Hello everyone. Today during a motorway drive the car suddenly came off gear and this error occurred. 

 

The error disappeared after I stopped the engine and turned it on but it will come again only in the 6th gear I've noticed. 

 

Also when the car is in the 4th or 6th gear and I take off the foot from acceleration it feels like the car is sluggish and the rpm indicator is going up and down.

 

So seems like only the 6th gear trigger that error.

 

The car pulls and change the gears as normal so no noises or something.

 

The clutch was replaced 35k ago so I'm thinking to change the oil hopefully this will solve it.

 

Anyone experienced these symptoms?

It's worth a try. How long since a fluid and filter change. But it doesn't sound great with the 6th gear problem and other symptoms. New clutch 35k ago? Assume new fluid then? How many miles in total? 

Why was the clutch replaced?

have you checked for any fault codes?

 

 

5 hours ago, TheClient said:

It's worth a try. How long since a fluid and filter change. But it doesn't sound great with the 6th gear problem and other symptoms. New clutch 35k ago? Assume new fluid then? How many miles in total? 

It's at 140k miles now so the oil has been changed with the clutch 35k ago at around 105k.

The last 30k I used the car for uber so daily driving I done 30k miles in 9 months.

32 minutes ago, ApertureS said:

Why was the clutch replaced?

have you checked for any fault codes?

 

 

I don't really know why.The previous owner replaced the clutch. I haven't checked for the fault codes yet but I'm going to do it later today.

2 hours ago, Mikey89 said:

I don't really know why.The previous owner replaced the clutch. I haven't checked for the fault codes yet but I'm going to do it later today.

Let us know the full fault code with description when you get it

5 hours ago, ApertureS said:

Let us know the full fault code with description when you get it

Checked and these two codes came.

Mmm. That can be mechatronic, or clutch or speed sensor. When I've seen users report it. It's been the mechatronic which is not what you want to hear... 

On 02/04/2023 at 17:28, TheClient said:

Mmm. That can be mechatronic, or clutch or speed sensor. When I've seen users report it. It's been the mechatronic which is not what you want to hear... 

After further investigation done by some DSG specialists they concluded that the clutch is the problem and needs replacement. My question how is the clutch done if 35k miles ago has been replaced? I don’t really know why the previous owner changed the clutch. It may be something else that wears out the clutch prematurely?

Has anyone experienced this before?

4 hours ago, Mikey89 said:

After further investigation done by some DSG specialists they concluded that the clutch is the problem and needs replacement. My question how is the clutch done if 35k miles ago has been replaced? I don’t really know why the previous owner changed the clutch. It may be something else that wears out the clutch prematurely?

Has anyone experienced this before?

That is very pre-mature on a dq250. With proper oil changes and good conditions you can often expect 160k out of those clutch packs.

 

On the dq200, I have heard of failures that low, there is one suspected failure in the threads now. But the dq200 is a different animal. 

 

For the dq250 to fail that quickly then it seems likely clutch was either faulty from manufacture or not set up properly on installation. How convinced are you it was definitely replaced? Is there a receipt? Can you call the repair garage to ask to read out the service fault and repair report? 

1 hour ago, TheClient said:

That is very pre-mature on a dq250. With proper oil changes and good conditions you can often expect 160k out of those clutch packs.

 

On the dq200, I have heard of failures that low, there is one suspected failure in the threads now. But the dq200 is a different animal. 

 

For the dq250 to fail that quickly then it seems likely clutch was either faulty from manufacture or not set up properly on installation. How convinced are you it was definitely replaced? Is there a receipt? Can you call the repair garage to ask to read out the service fault and repair report? 

This is the invoice from the service history of the car with what has been done. This happened in 2021 and I haven't tried to contact the garage as I don't think I have any chance to find out after two years since has been replaced.

Ok. Seems accurate and legitimate. I don't know why it has failed again. How far away is this garage from you.? Maybe call them and talk through options. Get them to look at it again. You have no legal remedy against them but they may be cooperative with a genuine and friendly review request. 

Never driven a Mechatronic but would the clutch pack be subject to much more wear from urban taxi use? Does it wear when stopped at lights, hill-hold etc?

 

I guess what I am asking is is 35K miles of taxi use the equivalent of 140K of motorway use in terms of Mechatronic clutch wear?

 

Just throwing it out there, I have no knowledge but you have the 2 best people on the case, Aperture S and The Client.

15 hours ago, J.R. said:

Never driven a Mechatronic but would the clutch pack be subject to much more wear from urban taxi use? Does it wear when stopped at lights, hill-hold etc?

 

I guess what I am asking is is 35K miles of taxi use the equivalent of 140K of motorway use in terms of Mechatronic clutch wear?

 

Just throwing it out there, I have no knowledge but you have the 2 best people on the case, Aperture S and The Client.

Even 35k of 'riding' a dsg clutch wouldnt wear it to that point due to the oil cooling features on the clutch packs preventing them from overheating and disintegrating from heat. 

They also have temperature sensors where if the clutch gets too hot it simply disengages it until its cooled down and only allows the other gearset to work.

 

Chances are it was incorrectly shimmed and caused excessive pressure on the friction material and has worn the clutch out that way. Or possibly inferior parts. 

Yes my experience of multiplate oil bath clutches are that they can dissipate a tremendous amount of heat and cope with loads of abuse.

 

My Blackbird engined Caterhams had the standard Honda motorcycle clutch and were fine in the much heavier vehicle, until you put fully synthetic engine oil in then they slip like bu33ery, the friction modifiers played havoc, I stuck with Castrol Superbike oil.

On 09/05/2023 at 13:50, ApertureS said:

Even 35k of 'riding' a dsg clutch wouldnt wear it to that point due to the oil cooling features on the clutch packs preventing them from overheating and disintegrating from heat. 

They also have temperature sensors where if the clutch gets too hot it simply disengages it until its cooled down and only allows the other gearset to work.

 

Chances are it was incorrectly shimmed and caused excessive pressure on the friction material and has worn the clutch out that way. Or possibly inferior parts. 

I've been told by the garage that it's a mechatronik fault when doesn't have enough pressure and will wear the clutch prematurely. The cost approx £3500 so i don't know if it worth the repair.

They would be ripping you right off if it was to cost that.

Is that for them to replace with a new or refurbished MCU? 

48 minutes ago, toot said:

They would be ripping you right off if it was to cost that.

Is that for them to replace with a new or refurbished MCU? 

They pretend it's brand new and that price is for the clutch plus mec unit. I have told them to replace the clutch and leave the mec unit like that as i can’t afford fixing both at that price.  The only way is to find a second hand one but I don’t know if it’s worth. I don’t know what to do in this situation. Any suggestions?

https://www.ebay.co.uk/itm/403465043218?chn=ps&norover=1&mkevt=1&mkrid=710-134428-41853-0&mkcid=2&mkscid=101&itemid=403465043218&targetid=1814673647182&device=c&mktype=pla&googleloc=9045889&poi=&campaignid=19089547614&mkgroupid=142438599285&rlsatarget=pla-1814673647182&abcId=9303859&merchantid=7256454&gclid=EAIaIQobChMIvYu73Lvr_gIV5oBQBh2Bcw4AEAQYBSABEgKNz_D_BwE

Needs a DQ250 6 speed wet clutch DSG though. 

Edited 10 May, 20233 yr by toot

7 hours ago, Mikey89 said:

I've been told by the garage that it's a mechatronik fault when doesn't have enough pressure and will wear the clutch prematurely. The cost approx £3500 so i don't know if it worth the repair.

It's possible. Is it reporting a oil pressure adaption limit reached in fault code reads? How sure are they the mcu is faulty? Based on what, exactly?

 

4 hours ago, Mikey89 said:

They pretend it's brand new and that price is for the clutch plus mec unit. I have told them to replace the clutch and leave the mec unit like that as i can’t afford fixing both at that price.  The only way is to find a second hand one but I don’t know if it’s worth. I don’t know what to do in this situation. Any suggestions?

1, I guess wreckers for used low mileage dsg. Needs to be same engine ideally for ratios and exact match or otherwise need to confirm  variant match of transmission.

 

And not without risks.

 

2, Specialist independent transmission place. One of the ones you've tried indicating clutch at fault maybe?.  Test and diagnose transmission, strip down inspect. Replace clutch, send mcu for refurbishment,  if confirmed faulty.. 

 

I Suppose,  assuming mcu refurb required it could still approach  £2.5 to £3k guessing. 

 

3 hours ago, ords said:

https://www.ebay.co.uk/itm/403465043218?chn=ps&norover=1&mkevt=1&mkrid=710-134428-41853-0&mkcid=2&mkscid=101&itemid=403465043218&targetid=1814673647182&device=c&mktype=pla&googleloc=9045889&poi=&campaignid=19089547614&mkgroupid=142438599285&rlsatarget=pla-1814673647182&abcId=9303859&merchantid=7256454&gclid=EAIaIQobChMIvYu73Lvr_gIV5oBQBh2Bcw4AEAQYBSABEgKNz_D_BwE

Please ignore this post.

7 hours ago, TheClient said:

It's possible. Is it reporting a oil pressure adaption limit reached in fault code reads? How sure are they the mcu is faulty? Based on what, exactly?

 

1, I guess wreckers for used low mileage dsg. Needs to be same engine ideally for ratios and exact match or otherwise need to confirm  variant match of transmission.

 

And not without risks.

 

2, Specialist independent transmission place. One of the ones you've tried indicating clutch at fault maybe?.  Test and diagnose transmission, strip down inspect. Replace clutch, send mcu for refurbishment,  if confirmed faulty.. 

 

I Suppose,  assuming mcu refurb required it could still approach  £2.5 to £3k guessing. 
This is the report they give me. I believe there are not fault codes for mec unit. This is based on what they’re saying. 

 

 

7 hours ago, TheClient said:

It's possible. Is it reporting a oil pressure adaption limit reached in fault code reads? How sure are they the mcu is faulty? Based on what, exactly?

 

1, I guess wreckers for used low mileage dsg. Needs to be same engine ideally for ratios and exact match or otherwise need to confirm  variant match of transmission.

 

And not without risks.

 

2, Specialist independent transmission place. One of the ones you've tried indicating clutch at fault maybe?.  Test and diagnose transmission, strip down inspect. Replace clutch, send mcu for refurbishment,  if confirmed faulty.. 

 

I Suppose,  assuming mcu refurb required it could still approach  £2.5 to £3k guessing. 

 

This is the report they gave me. There are no fault codes for mec unit.

Edited 11 May, 20233 yr by Mikey89

5 hours ago, Mikey89 said:

This is the report they gave me. There are no fault codes for mec unit.

I think it could be either or both with those codes. Are they using their experience or covering the possibilities and risk to them, by saying replace both? I don't know to be honest and would you believe their answer? To be fair I suppose they don't want to be held responsible for an ineffective repair - incorrectly diagnosed or partially diagnosed. 

 

Those faults are very recent, unless cleared before.  What if the mechatronic has only just become faulty and it is the cause for the misshifts.  Surely there is a chance the clutch packs will be OK? 

 

Dates and mileage should be first occurrence with the counter in freeze frame data increasing counter  each additional log (unless cleared).  

 

Matter of who you trust and if you could stomach the overall cost. I'd be a bit worried going in on basis of clutch pack replacement only on your head. What if it's not the problem -clutch packs fine,  or not the problem alone - as they've diagnosed both faulty. 

 

Thinking out loud,  would it make more sense to start with the mechatronic and try with the existing clutch? If the clutch is OK, great.  If not, you're only then back to doing both. The mechatronic can usually be removed / replaced in car, but access not easy, some peripheral disassembly.  Easier to do if the transmission was being removed on bench for clutch pack but the 2 together are pricey, as you've discovered.  

 

Mechatronics can either be repaired but not always successfully or exchange rebuilt or new unit put in.

 

Sorry, not totally clear in my head what you should do at this precise point in time.