Hi i don't really know if this is the right place to post this but I'm new to this forum here goes 

Skoda superb 2017 2.0tdi fwd 

Basically it had an issue with the dsg/mechtronic it would stay started in P/N but stalls in D/R so plugged snap on obd in and came up with a code p271700 pressure control solenoid "D" intermittent so I've took out the mechtronic unit and sent it off to be tested firstly they broke it during shipping they said they kinda brushed it of like its no big deal and told me its cosmetic damage secondly they told me the mechtronic is fully working today they have said it has a software issue and needs to be updated or something along the lines for £500 it looks to have the dq381 mechtronic 

My question is are they trying to rip me off? Has anyone else had the same/similar problems? What could possibly be the issue?

Thanks 😊 any help at all would be appreciated 👏 

Who are 'they' if you don't mind me asking?

1 hour ago, Gammyleg said:

Who are 'they' if you don't mind me asking?

3 hours ago, Gammyleg said:

Who are 'they' if you don't mind me asking?

Some place called ecu testing

My experience with them was bad also. A bit shabby all round.

I would get them to send the unit back to you and get a second opinion.

10 minutes ago, Gammyleg said:

My experience with them was bad also. A bit shabby all round.

I would get them to send the unit back to you and get a second opini

10 minutes ago, Gammyleg said:

My experience with them was bad also. A bit shabby all round.

I would get them to send the unit back to you and get a second opinion.

On their website it says 1-2 day they've had the mechatronic for 2 weeks now they damaged it/ in transit they told it had been damaged when I asked where and for more details it took them 6 days to reply and they kinda brushed it off saying it's only cosmetic damage 2 days ago told me the unit was working and ready to be sent back to me today they say software issue and to order the parts it would take 3 days but for software I'm pretty sure it wouldn't require hardware parts to be ordered 🤷‍♀️

4 hours ago, jameschunggg said:

Hi i don't really know if this is the right place to post this but I'm new to this forum here goes 

Skoda superb 2017 2.0tdi fwd 

Basically it had an issue with the dsg/mechtronic it would stay started in P/N but stalls in D/R so plugged snap on obd in and came up with a code p271700 pressure control solenoid "D" intermittent so I've took out the mechtronic unit and sent it off to be tested firstly they broke it during shipping they said they kinda brushed it of like its no big deal and told me its cosmetic damage secondly they told me the mechtronic is fully working today they have said it has a software issue and needs to be updated or something along the lines for £500 it looks to have the dq381 mechtronic 

My question is are they trying to rip me off? Has anyone else had the same/similar problems? What could possibly be the issue?

Thanks 😊 any help at all would be appreciated 👏 

Any suggestions on what the issue might be with the mechtronic or gearbox

My instant reaction to that answer would be, why has this suddenly manifested itself, its a 2017 model, 8 years old so how come the software issue has only just become apparent?

8 hours ago, jameschunggg said:

Any suggestions on what the issue might be with the mechtronic or gearbox

It's common for the DQ381 on cars before 2020/2021 to have issues with clutch position sensors in the mechatronics. But this is shot in the dark, it requires proper diagnostics by another place as others suggested.

ECU Testing will carry out a diagnosis but will refuse to tell you their findings. They will also refuse to tell you which parts, if any, were inspected/checked or which were replaced. These are all 'Trade Secrets' apparently.

Presumably they only charged you a diagnostic fee as they have not been able to repair the unit?

2 hours ago, Gammyleg said:

ECU Testing will carry out a diagnosis but will refuse to tell you their findings. They will also refuse to tell you which parts, if any, were inspected/checked or which were replaced. These are all 'Trade Secrets' apparently.

Presumably they only charged you a diagnostic fee as they have not been able to repair the unit?

Yes but now they want £502 for some software problem and they said it would take 3 days for replacement parts to arrive but I'm sure for software you wouldn't need to replace any hardware or am I wrong

5 hours ago, fr1nklyn said:

It's common for the DQ381 on cars before 2020/2021 to have issues with clutch position sensors in the mechatronics. But this is shot in the dark, it requires proper diagnostics by another place as others suggested.

Any recommendations on a good company for the repair/diagnosis

2 hours ago, jameschunggg said:

or am I wrong

My experience of ECU Testing and their refusal to discuss the diagnosis beyond the cost is that you will never know.

On 27/06/2025 at 13:45, jameschunggg said:

Any recommendations on a good company for the repair/diagnosis

Hi mate, i too have developed problems with the same gearbox but with some different errors. I was recommended on this forum to use ECUTESTING, but after some research and discussing it with my VAG specialist and in their experience it's best to avoid using them due to the issues they've had in the past going down that route. I think years ago the company was alot better.

I fully trust their opinion, as they are independent VAG specialists. When factoring in all the costs, including labour, etc., having the mechantronic unit replaced directly with parts from Germany was only slightly more expensive in the scheme of things, and I will have a complete history of parts replaced in the unit.

It's clear the mechantronic unit on the DQ381 has issues, and I'm furious it's not being recalled and replaced at VWs expense.

Edited 30 June, 202530 Jun by Kevinmaj

You did well not to use ECUTESTING. Consider it a bullet dodged.

The replacement option is far better IMO.

I sent mine to ECU.de

Didn't want the hassle of export/import etc.

I was very happy with the service.

@defsix Is that because you are in the same country as where you sent it?

Someone in the UK would be sending to another country.

56 minutes ago, Ootohere said:

@defsix Is that because you are in the same country as where you sent it?

Someone in the UK would be sending to another country.

No, Ireland. They collected and shipped via DHL

So you are in the EU. How would someone know unless you tell them.

1 hour ago, Ootohere said:

So you are in the EU. How would someone know unless you tell them.

My apologies for not clarifying that.

Previously I probably would have sent it to the UK, but too much of a headache now and added delays.

Irrespective, there are a few options in the UK and more in Europe, if time is not an issue.

Price wise they were all fairly similar. The parts alone i think were around €200 if you wanted to do it yourself. There's a few guides on YouTube

Edited 30 June, 202530 Jun by defsix

DSG gearboxes? Anywhere with a TVS Engineering sticker is worth a look.

Hi right basically an update regarding the issues I was having

Ecu testing came back and said mechtronic unit was fine however there's was an issue with the software of the mechtronic unit so I declined the repair like many people told me to do and installed the mectronic back in heres the wierd part that's confused me

Without dsg oil it start and drives without stalling wheels turn no issue

With gearbox oil same issue stalls with same code checked via vcds this time

Pressure control solenoid 4 p271700

Took oil back out now it's not stalling again oil after removing was dirty/dark even though it was fresh oil after starting for roughly 15 no driving in park

However there is another code that's come up that I've not seen on it before p0c2900 aux pump is this maybe because oil is low alos I did do a basic settings for the pump on vcds

(Only started approx 5-15 second without oil and made sure dsg temp didn't get over 40

Honestly not really sure where to go from here

Not sure what you're hoping to achieve here, ie running without the correct oil levels, or how that will cure a software issue.

There is a set procedure and temperature requirement when filling the transmission.

Edited 3 July, 20253 Jul by Gammyleg
Extra line added

17 minutes ago, Gammyleg said:

Not sure what you're hoping to achieve here, ie running without the correct oil levels, or how that will cure a software issue.

There is a set procedure and temperature requirement when filling the transmission.

If you read what i wrote at the beginning

It was sent off for testing i was told the mechtronic is fully working after me asking for the mechtronic to be returned to me i was told it had a software issue and few days later of me asking for it to be sent back because I asked for it to be sent i would only have to pay £24 instead of £502 another issue is that software issues doesn't require parts to be fitted to the mechtronic that take 3 days to be delivered

As @Gammyleg said, there is proscribed method on how to fill the DSG box with oil and think that you must follow it precisely other wise you run an elevated risk of major damage. I would not ever take the risk of even attempting to start the engine with first following that procedure to fill the gearbox correctly.

There is dedicated machine for this as in this video.

https://youtu.be/TMiWH5YjUIg

Edited 3 July, 20253 Jul by Graham Butcher

29 minutes ago, Graham Butcher said:

As @Gammyleg said, there is proscribed method on how to fill the DSG box with oil and think that you must follow it precisely other wise you run an elevated risk of major damage. I would not ever take the risk of even attempting to start the engine with first following that procedure to fill the gearbox correctly.

There is dedicated machine for this as in this video.

https://youtu.be/TMiWH5YjUIg

https://youtu.be/DBdbBGhxrtU?si=Zi-GQOaYxpQXfjeI

I followed this video to fill the gearbox oil after receiving the mechtronic back

Like I said it was done all following the video it's not the first time me doing a dsg oil change

Quick recap it was coming up with p271700 pressure control solenoid d intermittent it would stall when put into d/r stay started in p/n

I removed mechtronic to send it off to be tested

They said it was fully working I asked for unit back they ignored me for 2 days and then rang saying it maybe a software issue

After asking around everyone told me to not to go forward with the repair for £502 as it didn't make sense

Recived mechtronic back with 4 loose screws and bit of dirt on it

Cleaned up mechtronic tightened all the screws and installed back into car

Started car to see if I fitted it right the wheels started moving and codes gone then after filling oil codes came back and car started to stall like before me doing touching anything

Took oil back out it doesn't stall and p0c2900 code coming up but comes and goes

That's where I'm at now oil been drained the car starts and doesn't stall and tyres move

Like I said before it was only started 5 to 10 seconds maybe even less

With a DQ200 dry clutch there is oil in the MCU and oil in the box. But wet clutch the same oil does both. You need oil and pressure.