Transmission jerk, right after gear shift(?)
Thread Starter
Junior Member
Joined: Oct 2011
Posts: 66
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c55T
Transmission jerk, right after gear shift(?)
Since the temperature dropped (called winter), I'm getting this jerk right after the gear change. It only happens for the first couple of minutes. More strange is, perhaps, that when the temperature drops even more, that is a couple degrees below freezing, the gear changes are smooth again. So, between say 0 degrees and +10 degrees (Celsius that is) the gear changes are a problem, below they are alright (but after a minute or two when the tranny gets a little warmer the jerk appears) and when it's warmer they're fine again. I've checked the oil level and it's OK. I've also changed the oil twice in the last 3500km. My car is a C55 with appr. 180 000 km.
Any ideas?
/frejo
Any ideas?
/frejo
Senior Member
Joined: May 2010
Posts: 380
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From: Seattle, Warshington
2005 C55, 2006 Ram 2500 MegaCab diesel, sold 2001 Dodge 2500 Cummins, sold 87 190e-16v, sold 97 e420
When the car is not warmed up, you get a premature torque converter lockup when cold, you really only feel it if you tranny mount is toast, search the forum and you will find that the mounts only last 40K.
Thread Starter
Junior Member
Joined: Oct 2011
Posts: 66
Likes: 1
c55T
Thanks,
I suspected it had something to do with the torque converter, since the jerk is right after gear shift, but I didn't know that it could have something to do with the tranny mount. I'll look it up.
/frejo
I suspected it had something to do with the torque converter, since the jerk is right after gear shift, but I didn't know that it could have something to do with the tranny mount. I'll look it up.
/frejo
Senior Member
Joined: Oct 2010
Posts: 380
Likes: 47
C55 AMG T with Kleemann K2 and some stuff: 414 hp and 562 Nm :-)
Keep us posted, I have the same issue. I´ll check the gearbox oil level the
"scientific way" to start, with the car connected to Merc´s computor and
read level when oiltemperature is 80 degree celcius exactly.
My problem started with my first gearbox oilchange, after a while I changed
it again at another indieshop. Maybe the problem lies there; the oil is not completely changed (in the converter too) or the oil hasn´t got the right specs.
When warm it works perfect!
"scientific way" to start, with the car connected to Merc´s computor and
read level when oiltemperature is 80 degree celcius exactly.
My problem started with my first gearbox oilchange, after a while I changed
it again at another indieshop. Maybe the problem lies there; the oil is not completely changed (in the converter too) or the oil hasn´t got the right specs.
When warm it works perfect!
