second downshifting into first into engine braking. I suspect maybe too much juice on the rev match and then too much resistance from engine brake, causing a slight juke.

SuckaGDog

Did you start noticing that after you flashed your tune?

NotABaller

Nope, happened before it too. It's not noticible if I'm downshifting while braking or if I downshift and then accelerate. Only downshift into coasting produces this, so I'm pretty sure it's okay. I highly suspect the little juke is just due to the increased deceleration from engine braking at 1st instead of 2nd, with a moment in between where the "clutch" is disengaged during the rev match.

skratch77

Hate driving mine in traffic.i guess it's a trade off and wished I had a torque converter somtimes

97W202

seems to be common then, my car does it with 35,000 miles and 100% stock