Hi all,

 

I own a 4x4 Octavia 2.0TDi (135kw) with DSG and when the car is shifting gears there is some weird drone from the back of the car. It is most noticable if I try to accelerate harder.

 

Seems like the this weird drone/humming noise is most noticable when shifting from 2nd to 3rd gear. A friend of mine owns Passat CC (2011) with 4 motion and he has exactly the same noise.

 

Is that something common on cars with Haldex or something is going bad at the rear? 2 weeks ago changed haldex and diff oil. In the upcoming weeks plan to change DSG oil as well.

 

Is there also any way to adapt the gearbox so it doesn't shift to 5th and 6th in the city? Absolutely hate to use the DSG in the city in D mode since it tries to push the car with 1200-1500rpm in  the 5th/6th gear and then car starts to shake from the load, aferwards switching to the 4th gear to accelerate. This is the main reason I want to drive only in sport mode when driving around the city.

 

 

@brimarma Do you know, was the haldex filter cleaned as part of the haldex service or only the oil was changed? Hint: Skoda and rest of the VW dealers don’t do it. But many independent vw garages know for the haldex pump issues due to the accumulated deposits from the haldex clutch and clean the filter as part of the service.

 

Try to launch the car on a wet road few times and see do you also observe shaking like the guy in the beginning of this video 

 

The noise could also be from the rear diff? I hope that the noise hasn’t appeared after the diff service. Has it?

 

DSG+TDI in the city are **** combination, I can confirm.. Some say that driving it manually for some days adapts the DSG to owners driving style, but that didn’t work for me, so can’t tell you for sure.

 

The Sport mode is kind of useless, it keeps revs too high for longer than I want why accelerating, but at least doesn’t torment the car at really low revs for the sake of a half liter diesel  

 

5 minutes ago, fr1nklyn said:

@brimarma Do you know, was the haldex filter cleaned as part of the haldex service or only the oil was changed? Hint: Skoda and rest of the VW dealers don’t do it. But many independent vw garages know for the haldex pump issues due to the accumulated deposits from the haldex clutch and clean the filter as part of the service.

 

Try to launch the car on a wet road few times and see do you also observe shaking like the guy in the beginning of this video 

 

The noise could also be from the rear diff? I hope that the noise hasn’t appeared after the diff service. Has it?

 

DSG+TDI in the city are **** combination, I can confirm.. Some say that driving it manually for some days adapts the DSG to owners driving style, but that didn’t work for me, so can’t tell you for sure.

 

The Sport mode is kind of useless, it keeps revs too high for longer than I want why accelerating, but at least doesn’t torment the car at really low revs for the sake of a half liter diesel  

 

 

Filter comes together with the pump. There was a big amount of gunk inside when the oil was changed. The pump was dead. Fitted a new OE Haldex pump with fresh oil. Will continue to change the Haldex oil every 20 000km.

 

Will test the launch in wet once it rains again but I haven't noticed any shaking that brutal as in the video. It's more of a subtle drone/virbation right when the gear changes. Difficult to describe it to be honest.

The drone noise will be an vibration of the carden shaft being unbalanced. Usually caused by a bearing failure, either a carrier bearing or the worse case scenario is that the Haldex shaft is dry due to lack of fluid in the diff. Either way, time to get it looked at.

On 05/04/2021 at 15:18, brimarma said:

Hi all,

 

I own a 4x4 Octavia 2.0TDi (135kw) with DSG and when the car is shifting gears there is some weird drone from the back of the car. It is most noticable if I try to accelerate harder.

 

Seems like the this weird drone/humming noise is most noticable when shifting from 2nd to 3rd gear. A friend of mine owns Passat CC (2011) with 4 motion and he has exactly the same noise.

 

Is that something common on cars with Haldex or something is going bad at the rear? 2 weeks ago changed haldex and diff oil. In the upcoming weeks plan to change DSG oil as well.

 

Is there also any way to adapt the gearbox so it doesn't shift to 5th and 6th in the city? Absolutely hate to use the DSG in the city in D mode since it tries to push the car with 1200-1500rpm in  the 5th/6th gear and then car starts to shake from the load, aferwards switching to the 4th gear to accelerate. This is the main reason I want to drive only in sport mode when driving around the city.

 

 

Can’t help with droning noise as my car is not a 4x4 but it has the same engine and dsg box as yours, totally agree I found the way the gearbox worked  in town was terrible, the only real solution is a tcu tune, check out a company called TVS engineering they do a drivability tune costs £400 though but completely transformed the car, makes it 100% nicer to drive  expensive but worth it for me as most of my driving is in the city and I plan on keeping my car for a long time