Uninstall DSG when change timing belt

[AntonGangsta]

Hi everybody,

I have t6 TDI 2.0 with DSG, 2019, SWB

I brought it to the repairing shop to change the timing belt. A day later the guy from the shop told be that DSG must be uninstalled to do the job.

Is it really necessary? Or the timing belt can be changed without DSG uninstalling?

 

[DXX]

DSG is the clutch, completely the opposite side of the engine to the timing belt. I’d advise you take your van elsewhere.

 

[Pauly]

Cant see why you would need to remove the gearbox to do a belt change

Could there be a separate issue that they need to resolve ?

 

[Dellmassive]

The garage may be referring to the DMF, Dual Mass Flywheel.?

You need to remove the DSG gearbox to do that job.

Dose the van make rattling sounds when in park?

 

[AntonGangsta]

I asked them to change the crankshaft oil seal because I see the leaking in the area of the timing belt. The only this. The car is FWD

 

[Dellmassive]

That's the front crank shaft main seal... That can leak. ... Timing belt end.. no need to remove the gearbox.

Then there is the rear main seal..... Quick is the fly wheel end..... They does need to have the gearbox out.

So no reason to remove the box for a front main seal.

Maybe call them back and question why they want to remove the gearbox.

They are load of videos on YouTube that show the process..... Have a quick look to see what's involved.

 

[AntonGangsta]

That's the front crank shaft main seal... That can leak. ... Timing belt end.. no need to remove the gearbox.

Then there is the rear main seal..... Quick is the fly wheel end..... They does need to have the gearbox out.

So no reason to remove the box for a front main seal.

Maybe call them back and question why they want to remove the gearbox.

They are load of videos on YouTube that show the process..... Have a quick look to see what's involved.

They sent me this picture from the official manual.. And even pictures from the car itself.. So it seems it is necessary. + actually the guy from that repair shops is my very good friend..

 

[Dellmassive]

The blue bit pictured is the sump.

And yes the sump is removed when they do the front main seal..

I had mine done at 61k under warranty....

Post in thread '@Dellmassive`s T6 T32 Sportline 204 LWB DSG PV MY18 - Van Adventure'

7 Mar 2023

61k - Engine oil leak ( front main crankshaft seal ) - FOC under warranty

26/01/2023​

61289

£0.00

front crankshaft oil seal replaced - warranty (oil leak)

this was highlighted when looking at the power steering rack low oil above.

this was visible from behind the drivers side wheel . .





@Loz was bang on and diagnosing the front crankshaft seal as leaking . . .








this was confirmed by the dealer while it was in for the service above. . .

it...

• Dellmassive

• 

.

 

[AntonGangsta]

The blue bit pictured is the sump.

And yes the sump is removed when they do the front main seal..

I had mine done at 61k under warranty....

As I see.. Interesting.. What can be done to prevent such the oil leaking in the future? Any stronger seal? Different oil type? Warming up the engine before start by webasto?

 

[Frigo110]

They sent me this picture from the official manual.. And even pictures from the car itself.. So it seems it is necessary. + actually the guy from that repair shops is my very good friend..

View attachment 310480

For the none-native speakers.

"Depending on the flywheel variant the bolts 13 & 12 can't be removed without removing the flywheel"

DSG, DSG AWD, Manual single turbo, manual single turbo AWD.

 

[DXX]

For the none-native speakers.

"Depending on the flywheel variant the bolts 13 & 12 can't be removed without removing the flywheel"

DSG, DSG AWD, Manual single turbo, manual single turbo AWD.

I was reading the same in a VW manual a few days ago, crazy design.

 

[Dellmassive]

As I see.. Interesting.. What can be done to prevent such the oil leaking in the future? Any stronger seal? Different oil type? Warming up the engine before start by webasto?

Nothing can be done, but the seals have been revised and the replacement will last longer.... Hopefully. (Regular driving and oil changes would help if assume)

It's a plastic part, there are some ideas about how they start leaking, but ultimately it's a rubber shaft seal that wears and starts to leak.... Once it starts leaking it needs replacing... It can get on the timing bell if not sorted.

But the timing belt needs removing.

So it's normally, new:

Front main seal on crank,
Timing belt,
Water pump,
Sump reseal
Oil and filter.

The sump uses sealant, and needs the engine drained of oil. Then left over night to set, before any oil, (assumed new,) is put back in. With a new filter.

FYI:... Mine was a DSG 204 BiTurbo,


.

 

[Dellmassive]

See her at 15min48.

Most garages do it with out removing the sump or DSG box.

But the official vw book way is to remove the sump so that the lower end of the new crank seal is correctly sealed with sealant.... Due to the slim chance of getting any sealant in the engine with the "push on and slide" method.

When VW done mine they removed the sump and left over night, but the sink ended up leaking so they had to take it off and redo it!!

.