Seat Leon SE TDI 1.6 auto registered May 2013 - Seat Leon 2013 DSG 7 auto gearbox problem - StephenH

My Seat Leon DSG gearbox sometimes judders when I accelerate away from a speed of, say, 5-10 mph. If I accelerate very gently it is ok, if I accelerate harder it is more likely to judder. It only does this occasionally, I think more often when the car has been driven for some while. The car had the gearbox oil changed from synthetic to mineral under a recall in 2014. The car has done 30,000 miles and been serviced annually. Does anyone have any idea of what might cause this problem? If it needs specialist attention, can anyone recommend a repairer; I live in Walton on Thames, Surrey. Many thanks.

Seat Leon SE TDI 1.6 auto registered May 2013 - Seat Leon 2013 DSG 7 auto gearbox problem - skidpan

The 7 speed DSG used by VAG is not a box that any same person would recomend. It has a torque limit of 250 nm which is exactly what the 1.6 TDi produces.

Have you had the car form new? If not did the previous owner fit a tuning box or have it chipped or remapped. Any of these will shorten the life of the gearbox.

You have 3 options in reality

Carry on as it is and hope its not a terminal problem

Sell it and buy a manual car

Take it to a Seat dealer and hope they can get some goodwill for the rebuild form VAG but it could cst you £££££'s. If the car has not been VAG serviced forget the goodwill even though the oil was changed under the recall.

If you must have an auto and a diesel the 6 speed in the 2 litre VAG cars is much more robust.

The petrol 1.4 are a truly great car in manual form but also come with the 7 speed DSG making them a poor buy.

Auto boxes in small low powered cars are the work of the devil in most cases and are best avoided.

Seat Leon SE TDI 1.6 auto registered May 2013 - Seat Leon 2013 DSG 7 auto gearbox problem - daveyjp
Sounds like a mechatronic unit problem, basically the part which acts as your left foot would to engage the clutch.

I had one fail on an A3 diesel 10 years ago, part cost was £1500, thankfully the car was under warranty.
Seat Leon SE TDI 1.6 auto registered May 2013 - Seat Leon 2013 DSG 7 auto gearbox problem - 3uga

Heard of a similar problem on a golf gti mk6. It involved weard out clutches.

Now, another golf, this time not the gti but still petrol had the same judder and wasnt the lucky. Mechatronic unit faild beacause of metal shavings in oil, so they avided to put new mechatronic sistem in it and replaced the whole gearbox.

Seat Leon SE TDI 1.6 auto registered May 2013 - Seat Leon 2013 DSG 7 auto gearbox problem - medview

Hi

Dry clutch DSG judders are a sign of clutch plate wear and I got my DSG clutchpack replaced at 35k miles on a 1.4TSI petrol. This was within the 3+1 year extended warrantee.

The software build also plays a part and I had one update before the clutchpack change (improving things a bit) and one after the clutchpack change to cure jerky downshifting when approaching a stop.

As said above, the 1.6 diesel pushes the 7 speed DSG dryclutch gearbox to it's limit making this a marginal combination. The wet cluch 6 speed DSG is better suited to high torque and is fitted to the 2.0 diesel. It doesn't judder or wear out but needs oil changes every 40k miles.

Do you get judders in reverse gear too, as I did?

Joe

 

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