W124 Transmission Hard Shifting from gears 2-3 and 3-4

[Guest benzw124]

My transmission is shifting rather hard while driving but is fine when i shift it into reverse or up and down the gear shift through PRND. There is no clunking sounds or any of that sort, it only shifts hard while driving. So now here is my dilema. My mechanic says that the car needs a new transmission which costs quite a bomb, while i have a gut feeling that it may be the bushings from the rear swaybar and rear differential which have most likely worn out over the years, thus causing the differential and swaybar to more violently when the transmission shifts. My mechanic doesnt see any point in changing the bushings as it would not solve the problem. My Benz is sick and i need advice from you fellow w124 owners to help me cure her. :pray: Ive changed both the transmission and engine mounts as well as the two flex disks and this shifting problem still persists albeit to a lesser extent now.

[keltanky]

go for gearbox overhaul la... you won't regret it!! sure love it alot!! :thumbsup:

[Guest 9339]

Check is your ATF too low or need to change, this will cause the gear slip too.

[Guest benzw124]

Thanks for the replies. The car just went in for a full service so the transmission fluid has been replaced already. Hmm looks like i have to overhaul my transmission soon....

[Guest mr w124]

I had the same experience. after overhauling the trans, the shifting was better but still jerky. then replaced the transmission valve body. got better but was still not smooth. finally changed the transmission mounting n its perfect now. but i also had the rear differential, propellers n flanging changed to the 16valve model as mine was noisy. so i cant really say if it was the transmission mounting prob or the differential prob. y dont u change the transmission mounting first n then see how it feels like?

[Guest paddy]

hmmm... got this hard shifting "feel" too, esp so when floor the accelerator :tongue1:

[Guest mr w124]

What a coincdence. After posting here, went to start the car the next day n realized that i had lost 4th gear again. Car kept going into neutral after 3rd gear. Just replaced trans valve body abt 3 months ago so not sure what happened. Thankfully it happened after i came back from malacca. cant imagine having to go down the nsh with gear3 roaring away.

[g8crasher]

mm did you replace your valve body with a used one or a new one ?

[Guest clarkewan]

in pandan loop got a indian guy that does auto gear box darn good!!

:D

if anyone needs to contact do let me know...

cheers!!

:D

[Guest clarkewan]

in case anyone need to replace or repair auto transmission:

TOP SPEED MOTORS

20 Pandan Loop

Singapore 128328

tel: 67798562

fax: 67756003

look for gurbak singh (nick) 96819011 or santok singh (ah seng) 98414549

they got website too: http://www.automatictransmission.com.sg

cheers!!!

JUST FOR SHARING....

I AM NO WAY OR ANYWAY RELATED TO THEM.....

THANKS!

[Guest Mike]

it is always better to get ur existing box overhauled. don't go for those from scrap yard

[Guest mr w124]

Car still running on 3 gears. Last time a recon valve body was fitted. 16valve one. Now mech tried another valve body still same prob. Sigh. waiting for another replacement to come. been driving at abt 80kmh in 3rd gear around 3.5 to 4k rpm. hope nothing breaks

[Guest clarkewan]

tat sounds bad...

guess topspeed would be able to solve your problem....

:D

[Guest et209]

guys. my problem is when the auto transmission shifts from 4th gear to stop. everytime, i have a slight jerk. i have already changed the shaft coupling. the jerk is almost non existence until i m stuck in traffic and the problem comes back again. any idea what is the problem?

[keltanky]

guys. my problem is when the auto transmission shifts from 4th gear to stop. everytime, i have a slight jerk. i have already changed the shaft coupling. the jerk is almost non existence until i m stuck in traffic and the problem comes back again. any idea what is the problem?

Bro, yours is R170, i believe your gearbox is 5 speed type. Our w124's is 4 speed. From my mech, he said the 5 speed type is slightly different and its lifetime warranty by merc!

[Guest et209]

Really there is a life-time warranty?!? ha. must call C&C tomorrow morning.