Shift Problem Solution ( w205 No More Jerky )
Thread Starter
Junior Member
Joined: Aug 2019
Posts: 46
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From: Kansas
C300
Shift Problem Solution ( w205 No More Jerky )
Anyone who has shift jerked into gear 1-2 or 2-3 can try this Diverter valve DV+ T9358. It take 20 minutes to install and very easy DIY job.
I tried it for 6 months and there is no more jerky, run like an CVT transmisson
GFB’s DV+ solution is more responsive, less expensive, easier to install, and doesn’t cause compressor surge/ turbo flutter
It provides an faster boost recovery on gearshift and during throttle modulation
Improved boost holding ability
You can also buy it on ebay , make sure the model is T9358 and the real one.
Link for more details : https://gfb.com.au/products/blow-off...-volvo-detail/
Last edited by Khanh Tran; Aug 29, 2019 at 10:31 AM.
Thread Starter
Junior Member
Joined: Aug 2019
Posts: 46
Likes: 5
From: Kansas
C300
Anyway, thank you for your comment 
. Before you type ( Hand ) check your knowledge first ( Brain ).
In an effort to help you open your mind. I just give you some of the information
You can search by google : BLOW OFF/DIVERTER VALVES
Youtube Research :
Make sure your car is Turbo Engine
. Before you type ( Hand ) check your knowledge first ( Brain ).In an effort to help you open your mind. I just give you some of the information
You can search by google : BLOW OFF/DIVERTER VALVES
Youtube Research :
Make sure your car is Turbo Engine
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Thread Starter
Junior Member
Joined: Aug 2019
Posts: 46
Likes: 5
From: Kansas
C300
The video I post is the same ideal as C300 W204 and W205 Turbo Charge.
You follow his instruction and do the same way on W205.
I did it. It makes my car transmission work smoother
You follow his instruction and do the same way on W205.
I did it. It makes my car transmission work smoother
Junior Member
Joined: Mar 2019
Posts: 64
Likes: 15
C300
Search the forms here, there are numerous references to after-market atmospheric BOV's and other than adding the "pshhhhh" sound at vent, do not improve performance.
Last edited by Pope_RW; Aug 30, 2019 at 06:57 AM. Reason: content
MBWorld Fanatic!
Joined: Apr 2013
Posts: 1,130
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From: Belgium
W205
Thread Starter
Junior Member
Joined: Aug 2019
Posts: 46
Likes: 5
From: Kansas
C300
Believe or not believe is up to you. Even if you put some bad quality gasoline can cause an engine damage. Everything need to have and experience in life. I did it and it worked on my car and my friend car. That's it. I have the right to share my good opinion.
Did you give your car a try yet ?
Did you give your car a try yet ?
Senior Member
Joined: Jul 2019
Posts: 286
Likes: 140
From: Bay Area, CA
2016 C300W4 (W205), Luxury Pkg, Diamond Silver Met. and Silk Beige\Espresso Interior
Back to reality though, I took my W205 in to the dealer last week and they applied software update campaign 2019030013 for the powertrain. Since I got the car back, all upshifts and downshifts are now smooth as butter.
I'm just not sure if it's smoother now because of the software update or because the transmission "learning" was reset as a result of the update. I guess if it was the latter, the shifts will gradually get rougher again.
As an aside, I installed a turbo BOV on my last car (Fiat 500 Abarth) and understand the mechanics behind it. At best the BOV will allow the turbo to recover faster after spooling, but mostly it just vents any remaining turbo boost/pressure to the atmosphere instead of recycling it back into the combustion cycle as the manufacturer intended. There is just no logical way it could affect a component as far downstream as the transmission.
I'm just not sure if it's smoother now because of the software update or because the transmission "learning" was reset as a result of the update. I guess if it was the latter, the shifts will gradually get rougher again.
As an aside, I installed a turbo BOV on my last car (Fiat 500 Abarth) and understand the mechanics behind it. At best the BOV will allow the turbo to recover faster after spooling, but mostly it just vents any remaining turbo boost/pressure to the atmosphere instead of recycling it back into the combustion cycle as the manufacturer intended. There is just no logical way it could affect a component as far downstream as the transmission.
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Posts: 1,130
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From: Belgium
W205
