Qtronic transmission oil change - Page 2 - Alfa Romeo Forum
You are currently unregistered, register for more features.    
Thread Tools Search this Thread
Status: Powerflex Mk4 - Non Squeak Edition
Club Member
Membro Premio
JabawokJayUK's Avatar
Join Date: Jul 2011
Location: United Kingdom
County: Cambridgeshire
Posts: 3,378
Images: 31
Originally Posted by brunojulio View Post
Very helpfull thread for me guys, thanks.
I just came from the local dealer garage (Geneva, Switzerland) where I was told that they don't change the oil in this gearbox. I asked them to just check if everything is in order.

My 159 TI is doing the 70.000Km service and I'm not sure they would check the gearbox in a normal factory service...

I've been feeling some strange vibration on highway at around 100Km/h (the gearbox sometimes chooses 5th other times the 6th gear) and when this happens the car starts vibrating when in acceleration... it disappears when I rev up the engine a bit to 120km/h in 5th a couple of times
The gearbox has "oil for life" so it is never checked or changed during the service. You can get the oil changed by a specialist transmission repair company or other specialist, but it is not a DIY job unless you have the right tools, documentation and very good DIY credentials!

The most common issues (as stated before in this thread) are sticky solenoids. This can be relieved with an oil change, but only a full refurbishment of the solenoids will solve the problem and that is a £2000 job. This is most noticeable as "up shift flairs" in the lower gears (usually 2 to 3) and "clunky" down shifts. An oil change will make this a thousand times better.

The thing with this gearbox is it is very sensitive to torque changes out of the engine. If your engine is running rough and producing less power than normal, the gearbox will not be fully calibrated to this reduced power state and as such can struggle to get enough torque in the gears it desires so shifts around alot more than usual. Its not actually the gearbox that is at fault, but the engine! The symptoms you describe would point me towards this as a first point of call. Get the engine running well, (fresh oil, fresh filter, injector clean, intake clean, MAP, MAF etc etc, (whatever is relevant to your specific models engine health), once the engine is as good as it can get, you can go and run the gearbox reset routine in ECU Scan. I have written how to do it in other threads to have a search around.

These TF80-SC boxes are rock solid, so don't be so sure its a gearbox fault!

2008 159 TI 2.4 JTDM QTRONIC
My Car Details______http://www.jabawoki.com/2014/07/07/alfa-159-ti/
Project Halo Wiki____https://projects.jabawoki.com/index.php/Project_Halo_UK
Project Halo Page____https://www.facebook.com/ProjectHaloUK
JabawokJayUK is offline  
Sponsored Links

Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Alfa 159, Brera & 946 Spider

change , oil , qtronic , transmission

Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

For the best viewing experience please update your browser to Google Chrome